802.1Q-2022 - IEEE Standard for Local and Metropolitan Area Networks--Bridges and Bridged Networks, Ethernet(45)

802.1Qcz-2023

802.1Qcz-2023 - IEEE Standard for Local and Metropolitan Area Networks--Bridges and Bridged Networks -- Amendment 35: Congestion Isolation

802.1Q-2022

802.1Q-2022 - IEEE Standard for Local and Metropolitan Area Networks--Bridges and Bridged Networks
https://standards.ieee.org/products-programs/ieee-get-program/

Contents

802.1Q-2022

1. Overview.. 74
   1.1 Scope.. 74
   1.2 Purpose. 74
   1.3 Introduction 75
2. Normative references. 83
3. Definitions . 87
4. Abbreviations. 109
5. Conformance 115
   5.1 Requirements terminology... 115
   5.2 Conformant components and equipment . 115
   5.3 Protocol Implementation Conformance Statement (PICS).. 116
   5.4 VLAN Bridge component requirements 116
   5.4.1 VLAN Bridge component options 117
   5.4.2 Multiple VLAN Registration Protocol (MVRP) requirements ... 123
   5.4.3 VLAN Bridge requirements for congestion notification 123
   5.4.4 Multiple Stream Registration Protocol (MSRP) requirements ... 124
   5.4.5 Shortest Path Bridging (SPB) operation (optional) .. 124
   5.4.6 Path Control and Reservation (PCR) (optional) . 125
   5.5 C-VLAN component conformance.. 126
   5.5.1 C-VLAN component options 126
   5.5.2 TE-MSTID (optional) . 126
   5.6 S-VLAN component conformance .. 127
   5.6.1 S-VLAN component options 127
   5.6.2 S-VLAN component requirements for Provider Backbone Bridge Traffic
   Engineering (PBB-TE) ... 127
   5.6.3 S-VLAN component requirements for PBB-TE IPS 128
   5.6.4 S-VLAN component requirements for ECMP with flow filtering ... 128
   5.7 I-component conformance ... 128
   5.7.1 I-component options . 128
   5.8 B-component conformance.. 129
   5.8.1 B-component options 129
   5.8.2 B-component requirements for PBB-TE 129
   5.8.3 B-component requirements for PBB-TE IPS 130
   5.8.4 B-component requirements for ECMP with flow filtering ... 130
   5.9 C-VLAN Bridge conformance... 130
   5.9.1 C-VLAN Bridge options . 130
   5.10 Provider Bridge conformance 130
   5.10.1 S-VLAN Bridge conformance 131
   5.10.2 Provider Edge Bridge conformance .. 131
   5.11 System requirements for Priority-based Flow Control (PFC) ... 131
   5.12 Backbone Edge Bridge (BEB) conformance . 131
   5.12.1 BEB requirements for PBB-TE .. 132
   5.13 MAC Bridge component requirements.. 132
   5.13.1 MAC Bridge component options 132
   5.14 MAC Bridge conformance... 133
   5.14.1 MAC Bridge options . 133
   5.15 TPMR component conformance 134
   5.15.1 TPMR component options 134
   5.16 TPMR conformance. 134
   5.16.1 TPMR options . 135
   5.17 T-component conformance .. 135
   5.17.1 T-component options 135
   5.18 End station requirements for MMRP, MVRP, and MSRP .. 135
   5.18.1 MMRP requirements and options . 135
   5.18.2 MVRP requirements and options 136
   5.18.3 MSRP requirements and options 136
   5.19 VLAN-aware end station requirements for CFM 137
   5.20 End station requirements—FQTSS . 137
   5.21 End station requirements for congestion notification 138
   5.22 MAC-specific bridging methods . 138
   5.23 EVB Bridge requirements 139
   5.24 EVB station requirements 139
   5.24.1 Edge relay (ER) requirements . 140
   5.25 End station requirements—enhancements for scheduled traffic . 141
   5.26 End station requirements—enhancements for frame preemption 142
   5.27 End station requirements—PSFP. 142
   5.28 End station requirements—Cyclic queuing and forwarding 142
   5.29 TSN CNC station requirements . 142
   5.30 VDP-NVO3 requirements 143
   5.30.1 VDP-NVO3 nNVE requirements . 143
   5.30.2 VDP-NVO3 tNVE requirements 143
   5.31 End station requirements—ATS 143
6. Support of the MAC Service . 144
   6.1 Basic architectural concepts and terms.. 145
   6.2 Provision of the MAC Service... 145
   6.2.1 Point-to-point, multipoint-to-multipoint, and rooted-multipoint connectivity ... 146
   6.3 Support of the MAC Service . 146
   6.4 Preservation of the MAC Service 147
   6.5 Quality of service (QoS) maintenance... 147
   6.5.1 Service availability ... 147
   6.5.2 Frame loss . 148
   6.5.3 Frame misordering 148
   6.5.4 Frame duplication . 149
   6.5.5 Transit delay . 150
   6.5.6 Frame lifetime . 150
   6.5.7 Undetected frame error rate .. 151
   6.5.8 Maximum Service Data Unit Size 151
   6.5.9 Priority 151
   6.5.10 Throughput 152
   6.6 Internal Sublayer Service (ISS) . 153
   6.7 Support of the ISS by specific MAC procedures. 153
   6.7.1 Support of the ISS by IEEE Std 802.3 (Ethernet) . 153
   6.7.2 Frame preemption . 153
   6.8 Enhanced Internal Sublayer Service (EISS) 154
   6.8.1 Service primitives . 154
   6.8.2 Status parameters 155
   6.8.3 Point-to-point parameters . 155
   6.8.4 Control primitives and parameters 155
   6.9 Support of the EISS . 156
   6.9.1 Data indications .. 157
   6.9.2 Data requests . 158
   6.9.3 Priority Code Point encoding 158
   6.9.4 Regenerating priority 160
   6.10 Support of the ISS/EISS by PIPs . 161
   6.10.1 Data indications .. 163
   6.10.2 Data requests . 164
   6.10.3 Priority Code Point encoding 164
   6.11 Support of the EISS by CBPs 165
   6.11.1 Data indications .. 166
   6.11.2 Data requests . 167
   6.11.3 Priority Code Point decoding 168
   6.11.4 Regenerating priority 168
   6.12 Protocol VLAN classification 168
   6.12.1 Protocol Templates ... 170
   6.12.2 Protocol Group Identifiers 170
   6.12.3 Protocol Group Database 170
   6.13 Support of the ISS for attachment to a PBN 171
   6.13.1 Data requests . 172
   6.13.2 Data indications .. 172
   6.14 Support of the ISS within a system.. 173
   6.15 Support of the ISS by additional technologies... 173
   6.16 Filtering services in Bridged Networks . 173
   6.16.1 Purpose(s) of filtering service provision . 174
   6.16.2 Goals of filtering service provision .. 174
   6.16.3 Users of filtering services . 174
   6.16.4 Basis of service ... 174
   6.16.5 Categories of service . 175
   6.16.6 Service configuration 175
   6.16.7 Service definition for Extended Filtering Services ... 175
   6.17 EISS Multiplex Entity 177
   6.18 Backbone Service Instance Multiplex Entity. 178
   6.18.1 Demultiplexing direction 179
   6.18.2 Multiplexing direction 180
   6.18.3 Priority Code Point encoding 180
   6.18.4 Status parameters 180
   6.19 TESI Multiplex Entity ... 181
   6.20 Support of the ISS with signaled priority 182
   6.20.1 Data indications .. 182
   6.20.2 Data requests . 183
   6.21 Infrastructure Segment Multiplex Entity . 183
   6.22 PDU and protocol discrimination and media. 184
7. Principles of Virtual Bridged Network operation 185
   7.1 Network overview 185
   7.2 Use of VLANs ... 186
   7.3 Active topology.. 186
   7.4 VLAN topology . 187
   7.5 Locating end stations . 188
   7.6 Ingress, forwarding, and egress rules. 189
8. Principles of Bridge operation ... 190
   8.1 Bridge operation 190
   8.1.1 Relay . 190
   8.1.2 Filtering and relaying information 191
   8.1.3 Duplicate frame prevention .. 191
   8.1.4 Traffic segregation 191
   8.1.5 Traffic reduction . 192
   8.1.6 Traffic expediting . 192
   8.1.7 Conversion of frame formats 192
   8.2 Bridge architecture... 193
   8.3 Model of operation... 195
   8.4 Active topologies, learning, and forwarding . 199
   8.5 Bridge Port Transmit and Receive... 200
   8.5.1 Bridge Port connectivity . 200
   8.5.2 TPMR Port connectivity . 201
   8.5.3 Support of Higher Layer Entities 202
   8.6 The Forwarding Process 202
   8.6.1 Active topology enforcement 203
   8.6.2 Ingress filtering ... 205
   8.6.3 Frame filtering 205
   8.6.4 Egress filtering 208
   8.6.5 Flow classification and metering 208
   8.6.6 Queuing frames ... 217
   8.6.7 Queue management ... 218
   8.6.8 Transmission selection 219
   8.6.9 Scheduled traffic state machines . 225
   8.6.10 Stream gate control state machines ... 232
   8.6.11 ATS Scheduler state machines ... 234
   8.7 The Learning Process. 238
   8.7.1 Default filtering utility criteria 238
   8.7.2 Enhanced filtering utility criteria 238
   8.7.3 Ageing of Dynamic Filtering Entries 239
   8.8 The Filtering Database (FDB) ... 239
   8.8.1 Static Filtering Entries 242
   8.8.2 Static VLAN Registration Entries 243
   8.8.3 Dynamic Filtering Entries . 244
   8.8.4 MAC Address Registration Entries .. 245
   8.8.5 Dynamic VLAN Registration Entries . 245
   8.8.6 Default Group filtering behavior 246
   8.8.7 Dynamic Reservation Entries . 247
   8.8.8 Allocation of VIDs to FIDs .. 247
   8.8.9 Querying the FDB . 248
   8.8.10 Determination of the member set for a VID . 252
   8.8.11 Permanent Database .. 252
   8.8.12 Connection_Identifier . 252
   8.9 MST, SPB, and ESP configuration information 253
   8.9.1 MST Configuration Table . 254
   8.9.2 MST configuration identification . 254
   8.9.3 FID to MSTI Allocation Table ... 254
   8.9.4 SPT Configuration Identification 254
   8.10 Spanning Tree Protocol Entity... 255
   8.11 MRP entities 255
   8.12 Bridge Management Entity.. 256
   8.13 Addressing ... 256
   8.13.1 End stations ... 256
   8.13.2 Bridge Ports .. 256
   8.13.3 Use of LLC by Spanning Tree Protocol Entities 257
   8.13.4 Reserved MAC addresses . 257
   8.13.5 Group MAC addresses for spanning tree entity .. 257
   8.13.6 Group MAC addresses for MRP Applications ... 259
   8.13.7 Bridge Management Entities 260
   8.13.8 Unique identification of a Bridge . 260
   8.13.9 Points of attachment and connectivity for Higher Layer Entities . 260
   8.13.10 VLAN attachment and connectivity for Higher Layer Entities .. 264
   8.13.11 CFM entities . 265
9. Tagged frame format . 267
   9.1 Purpose of tagging ... 267
   9.2 Representation and encoding of tag fields... 267
   9.3 Tag format 268
   9.4 TPID formats . 268
   9.5 Tag Protocol identification .. 268
   9.6 VLAN Tag Control Information (TCI).. 269
   9.7 Backbone Service Instance Tag Control Information (I-TAG TCI) 270
10. Multiple Registration Protocol (MRP) and Multiple MAC Registration Protocol (MMRP) 272
    10.1 MRP overview ... 272
    10.2 MRP architecture . 275
    10.3 MRP Attribute Propagation (MAP). 276
    10.3.1 MAP Context 277
    10.4 Requirements to be met by MRP. 278
    10.5 Requirements for interoperability between MRP Participants .. 278
    10.6 Protocol operation 280
    10.7 Protocol specification 284
    10.7.1 Notational conventions and abbreviations 285
    10.7.2 Registrar Administrative Controls 286
    10.7.3 Applicant Administrative Controls ... 287
    10.7.4 Protocol timers 287
    10.7.5 Protocol event definitions . 288
    10.7.6 Protocol Action definitions ... 290
    10.7.7 Applicant state machine .. 292
    10.7.8 Registrar state machine ... 292
    10.7.9 LeaveAll state machine ... 292
    10.7.10 PeriodicTransmission state machine . 295
    10.7.11 Timer values . 295
    10.7.12 Operational reporting and statistics .. 296
    10.7.13 Interoperability considerations ... 296
    10.7.14 External control ... 297
    10.8 Structure and encoding of Multiple Registration Protocol Data Units (MRPDUs) 297
    10.8.1 Structure .. 297
    10.8.2 Encoding of MRPDU parameters . 299
    10.8.3 Packing and parsing MRPDUs ... 302
    10.9 Multiple MAC Registration Protocol (MMRP)—Purpose.. 304
    10.10 MMRP Model of operation.. 305
    10.10.1 Propagation of Group Membership information 306
    10.10.2 Propagation of Group service requirement information . 307
    10.10.3 Source pruning 307
    10.10.4 Use of Group service requirement registration by end stations .. 307
    10.11 Default Group filtering behavior and MMRP propagation . 307
    10.12 Definition of the MMRP application . 309
    10.12.1 Definition of MRP elements . 309
    10.12.2 Provision and support of Extended Filtering Services 311
    10.12.3 Use of “new” declaration capability . 313
    10.12.4 Attribute value support requirements . 313
    10.12.5 Registrar Administrative Controls 313
11. VLAN topology management 314
    11.1 Static and dynamic VLAN configuration 314
    11.2 Multiple VLAN Registration Protocol (MVRP) . 315
    11.2.1 MVRP overview . 315
    11.2.2 VLAN registration service definition . 317
    11.2.3 Definition of the MVRP application . 318
    11.2.4 VID translation table . 321
    11.2.5 Use of “new” declaration capability . 321
    11.2.6 New-Only Participant and Registrar Administrative Controls ... 321
    11.2.7 Attribute value support requirements . 321
12. Bridge management . 322
    12.1 Management functions... 322
    12.1.1 Configuration Management .. 322
    12.1.2 Fault Management 323
    12.1.3 Performance Management 323
    12.1.4 Security Management . 323
    12.1.5 Accounting Management 323
    12.2 VLAN Bridge objects 323
    12.3 Data types 324
    12.4 Bridge Management Entity.. 325
    12.4.1 Bridge Configuration 325
    12.4.2 Port configuration . 328
    12.5 MAC entities 330
    12.5.1 ISS Port Number table managed object (optional) ... 330
    12.6 Forwarding process.. 331
    12.6.1 The Port Counters . 331
    12.6.2 Priority handling . 332
    12.6.3 Traffic Class Table 339
    12.7 Filtering Database (FDB). 340
    12.7.1 The Filtering Database object . 340
    12.7.2 A Static Filtering Entry object 341
    12.7.3 A Dynamic Filtering Entry object 341
    12.7.4 A MAC Address Registration Entry object .. 342
    12.7.5 A VLAN Registration Entry object .. 342
    12.7.6 Permanent Database object ... 342
    12.7.7 General FDB operations . 343
    12.8 Bridge Protocol Entity ... 345
    12.8.1 The Protocol Entity ... 345
    12.9 MRP Entities 352
    12.9.1 The MRP Timer object ... 352
    12.9.2 The MRP Attribute Type object . 353
    12.9.3 Periodic state machine objects 354
    12.10 Bridge VLAN managed objects. 354
    12.10.1 Bridge VLAN Configuration managed object 355
    12.10.2 VLAN Configuration managed object 360
    12.10.3 The VID to FID allocation managed object .. 361
    12.11 MMRP entities... 363
    12.11.1 MMRP Configuration managed object ... 363
    12.12 MST configuration entities .. 365
    12.12.1 The MSTI List 365
    12.12.2 The FID to MSTID Allocation Table . 366
    12.12.3 The MST Configuration Table ... 367
    12.13 Provider Bridge management 369
    12.13.1 Provider Bridge Port Type managed object .. 370
    12.13.2 Customer Edge Port Configuration managed object 371
    12.13.3 Remote Customer Access managed object ... 374
    12.14 CFM entities 376
    12.14.1 Maintenance Domain list managed object 376
    12.14.2 CFM Stack managed object .. 378
    12.14.3 Default MD Level managed object ... 379
    12.14.4 Configuration Error List managed object . 380
    12.14.5 Maintenance Domain managed object 381
    12.14.6 Maintenance Association managed object 383
    12.14.7 Maintenance association Endpoint managed object . 386
    12.15 Backbone Core Bridge (BCB) management 393
    12.16 Backbone Edge Bridge (BEB) management . 393
    12.16.1 BEB configuration managed object .. 395
    12.16.2 BEB/PB/VLAN Bridge Port configuration managed object 399
    12.16.3 VIP configuration managed object ... 399
    12.16.4 PIP configuration managed object 400
    12.16.5 CBP Configuration managed object . 407
    12.17 DDCFM entities. 410
    12.17.1 DDCFM Stack managed object .. 410
    12.17.2 Reflection Responder managed object ... 410
    12.17.3 RFM Receiver managed object ... 414
    12.17.4 Decapsulator Responder managed object . 415
    12.17.5 SFM Originator managed object . 417
    12.18 PBB-TE Protection Switching managed objects . 420
    12.18.1 TE protection group list managed object 420
    12.18.2 TE protection group managed object 421
    12.19 TPMR managed objects. 423
    12.19.1 TPMR management entity 424
    12.19.2 MAC and PHY entities ... 426
    12.19.3 Forwarding Process ... 426
    12.19.4 MAC Status Propagation Entity (MSPE) . 431
    12.20 Management entities for FQTSS . 433
    12.20.1 The Bandwidth Availability Parameter Table 433
    12.20.2 The Transmission Selection Algorithm Table 434
    12.20.3 The Priority Regeneration Override Table ... 434
    12.20.4 SR Class to Priority Mapping Table . 434
    12.21 Congestion Notification managed objects ... 435
    12.21.1 CN component managed object .. 435
    12.21.2 CN component priority managed object . 435
    12.21.3 CN Port priority managed object 437
    12.21.4 Congestion Point managed object . 438
    12.21.5 Reaction Point port priority managed object 438
    12.21.6 Reaction Point group managed object 439
    12.22 Stream Reservation Protocol (SRP) entities 439
    12.22.1 SRP Bridge Base Table ... 440
    12.22.2 SRP Bridge Port Table 440
    12.22.3 SRP Latency Parameter Table 441
    12.22.4 SRP Stream Table . 441
    12.22.5 SRP Reservations Table .. 441
    12.22.6 SRP Stream Preload Table 442
    12.22.7 SRP Reservations Preload Table 442
    12.23 Priority-based Flow Control objects 444
    12.24 1:1 PBB-TE IPS managed objects ... 444
    12.24.1 IPG list managed object .. 444
    12.24.2 IPG managed object .. 446
    12.25 Shortest Path Bridging managed objects . 448
    12.25.1 The SPB System managed object . 449
    12.25.2 The SPB MTID Static managed object ... 451
    12.25.3 The SPB Topology Instance Dynamic managed object . 453
    12.25.4 The SPB ECT Static Entry managed object . 453
    12.25.5 The SPB ECT Dynamic Entry managed object .. 455
    12.25.6 The SPB Adjacency Static Entry managed object 456
    12.25.7 The SPB Adjacency Dynamic Entry managed object 457
    12.25.8 The SPBM BSI Static Entry managed object . 457
    12.25.9 The SPB Topology Node Table managed object 459
    12.25.10 The SPB Topology ECT Table managed object . 460
    12.25.11 The SPB Topology Edge Table managed object 460
    12.25.12 The SPBM Topology Service Table managed object . 461
    12.25.13 The SPBV Topology Service Table managed object . 462
    12.25.14 The ECMP ECT Static Entry managed object 463
    12.26 Edge Virtual Bridging (EVB) management. 464
    12.26.1 EVB system base table ... 467
    12.26.2 SBP table entry ... 469
    12.26.3 VSI table entry 470
    12.26.4 S-channel configuration and management 471
    12.26.5 ER management .. 473
    12.27 Edge Control Protocol (ECP) management . 474
    12.27.1 ECP table entry ... 474
    12.28 Path Control and Reservation (PCR) management.. 475
    12.28.1 The PCR ECT Static Entry managed object . 476
    12.28.2 The PCR Topology ECT Table managed object 478
    12.29 Managed objects for scheduled traffic... 479
    12.29.1 The Gate Parameter Table 479
    12.29.2 Timing points for scheduled traffic .. 481
    12.30 Managed objects for frame preemption . 482
    12.30.1 Frame Preemption Parameter table ... 482
    12.31 Managed objects for per-stream classification and metering 484
    12.31.1 The Stream Parameter Table . 484
    12.31.2 The Stream Filter Instance Table 485
    12.31.3 The Stream Gate Instance Table . 487
    12.31.4 The Flow Meter Instance Table .. 490
    12.31.5 The Scheduler Instance Table . 490
    12.31.6 The Scheduler Group Instance Table 491
    12.31.7 The Scheduler Port Parameter Table 492
    12.31.8 The Scheduler Timing Characteristics Table 492
    12.32 Stream reservation remote management 494
    12.32.1 Bridge Delay . 494
    12.32.2 Propagation Delay . 496
    12.32.3 Static Trees ... 496
    12.32.4 MRP External Control 497
13. Spanning tree protocols . 501
    13.1 Protocol design requirements. 502
    13.2 Protocol support requirements ... 503
    13.2.1 MSTP support requirements . 503
    13.2.2 SPB support requirements 503
    13.3 Protocol design goals . 504
    13.4 RSTP overview .. 504
    13.4.1 Computation of the active topology .. 505
    13.4.2 Example topologies ... 506
    13.5 MSTP overview . 509
    13.5.1 Example topologies ... 510
    13.5.2 Relationship of MSTP to RSTP .. 513
    13.5.3 Modeling an MST or SPT Region as a single Bridge . 513
    13.6 SPB overview 514
    13.7 Compatibility and interoperability... 515
    13.7.1 Designated Port selection 515
    13.7.2 Force Protocol Version ... 515
    13.8 MST Configuration Identifier (MCID).. 516
    13.9 Spanning tree priority vectors 517
    13.10 CIST Priority Vector calculations 519
    13.11 MST Priority Vector calculations 521
    13.12 Port Role assignments 523
    13.13 Stable connectivity... 524
    13.14 Communicating spanning tree information . 525
    13.15 Changing spanning tree information 526
    13.16 Changing Port States with RSTP or MSTP . 527
    13.16.1 Subtree connectivity and priority vectors . 528
    13.16.2 Root Port transition to Forwarding ... 528
    13.16.3 Designated Port transition to Forwarding . 528
    13.16.4 Master Port transition to Forwarding 530
    13.17 Changing Port States with SPB . 532
    13.17.1 Agreement Digest . 534
    13.18 Managing spanning tree topologies . 535
    13.19 Updating learned station location information .. 536
    13.20 Managing reconfiguration 538
    13.21 Partial and disputed connectivity. 539
    13.22 In-service upgrades .. 539
    13.23 Fragile Bridges... 541
    13.24 Spanning tree protocol state machines... 541
    13.25 State machine timers 543
    13.25.1 edgeDelayWhile .. 544
    13.25.2 fdWhile ... 544
    13.25.3 helloWhen . 544
    13.25.4 mdelayWhile . 544
    13.25.5 rbWhile ... 544
    13.25.6 rcvdInfoWhile . 544
    13.25.7 rrWhile 545
    13.25.8 tcDetected . 545
    13.25.9 tcWhile 545
    13.25.10 pseudoInfoHelloWhen 545
    13.26 Per Bridge variables. 545
    13.26.1 agreementDigest . 546
    13.26.2 BridgeIdentifier ... 546
    13.26.3 BridgePriority . 546
    13.26.4 BridgeTimes .. 546
    13.26.5 ForceProtocolVersion . 547
    13.26.6 MigrateTime . 547
    13.26.7 MstConfigId .. 547
    13.26.8 AuxMstConfigId . 547
    13.26.9 rootPortId 547
    13.26.10 rootPriority 547
    13.26.11 rootTimes 547
    13.26.12 TxHoldCount 547
    13.27 Per port variables . 547
    13.27.1 AdminEdge ... 550
    13.27.2 ageingTime ... 550
    13.27.3 agree .. 550
    13.27.4 agreed 550
    13.27.5 agreedAbove . 550
    13.27.6 agreedDigest . 550
    13.27.7 agreedDigestValid 550
    13.27.8 agreeDigest ... 550
    13.27.9 agreeDigestValid 550
    13.27.10 agreedMisorder ... 551
    13.27.11 agreedN ... 551
    13.27.12 agreedND 551
    13.27.13 agreedPriority 551
    13.27.14 agreedTopology .. 551
    13.27.15 agreementOutstanding 551
    13.27.16 agreeN . 551
    13.27.17 agreeND .. 551
    13.27.18 AutoEdge 551
    13.27.19 AutoIsolate 552
    13.27.20 designatedPriority . 552
    13.27.21 designatedTimes . 552
    13.27.22 disputed ... 552
    13.27.23 enableBPDUrx 552
    13.27.24 enableBPDUtx 552
    13.27.25 ExternalPortPathCost 552
    13.27.26 isL2gp . 552
    13.27.27 isolate 553
    13.27.28 fdbFlush .. 553
    13.27.29 forward 553
    13.27.30 forwarding . 553
    13.27.31 infoInternal 553
    13.27.32 infoIs . 553
    13.27.33 InternalPortPathCost . 553
    13.27.34 learn .. 554
    13.27.35 learning ... 554
    13.27.36 master 554
    13.27.37 mastered .. 554
    13.27.38 mcheck 554
    13.27.39 msgPriority 554
    13.27.40 msgTimes 554
    13.27.41 neighbourPriority 555
    13.27.42 newInfo ... 555
    13.27.43 newInfoMsti .. 555
    13.27.44 operEdge . 555
    13.27.45 portEnabled ... 555
    13.27.46 portId . 555
    13.27.47 portPriority 555
    13.27.48 portTimes 556
    13.27.49 proposed .. 556
    13.27.50 proposing 556
    13.27.51 pseudoRootId 556
    13.27.52 rcvdBPDU . 556
    13.27.53 rcvdInfo ... 556
    13.27.54 rcvdInternal ... 556
    13.27.55 rcvdMsg .. 556
    13.27.56 rcvdRSTP 556
    13.27.57 rcvdSTP .. 556
    13.27.58 rcvdTc . 556
    13.27.59 rcvdTcAck 556
    13.27.60 rcvdTcn ... 557
    13.27.61 reRoot 557
    13.27.62 reselect 557
    13.27.63 restrictedDomainRole . 557
    13.27.64 restrictedRole 557
    13.27.65 restrictedTcn . 557
    13.27.66 role 557
    13.27.67 selected 557
    13.27.68 selectedRole .. 557
    13.27.69 sendRSTP 558
    13.27.70 sync ... 558
    13.27.71 synced . 558
    13.27.72 tcAck . 558
    13.27.73 tcProp 558
    13.27.74 tick 558
    13.27.75 txCount 558
    13.27.76 updtInfo ... 558
    13.28 State machine conditions and parameters 558
    13.28.1 allSptAgree ... 559
    13.28.2 allSynced . 559
    13.28.3 allTransmitReady 559
    13.28.4 BestAgreementPriority ... 559
    13.28.5 cist . 559
    13.28.6 cistRootPort .. 559
    13.28.7 cistDesignatedPort 560
    13.28.8 EdgeDelay . 560
    13.28.9 forwardDelay 560
    13.28.10 FwdDelay 560
    13.28.11 HelloTime . 560
    13.28.12 MaxAge .. 560
    13.28.13 msti 560
    13.28.14 mstiDesignatedOrTCpropagatingRootPort ... 560
    13.28.15 mstiMasterPort 560
    13.28.16 operPointToPoint 560
    13.28.17 rcvdAnyMsg . 560
    13.28.18 rcvdCistMsg .. 560
    13.28.19 rcvdMstiMsg . 561
    13.28.20 reRooted .. 561
    13.28.21 rstpVersion 561
    13.28.22 spt 561
    13.28.23 stpVersion . 561
    13.28.24 updtCistInfo .. 561
    13.28.25 updtMstiInfo . 561
    13.29 State machine procedures 561
    13.29.1 betterorsameInfo(newInfoIs) 562
    13.29.2 clearAllRcvdMsgs() .. 562
    13.29.3 clearReselectTree() ... 562
    13.29.4 disableForwarding() .. 563
    13.29.5 disableLearning() 563
    13.29.6 enableForwarding() ... 563
    13.29.7 enableLearning() . 563
    13.29.8 fromSameRegion() 563
    13.29.9 newTcDetected() . 563
    13.29.10 newTcWhile() . 563
    13.29.11 pseudoRcvMsgs() . 564
    13.29.12 rcvInfo() .. 564
    13.29.13 rcvMsgs() 565
    13.29.14 rcvAgreements() . 565
    13.29.15 recordAgreement() 565
    13.29.16 recordDispute() ... 566
    13.29.17 recordMastered() . 566
    13.29.18 recordPriority() ... 566
    13.29.19 recordProposal() .. 566
    13.29.20 recordTimes() 566
    13.29.21 setReRootTree() .. 567
    13.29.22 setSelectedTree() 567
    13.29.23 setSyncTree() 567
    13.29.24 setTcFlags() .. 567
    13.29.25 setTcPropTree() .. 567
    13.29.26 syncMaster() . 567
    13.29.27 txConfig() 567
    13.29.28 txRstp() ... 568
    13.29.29 txTcn() 568
    13.29.30 updtAgreement() . 568
    13.29.31 updtBPDUVersion() . 569
    13.29.32 updtDigest() .. 569
    13.29.33 updtRcvdInfoWhile() 570
    13.29.34 updtRolesTree() .. 571
    13.29.35 uptRolesDisabledTree() .. 572
    13.30 The Port Timers state machine .. 572
    13.31 Port Receive state machine .. 573
    13.32 Port Protocol Migration state machine .. 574
    13.33 Bridge Detection state machine . 574
    13.34 Port Transmit state machine 575
    13.35 Port Information state machine.. 576
    13.36 Port Role Selection state machine ... 577
    13.37 Port Role Transitions state machine 577
    13.38 Port State Transition state machine . 582
    13.38.1 Port State transitions for the CIST and MSTIs ... 583
    13.38.2 Port State transitions for SPTs 583
    13.39 Topology Change state machine 584
    13.40 Layer 2 Gateway Port Receive state machine ... 585
    13.41 CEP spanning tree operation 585
    13.41.1 PEP operPointToPointMAC and operEdge .. 585
    13.41.2 updtRolesTree() .. 586
    13.41.3 setReRootTree(), setSyncTree(), setTcPropTree() ... 586
    13.41.4 allSynced, reRooted .. 586
    13.41.5 Configuration parameters . 586
    13.42 Virtual Instance Port (VIP) spanning tree operation . 587
14. Encoding of Bridge Protocol Data Units (BPDUs) . 588
    14.1 BPDU Structure . 588
    14.1.1 Transmission and representation of octets 588
    14.1.2 Common BPDU fields 588
    14.2 Encoding of parameter types . 590
    14.2.1 Encoding of Protocol Identifiers . 590
    14.2.2 Encoding of Protocol Version Identifiers . 590
    14.2.3 Encoding of BPDU types 590
    14.2.4 Encoding of flags 590
    14.2.5 Encoding of Bridge Identifiers ... 590
    14.2.6 Encoding of External Root Path Cost and Internal Root Path Cost .. 591
    14.2.7 Encoding of Port Identifiers .. 591
    14.2.8 Encoding of Timer Values 591
    14.2.9 Encoding of Port Role values . 591
    14.2.10 Encoding of Length Values .. 592
    14.2.11 Encoding of Hop Counts . 592
    14.3 Transmission of BPDUs 592
    14.4 Encoding and decoding of STP Configuration, RST, MST, and SPT BPDUs.. 592
    14.4.1 MSTI Configuration Messages ... 594
    14.5 Validation of received BPDUs .. 595
    14.6 Validation and interoperability .. 596
15. Support of the MAC Service by PBNs .. 597
    15.1 Service transparency 597
    15.2 Customer service interfaces . 598
    15.3 Port-based service interface . 598
    15.4 C-tagged service interface ... 599
    15.5 S-tagged service interface 600
    15.6 Remote customer service interfaces (RCSIs) 601
    15.7 Service instance segregation 604
    15.8 Service instance selection and identification . 604
    15.9 Service priority selection . 605
    15.10 Service access protection . 605
16. Principles of Provider Bridged Network (PBN) operation.. 606
    16.1 PBN overview 606
    16.2 Provider Bridged Network (PBN) ... 607
    16.3 Service instance connectivity. 610
    16.4 Service provider learning of customer end station addresses 611
    16.5 Detection of connectivity loops through attached networks 611
    16.6 Network management 612
17. Management Information Base (MIB) .. 613
    17.1 Internet Standard Management Framework 613
    17.2 Structure of the MIB 613
    17.2.1 Structure of the IEEE8021-TC-MIB . 615
    17.2.2 Structure of the IEEE8021-BRIDGE-MIB ... 616
    17.2.3 Structure of the IEEE8021-SPANNING-TREE MIB 620
    17.2.4 Structure of the IEEE8021-Q-BRIDGE-MIB . 623
    17.2.5 Structure of the IEEE8021-PB-MIB . 628
    17.2.6 Structure of the IEEE8021-MSTP-MIB . 630
    17.2.7 Structure of the IEEE8021-CFM-MIB ... 633
    17.2.8 Structure of the IEEE8021-PBB-MIB 639
    17.2.9 Structure of the IEEE8021-DDCFM-MIBs .. 642
    17.2.10 Structure of the IEEE8021-PBBTE-MIB . 644
    17.2.11 Structure of the TPMR MIB . 647
    17.2.12 Structure of the IEEE8021-FQTSS-MIB 649
    17.2.13 Structure of the IEEE8021-CN-MIB 650
    17.2.14 Structure of the IEEE8021-SRP-MIB . 652
    17.2.15 Structure of the IEEE8021-MVRPX-MIB ... 654
    17.2.16 Structure of the IEEE8021-MIRP-MIB .. 654
    17.2.17 Structure of the IEEE8021-PFC-MIB . 655
    17.2.18 Structure of the IEEE8021-TEIPS-MIB . 655
    17.2.19 Structure of the IEEE8021-SPB-MIB . 657
    17.2.20 Structure of the IEEE8021-EVB-MIB 662
    17.2.21 Structure of the IEEE8021-ECMP-MIB . 666
    17.2.22 Structure of the IEEE8021-ST-MIB . 667
    17.2.23 Structure of the IEEE8021-Preemption-MIB . 668
    17.2.24 Structure of the IEEE8021-PSFP-MIB ... 668
    17.2.25 Structure of the IEEE8021-TSN-REMOTE-MANAGEMENT-MIB 671
    17.3 MIB module relationships ... 673
    17.3.1 Relationship of the IEEE8021-TC-MIB to other MIB modules . 673
    17.3.2 Relationship of the IEEE8021-BRIDGE-MIB to other MIB modules ... 673
    17.3.3 Relationship of the IEEE8021-RSTP MIB to other MIB modules .. 676
    17.3.4 Relationship of the IEEE8021-Q-BRIDGE-MIB to other MIB modules . 676
    17.3.5 Relationship of the IEEE8021-PB-BRIDGE MIB to other MIB modules ... 678
    17.3.6 Relationship of the IEEE8021-MSTP-MIB to other MIB modules . 678
    17.3.7 Relationship of the IEEE8021-CFM-MIB to other MIB modules ... 678
    17.3.8 Relationship of the IEEE8021-PBB-MIB to other MIB modules 679
    17.3.9 Relationship of the IEEE8021-DDCFM to other MIB modules 680
    17.3.10 Relationship of the IEEE8021-PBBTE-MIB to other MIB modules . 680
    17.3.11 Relationship of the IEEE8021-TPMR MIB to other MIB modules . 681
    17.3.12 Relationship of the IEEE8021-FQTSS-MIB to other MIB modules 681
    17.3.13 Relationship of the IEEE802-CN-MIB to other MIB modules .. 681
    17.3.14 Relationship of the IEEE8021-SRP-MIB to other MIB modules . 682
    17.3.15 Relationship of the IEEE8021-MVRPX-MIB to other MIB modules ... 682
    17.3.16 Relationship of the IEEE8021-MIRP-MIB to other MIB modules .. 682
    17.3.17 Relationship of the IEEE8021-PFC-MIB to other MIB modules . 682
    17.3.18 Relationship of the IEEE8021-TEIPS-MIB to other MIB modules . 683
    17.3.19 Relationship of the IEEE8021-SPB-MIB to other MIB modules . 683
    17.3.20 Relationship of the IEEE8021-EVB-MIB to other MIB modules 683
    17.3.21 Relationship of the IEEE8021-ECMP-MIB to other MIB modules . 683
    17.3.22 Relationship of the IEEE8021-ST-MIB to other MIB modules . 683
    17.3.23 Relationship of the IEEE8021-Preemption-MIB to other MIB modules . 684
    17.3.24 Relationship of IEEE8021-PSFP-MIB to other MIB modules ... 684
    17.3.25 Relationship of IEEE8021-TSN-REMOTE-MANAGEMENT-MIB to other MIB
    modules ... 684
    17.4 Security considerations .. 684
    17.4.1 Security considerations of the IEEE8021-TC-MIB .. 684
    17.4.2 Security considerations of the IEEE8021-BRIDGE-MIB 685
    17.4.3 Security considerations of the IEEE8021-SPANNING-TREE MIB 686
    17.4.4 Security considerations of the IEEE8021-Q-BRIDGE-MIB 686
    17.4.5 Security considerations of the IEEE8021-PB-MIB .. 687
    17.4.6 Security considerations of the IEEE8021-MSTP-MIB .. 687
    17.4.7 Security considerations of the IEEE8021-CFM-MIB 688
    17.4.8 Security considerations of the IEEE8021-PBB-MIB . 690
    17.4.9 Security considerations of the IEEE8021-DDCFM-MIB . 691
    17.4.10 Security considerations of the IEEE8021-PBBTE-MIB 691
    17.4.11 Security considerations of the IEEE8021-TPMR-MIB .. 692
    17.4.12 Security considerations of the IEEE8021-FQTSS-MIB . 692
    17.4.13 Security considerations of the IEEE8021-CN-MIB . 693
    17.4.14 Security considerations of the IEEE8021-SRP-MIB 695
    17.4.15 Security considerations of the IEEE8021-MVRPX-MIB . 695
    17.4.16 Security considerations of the IEEE8021-MIRP-MIB ... 696
    17.4.17 Security considerations of the IEEE8021-PFC-MIB 696
    17.4.18 Security considerations of the IEEE8021-TEIPS-MIB .. 696
    17.4.19 Security considerations of the IEEE8021-SPB-MIB 697
    17.4.20 Security considerations of the IEEE8021-EVB-MIB . 697
    17.4.21 Security considerations of the IEEE8021-ECMP-MIB .. 699
    17.4.22 Security considerations of the IEEE8021-ST-MIB .. 699
    17.4.23 Security considerations of the IEEE8021-Preemption-MIB 700
    17.4.24 Security considerations of the IEEE8021-PSFP-MIB 700
    17.4.25 Security considerations of the IEEE8021-TSN-REMOTE-MANAGEMENT-MIB
    702
    17.5 Dynamic component and Port creation.. 703
    17.5.1 Overview of the dynamically created Bridge entities . 703
    17.5.2 Component creation .. 704
    17.5.3 Port creation .. 705
    17.6 MIB operations for service interface configuration. 715
    17.6.1 Provisioning PBN service interfaces 715
    17.6.2 Provisioning Backbone Bridged Network service interfaces . 718
    17.7 MIB modules 724
    17.7.1 Definitions for the IEEE8021-TC-MIB module . 724
    17.7.2 Definitions for the IEEE8021-BRIDGE-MIB module ... 733
    17.7.3 Definitions for the IEEE8021-SPANNING-TREE-MIB module 766
    17.7.4 Definitions for the IEEE8021-Q-BRIDGE-MIB module . 781
    17.7.5 Definitions for the IEEE8021-PB-MIB module . 819
    17.7.6 Definitions for the IEEE8021-MSTP-MIB module .. 834
    17.7.7 Definitions for the CFM MIB modules .. 858
    17.7.8 Definitions for the IEEE8021-PBB-MIB module 926
    17.7.9 Definitions for the IEEE8021-DDCFM-MIB module 945
    17.7.10 Definitions for the IEEE8021-PBBTE-MIB module 960
    17.7.11 Definitions for the IEEE8021-TPMR-MIB module . 974
    17.7.12 Definitions for the IEEE8021-FQTSS-MIB module 986
    17.7.13 Definitions for the IEEE8021-CN-MIB module 998
    17.7.14 Definitions for the IEEE8021-SRP-MIB module ... 1028
    17.7.15 Definitions for the IEEE8021-MVRPX-MIB module .. 1046
    17.7.16 Definitions for the IEEE8021-MIRP-MIB module 1050
    17.7.17 Definitions for the IEEE8021-PFC-MIB module ... 1055
    17.7.18 Definitions for the IEEE8021-TEIPS-V2-MIB module . 1058
    17.7.19 Definitions for the IEEE8021-SPB-MIB module ... 1070
    17.7.20 Definitions for the IEEE8021-EVB-MIB module .. 1106
    17.7.21 Definitions for the IEEE8021-ECMP-MIB module . 1130
    17.7.22 Definitions for the IEEE8021-ST-MIB module . 1137
    17.7.23 Definitions for the IEEE8021-Preemption-MIB module 1148
    17.7.24 Definitions for the IEEE8021-PSFP-MIB module . 1153
    17.7.25 Definitions for the IEEE8021-TSN-REMOTE-MANAGEMENT-MIB module
    1173
18. Principles of Connectivity Fault Management operation .. 1182
    18.1 Maintenance Domains and DoSAPs 1183
    18.2 Service instances and MAs 1185
    18.3 Maintenance Domain Levels ... 1186
19. CFM entity operation... 1190
    19.1 Maintenance Points (MPs). 1190
    19.2 MA Endpoints (MEPs) 1190
    19.2.1 MEP identification .. 1190
    19.2.2 MEP functions .. 1192
    19.2.3 MEP architecture 1192
    19.2.4 MP Type Demultiplexer . 1194
    19.2.5 MP Multiplexer . 1194
    19.2.6 MP Level Demultiplexer 1194
    19.2.7 MP OpCode Demultiplexer 1194
    19.2.8 MEP Continuity Check Receiver 1194
    19.2.9 MEP Continuity Check Initiator . 1195
    19.2.10 MP Loopback Responder 1195
    19.2.11 MEP Loopback Initiator . 1196
    19.2.12 MEP Linktrace Initiator 1196
    19.2.13 MEP LTI SAP ... 1196
    19.2.14 MEP Linktrace SAP 1196
    19.2.15 MEP CCM Database . 1196
    19.2.16 MEP Fault Notification Generator .. 1196
    19.2.17 MEP Decapsulator Responder (DR) . 1196
    19.2.18 MEP RFM Receiver 1197
    19.3 MIP Half Function . 1197
    19.3.1 MHF identification . 1197
    19.3.2 MHF functions .. 1197
    19.3.3 MHF architecture 1198
    19.3.4 MHF Level Demultiplexer .. 1198
    19.3.5 MHF Type Demultiplexer .. 1199
    19.3.6 MHF OpCode Demultiplexer ... 1199
    19.3.7 MHF Multiplexer 1199
    19.3.8 MHF Loopback Responder . 1199
    19.3.9 MHF Continuity Check Receiver ... 1199
    19.3.10 MIP CCM Database 1199
    19.3.11 MHF Linktrace SAP . 1199
    19.3.12 MHF DR . 1199
    19.3.13 MHF RFM Receiver . 1199
    19.4 MP addressing.. 1200
    19.5 Linktrace Output Multiplexer (LOM).. 1200
    19.6 Linktrace Responder 1201
20. CFM protocols . 1203
    20.1 Continuity Check protocol. 1204
    20.1.1 MAC status reporting in the CCM .. 1206
    20.1.2 Defects and Fault Alarms ... 1206
    20.1.3 CCM reception .. 1206
    20.2 Loopback protocol . 1207
    20.2.1 LBM transmission ... 1207
    20.2.2 LBM reception and LBR transmission . 1208
    20.2.3 LBR reception ... 1209
    20.3 Linktrace protocol.. 1209
    20.3.1 LTM origination . 1210
    20.3.2 LTM reception, forwarding, and replying .. 1211
    20.3.3 LTR reception ... 1212
    20.4 CFM state machines. 1213
    20.5 CFM state machine timers . 1213
    20.5.1 LTFwhile 1213
    20.5.2 CCIwhile . 1213
    20.5.3 errorCCMwhile . 1214
    20.5.4 xconCCMwhile . 1215
    20.5.5 LBIwhile . 1215
    20.5.6 FNGwhile 1215
    20.5.7 mmCCMwhile .. 1215
    20.5.8 mmLocwhile . 1215
    20.5.9 mmFNGwhile ... 1215
    20.5.10 rMEPwhile .. 1215
    20.6 CFM procedures 1215
    20.6.1 CCMtime() .. 1215
    20.7 Maintenance Domain variable . 1216
    20.7.1 mdLevel 1216
    20.8 MA variables 1216
    20.8.1 CCMinterval . 1216
    20.9 MEP variables.. 1216
    20.9.1 MEPactive ... 1217
    20.9.2 enableRmepDefect .. 1217
    20.9.3 MAdefectIndication 1217
    20.9.4 allRMEPsDead .. 1218
    20.9.5 lowestAlarmPri . 1218
    20.9.6 presentRDI .. 1218
    20.9.7 MEPprimaryVID 1218
    20.9.8 presentTraffic 1218
    20.9.9 presentmmLoc .. 1218
    20.9.10 ISpresentTraffic 1218
    20.9.11 ISpresentmmLoc . 1218
    20.9.12 EpMEP .. 1219
    20.10 MEP Continuity Check Initiator variables. 1219
    20.10.1 CCIenabled . 1219
    20.10.2 CCIsentCCMs ... 1219
    20.10.3 MACstatusChanged 1219
    20.10.4 Npaths ... 1219
    20.10.5 flowHash[ ] . 1219
    20.10.6 pathN . 1219
    20.10.7 CCMcnt . 1220
    20.11 MEP Continuity Check Initiator procedures ... 1220
    20.11.1 xmitCCM() .. 1220
    20.12 MEP Continuity Check Initiator state machine . 1221
    20.13 MHF Continuity Check Receiver variables. 1221
    20.13.1 MHFrecvdCCM 1221
    20.13.2 MHFCCMPDU . 1221
    20.14 MHF Continuity Check Receiver procedures.. 1222
    20.14.1 MHFprocessCCM() 1222
    20.15 MHF Continuity Check Receiver state machine ... 1222
    20.16 MEP Continuity Check Receiver variables . 1222
    20.16.1 CCMreceivedEqual . 1223
    20.16.2 CCMequalPDU . 1223
    20.16.3 CCMreceivedLow ... 1223
    20.16.4 CCMlowPDU 1223
    20.16.5 recvdMacAddress ... 1223
    20.16.6 recvdRDI . 1223
    20.16.7 recvdInterval . 1223
    20.16.8 recvdPortState ... 1223
    20.16.9 recvdInterfaceStatus 1223
    20.16.10 recvdSenderId ... 1224
    20.16.11 recvdFrame . 1224
    20.16.12 CCMsequenceErrors . 1224
    20.16.13 rcvdTrafficBit ... 1224
    20.17 MEP Continuity Check Receiver procedures .. 1224
    20.17.1 MEPprocessEqualCCM() ... 1224
    20.17.2 MEPprocessLowCCM() . 1225
    20.18 MEP Continuity Check Receiver state machine 1225
    20.19 Remote MEP variables 1225
    20.19.1 rMEPCCMdefect 1226
    20.19.2 rMEPlastRDI and rMEPlastRDI[i] . 1226
    20.19.3 rMEPlastPortState ... 1226
    20.19.4 rMEPlastInterfaceStatus . 1226
    20.19.5 rMEPlastSenderId ... 1227
    20.19.6 rCCMreceived ... 1227
    20.19.7 rMEPmacAddress ... 1227
    20.19.8 rMEPportStatusDefect .. 1227
    20.19.9 rMEPinterfaceStatusDefect 1227
    20.19.10 lastPathN . 1227
    20.20 Remote MEP state machine. 1227
    20.21 Remote MEP Error variables... 1227
    20.21.1 errorCCMreceived .. 1228
    20.21.2 errorCCMlastFailure . 1228
    20.21.3 errorCCMdefect 1229
    20.22 Remote MEP Error state machine . 1229
    20.23 MEP Cross Connect variables . 1229
    20.23.1 xconCCMreceived .. 1229
    20.23.2 xconCCMlastFailure . 1229
    20.23.3 xconCCMdefect 1230
    20.24 MEP Cross Connect state machine 1230
    20.25 MEP Mismatch variables... 1230
    20.25.1 mmCCMreceived 1230
    20.25.2 mmCCMdefect .. 1231
    20.25.3 mmCCMTime ... 1231
    20.25.4 disableLocdefect . 1231
    20.25.5 mmLocdefect 1231
    20.26 MEP Mismatch state machines 1231
    20.27 MP Loopback Responder variables . 1231
    20.27.1 LBMreceived 1231
    20.27.2 LBMPDU 1232
    20.28 MP Loopback Responder procedures .. 1233
    20.28.1 ProcessLBM() ... 1233
    20.28.2 xmitLBR() ... 1233
    20.29 MP Loopback Responder state machine 1234
    20.30 MEP Loopback Initiator variables. 1234
    20.30.1 LBMsToSend 1235
    20.30.2 nextLBMtransID . 1235
    20.30.3 expectedLBRtransID 1235
    20.30.4 LBIactive 1235
    20.30.5 xmitReady ... 1235
    20.30.6 LBRreceived . 1235
    20.30.7 LBRPDU . 1235
    20.31 MEP Loopback Initiator transmit procedures.. 1235
    20.31.1 xmitLBM() .. 1236
    20.32 MEP Loopback Initiator transmit state machine ... 1236
    20.33 MEP Loopback Initiator receive procedures ... 1236
    20.33.1 ProcessLBR() 1237
    20.34 MEP Loopback Initiator receive state machine. 1238
    20.35 MEP Fault Notification Generator variables ... 1238
    20.35.1 fngPriority ... 1238
    20.35.2 fngDefect 1238
    20.35.3 fngAlarmTime .. 1238
    20.35.4 fngResetTime 1239
    20.35.5 someRMEPCCMdefect 1239
    20.35.6 someMACstatusDefect . 1239
    20.35.7 someRDIdefect . 1239
    20.35.8 highestDefectPri 1239
    20.35.9 highestDefect 1239
    20.36 MEP Fault Notification Generator procedures 1239
    20.36.1 xmitFaultAlarm() 1240
    20.37 MEP Fault Notification Generator state machine.. 1240
    20.38 MEP Mismatch Fault Notification Generator variables 1240
    20.38.1 mfngAllowed 1241
    20.38.2 mmdefectIndication 1241
    20.38.3 mfngAlarmTime . 1241
    20.38.4 mfngResetTime . 1241
    20.39 MEP Mismatch Fault Notification Generator procedures . 1241
    20.39.1 xmitFaultAlarm() 1241
    20.40 MEP Mismatch Fault Notification Generator state machine... 1241
    20.41 MEP Linktrace Initiator variables.. 1241
    20.41.1 nextLTMtransID . 1242
    20.41.2 ltmReplyList . 1242
    20.42 MEP Linktrace Initiator procedures 1244
    20.42.1 xmitLTM() .. 1244
    20.43 MEP Linktrace Initiator receive variables . 1245
    20.43.1 LTRreceived . 1245
    20.43.2 LTRPDU . 1245
    20.44 MEP Linktrace Initiator receive procedures 1245
    20.44.1 ProcessLTR() 1246
    20.45 MEP Linktrace Initiator receive state machine 1246
    20.46 Linktrace Responder variables. 1246
    20.46.1 nPendingLTRs .. 1246
    20.46.2 LTMreceived 1247
    20.46.3 LTMPDU 1247
    20.47 LTM Receiver procedures . 1247
    20.47.1 ProcessLTM() ... 1247
    20.47.2 clearPendingLTRs() 1251
    20.47.3 ForwardLTM() .. 1251
    20.47.4 enqueLTR() . 1252
    20.48 LTM Receiver state machine... 1254
    20.49 LTR Transmitter procedure . 1254
    20.49.1 xmitOldestLTR() 1254
    20.50 LTR Transmitter state machine . 1254
    20.51 CFM PDU validation and versioning .. 1254
    20.51.1 Goals of CFM PDU versioning 1255
    20.51.2 PDU transmission ... 1255
    20.51.3 PDU validation . 1256
    20.51.4 Validation pass .. 1256
    20.51.5 Execution pass .. 1257
    20.51.6 Future extensions 1258
    20.52 PDU identification . 1258
    20.53 Use of transaction IDs and sequence numbers 1258
21. Encoding of CFM PDUs 1260
    21.1 Structure, representation, and encoding. 1260
    21.2 CFM encapsulation 1260
    21.3 CFM request and indication parameters 1261
    21.3.1 destination_address parameter .. 1261
    21.3.2 source_address parameter ... 1261
    21.4 Common CFM Header. 1261
    21.4.1 MD Level 1261
    21.4.2 Version .. 1261
    21.4.3 OpCode . 1262
    21.4.4 Flags 1262
    21.4.5 First TLV Offset . 1263
    21.5 TLV format 1263
    21.5.1 General format for CFM TLVs . 1263
    21.5.2 Organization-Specific TLV 1263
    21.5.3 Sender ID TLV . 1265
    21.5.4 Port Status TLV 1266
    21.5.5 Interface Status TLV . 1267
    21.5.6 Data TLV 1268
    21.5.7 End TLV . 1268
    21.6 CCM format. 1268
    21.6.1 Flags 1269
    21.6.2 First TLV Offset . 1270
    21.6.3 Sequence Number ... 1270
    21.6.4 Maintenance association Endpoint Identifier ... 1270
    21.6.5 Maintenance Association Identifier 1270
    21.6.6 Defined by ITU-T G.8013/Y.1731 . 1273
    21.6.7 Optional CCM TLVs 1273
    21.7 LBM and LBR formats 1273
    21.7.1 Flags 1274
    21.7.2 First TLV Offset . 1274
    21.7.3 Loopback Transaction Identifier . 1274
    21.7.4 Additional LBM/LBR TLVs 1274
    21.7.5 PBB-TE MIP TLV .. 1274
    21.8 LTM format . 1275
    21.8.1 Flags 1276
    21.8.2 First TLV Offset . 1276
    21.8.3 LTM Transaction Identifier 1276
    21.8.4 LTM TTL 1276
    21.8.5 Original MAC Address . 1276
    21.8.6 Target MAC Address 1276
    21.8.7 Additional LTM TLVs .. 1277
    21.8.8 LTM Egress Identifier TLV 1277
    21.9 LTR format 1277
    21.9.1 Flags 1277
    21.9.2 First TLV Offset . 1278
    21.9.3 LTR Transaction Identifier . 1278
    21.9.4 Reply TTL ... 1278
    21.9.5 Relay Action . 1279
    21.9.6 Additional LTR TLVs .. 1279
    21.9.7 LTR Egress Identifier TLV . 1279
    21.9.8 Reply Ingress TLV .. 1280
    21.9.9 Reply Egress TLV .. 1281
22. CFM in systems . 1283
    22.1 CFM shims in Bridges . 1283
    22.1.1 Preliminary positioning of MPs 1283
    22.1.2 CFM and the Forwarding Process .. 1284
    22.1.3 Up/Down separation of MPs . 1286
    22.1.4 Service instances over multiple Bridges . 1288
    22.1.5 Multiple VID service instances . 1290
    22.1.6 Untagged CFM PDUs ... 1290
    22.1.7 MPs and non-VLAN-aware Bridges . 1290
    22.1.8 MPs and other standards . 1291
    22.1.9 CFM and IEEE 802.3 OAM . 1293
    22.2 Maintenance Entity creation 1293
    22.2.1 Creating Maintenance Domains and MAs .. 1294
    22.2.2 Creating MEPs .. 1294
    22.2.3 Creating MIPs ... 1296
    22.2.4 CFM configuration errors ... 1297
    22.3 MPs, Ports, and MD Level assignment 1298
    22.4 Stations and CFM .. 1298
    22.5 Scalability of CFM. 1299
    22.6 CFM in Provider Bridges... 1300
    22.6.1 MPs and C-VLAN components 1300
    22.6.2 Maintenance C-VLAN on a Port-based service interface .. 1300
    22.6.3 Maintenance C-VLAN on a C-tagged service interface . 1302
    22.6.4 MPs and Port-mapping S-VLAN components . 1302
    22.7 Management Port MEPs and CFM in the enterprise environment 1304
    22.8 Implementing CFM on Bridges that implement earlier revisions of IEEE Std 802.1Q 1306
23. MAC status propagation 1307
    23.1 Model of operation. 1309
    23.1.1 MAC Status Shim (MSS) ... 1310
    23.1.2 Relationship of CFM to the MSS ... 1310
    23.2 MAC Status Protocol (MSP) overview . 1310
    23.3 MSP state machines . 1315
    23.4 State machine timers 1316
    23.4.1 linkNotifyWhen 1316
    23.4.2 linkNotifyWhile 1316
    23.4.3 macNotifyWhile 1316
    23.4.4 macRecoverWhile ... 1316
    23.5 MSP performance parameters.. 1316
    23.5.1 LinkNotify .. 1317
    23.5.2 LinkNotifyWait . 1317
    23.5.3 LinkNotifyRetry 1317
    23.5.4 MACNotify . 1317
    23.5.5 MACNotifyTime 1317
    23.5.6 MACRecoverTime .. 1317
    23.6 State machine variables . 1317
    23.6.1 BEGIN .. 1317
    23.6.2 addConfirmed ... 1317
    23.6.3 disableMAC 1317
    23.6.4 disabledMAC 1317
    23.6.5 disableMSS . 1317
    23.6.6 lossConfirmed ... 1317
    23.6.7 macOperational . 1318
    23.6.8 mssOperational . 1318
    23.6.9 prop . 1318
    23.6.10 rxAck 1318
    23.6.11 rxAdd 1318
    23.6.12 rxAddConfirm ... 1318
    23.6.13 rxLoss 1318
    23.6.14 rxLossConfirm .. 1318
    23.6.15 txAck . 1318
    23.6.16 txAdd 1318
    23.6.17 txAddConfirm ... 1318
    23.6.18 txLoss 1318
    23.6.19 txLossConfirm .. 1318
    23.7 State machine procedures .. 1319
    23.8 Status Transition state machine (STM) . 1319
    23.9 Status Notification state machine (SNM) .. 1319
    23.10 Receive Process . 1319
    23.11 Transmit Process 1319
    23.12 Management of MSP ... 1320
    23.13 MSPDU transmission, addressing, and protocol identification. 1321
    23.13.1 Destination MAC Address .. 1321
    23.13.2 Source MAC Address ... 1321
    23.13.3 Priority .. 1321
    23.13.4 EtherType use and encoding . 1321
    23.14 Representation and encoding of octets 1322
    23.15 MSPDU structure... 1322
    23.15.1 Protocol Version . 1322
    23.15.2 Packet Type . 1322
    23.16 Validation of received MSPDUs ... 1323
    23.17 Other MSP participants 1323
24. Bridge performance . 1324
    24.1 Guaranteed Port Filtering Rate 1324
    24.2 Guaranteed Bridge Relaying Rate . 1324
    24.3 RSTP performance requirements... 1324
25. Support of the MAC Service by PBBNs ... 1326
    25.1 Service transparency 1328
    25.2 Customer service interface. 1328
    25.3 Port-based service interface . 1329
    25.4 S-tagged service interface.. 1330
    25.5 I-tagged service interface... 1332
    25.6 Service instance segregation 1334
    25.7 Service instance selection and identification ... 1334
    25.8 Service priority and drop eligibility selection.. 1334
    25.9 Service access protection ... 1335
    25.9.1 Class II redundant LANs access protection 1337
    25.9.2 Class III simple redundant LANs and nodes access protection 1337
    25.10 Support of the MAC Service by a PBB-TE Region 1338
    25.10.1 Provisioning TESIs . 1339
    25.10.2 ESP forwarding behavior 1341
    25.11 Transparent service interface ... 1342
26. Principles of Provider Backbone Bridged Network (PBBN) operation 1344
    26.1 PBBN overview . 1344
    26.2 PBBN example 1345
    26.3 B-VLAN connectivity.. 1347
    26.4 Backbone addressing ... 1347
    26.4.1 Learning individual backbone addresses at a PIP ... 1348
    26.4.2 Translating backbone destination addresses at a CBP .. 1349
    26.4.3 Backbone addressing considerations for CFM MPs . 1349
    26.5 Detection of connectivity loops through attached networks 1350
    26.6 Scaling of PBBs . 1350
    26.6.1 Hierarchal PBBNs ... 1350
    26.6.2 Peer PBBNs 1351
    26.7 Network management .. 1351
    26.8 CFM in PBBs... 1351
    26.8.1 CFM over Port-based and S-tagged service interfaces . 1356
    26.8.2 CFM over I-tagged Service Interfaces .. 1357
    26.8.3 CFM over hierarchal E-NNI . 1357
    26.8.4 CFM over peer E-NNI .. 1358
    26.9 CFM in a PBB-TE Region. 1358
    26.9.1 Addressing PBB-TE MEPs . 1359
    26.9.2 TESI identification .. 1359
    26.9.3 PBB-TE MEP placement in a Bridge Port .. 1359
    26.9.4 PBB-TE MIP placement in a Bridge Port ... 1360
    26.9.5 TESI Maintenance Domains . 1360
    26.9.6 PBB-TE enhancements of the CFM protocols . 1360
    26.9.7 Addressing Infrastructure Segment MEPs .. 1362
    26.9.8 Infrastructure Segment identification ... 1363
    26.9.9 Infrastructure Segment MEP placement in a Bridge Port ... 1363
    26.9.10 Infrastructure Segment Maintenance Domains . 1365
    26.9.11 IPS extensions to Continuity Check operation . 1365
    26.10 Protection switching for point-to-point TESIs. 1365
    26.10.1 Introduction . 1365
    26.10.2 1:1 point-to-point TESI protection switching ... 1366
    26.10.3 Protection Switching state machines 1369
    26.11 IPS in PBB-TE Region 1375
    26.11.1 Infrastructure Segment monitoring . 1376
    26.11.2 1:1 IPS ... 1376
    26.11.3 IPS Control entity ... 1379
    26.11.4 1:1 IPS state machines .. 1380
    26.11.5 M:1 IPS . 1381
    26.12 Mismatch defect. 1386
    26.13 Signaling VLAN registrations among I-components .. 1387
27. Shortest Path Bridging (SPB) .. 1388
    27.1 Protocol design requirements... 1390
    27.2 Protocol support. 1391
    27.3 Protocol design goals ... 1392
    27.4 ISIS-SPB VLAN configuration . 1392
    27.4.1 SPT Region and ISIS-SPB adjacency determination ... 1393
    27.5 ISIS-SPB information .. 1395
    27.6 Calculating CIST connectivity. 1396
    27.7 Connectivity between regions in the same domain . 1397
    27.8 Calculating SPT connectivity .. 1397
    27.8.1 ISIS-SPB overload .. 1398
    27.9 Loop prevention. 1398
    27.10 SPVID and SPSourceID allocation 1398
    27.11 Allocation of VIDs to FIDs . 1400
    27.12 SPBV SPVID translation ... 1401
    27.13 VLAN topology management.. 1401
    27.14 Individual addresses and SPBM 1402
    27.14.1 Loop mitigation . 1403
    27.14.2 Loop prevention 1403
    27.15 SPBM group addressing 1403
    27.16 Backbone service instance topology management 1405
    27.17 Equal cost shortest paths, ECTs, and load spreading .. 1406
    27.18 Connectivity Fault Management for SPBM 1406
    27.18.1 SPBM MA types . 1406
    27.18.2 SPBM MEP placement in a Bridge Port . 1407
    27.18.3 SPBM MIP placement in a Bridge Port 1408
    27.18.4 SPBM modifications of the CFM protocols . 1408
    27.19 Using SPBV and SPBM modes . 1409
    27.19.1 Shortest Path Bridging—VID ... 1409
    27.19.2 Shortest Path Bridging—MAC . 1410
    27.20 Security considerations 1412
28. ISIS-SPB Link State Protocol.. 1413
    28.1 ISIS-SPB control plane MAC.. 1413
    28.2 Formation and maintenance of ISIS-SPB adjacencies 1414
    28.3 Loop prevention. 1415
    28.4 The Agreement Digest . 1415
    28.4.1 Agreement Digest Format Identifier . 1415
    28.4.2 Agreement Digest Format Capabilities . 1416
    28.4.3 Agreement Digest Convention Identifier 1416
    28.4.4 Agreement Digest Convention Capabilities . 1416
    28.4.5 Agreement Digest Edge Count . 1417
    28.4.6 The Computed Topology Digest . 1417
    28.5 Symmetric shortest path tie breaking... 1418
    28.6 Symmetric ECT framework. 1419
    28.7 Symmetric ECT . 1420
    28.8 Symmetric ECT Algorithm details 1421
    28.9 ECT Migration. 1422
    28.9.1 Use of a new ECT Algorithm in SPBV 1422
    28.9.2 Use of a new ECT Algorithm in SPBM . 1423
    28.10 MAC address registration .. 1424
    28.11 Circuit IDs and Port Identifiers 1424
    28.12 ISIS-SPB TLVs 1424
    28.12.1 MT-Capability TLV 1425
    28.12.2 SPB MCID sub-TLV 1425
    28.12.3 SPB Digest sub-TLV 1426
    28.12.4 SPB Base VLAN-Identifiers sub-TLV . 1427
    28.12.5 SPB Instance sub-TLV . 1428
    28.12.6 SPB Instance Opaque ECT Algorithm sub-TLV 1429
    28.12.7 SPB Link Metric sub-TLV . 1431
    28.12.8 SPB Adjacency Opaque ECT Algorithm sub-TLV 1431
    28.12.9 SPBV MAC address sub-TLV .. 1432
    28.12.10 SPBM Service Identifier and Unicast Address (ISID-ADDR) sub-TLV ... 1433
29. DDCFM operations and protocols. 1436
    29.1 Principles of DDCFM operation 1436
    29.1.1 Data-driven and data-dependent faults (DDFs) 1436
    29.1.2 Basic principle to diagnose and isolate DDFs .. 1436
    29.2 DDCFM Entity operation .. 1439
    29.2.1 DDCFM implementation 1439
    29.2.2 FPT RR . 1440
    29.2.3 RR-related parameters .. 1441
    29.2.4 Reflection Target and RFM Receiver ... 1442
    29.2.5 RPT-related parameters 1442
    29.2.6 Decapsulator Responder (DR) .. 1443
    29.2.7 SFM Originator . 1444
    29.3 DDCFM protocols . 1444
    29.3.1 RR variables 1444
    29.3.2 RR Filter procedures . 1446
    29.3.3 RR Encapsulation procedures ... 1447
    29.3.4 RR Transmit procedure . 1448
    29.3.5 RR-related state machines .. 1449
    29.3.6 RFM Receiver variables . 1450
    29.3.7 RFM Receiver procedure 1451
    29.3.8 DR variables . 1452
    29.3.9 DR procedures .. 1452
    29.3.10 Decapsulator Responder state machine 1454
    29.4 Encoding of DDCFM PDUs 1454
    29.4.1 RFM and SFM Header .. 1454
    29.4.2 RFM format 1454
    29.4.3 SFM format . 1455
30. Principles of congestion notification ... 1457
    30.1 Congestion notification design requirements .. 1457
    30.2 Quantized Congestion Notification protocol (QCN) ... 1459
    30.2.1 The CP algorithm 1460
    30.2.2 Basic RP algorithm . 1461
    30.2.3 RP algorithm with timer . 1462
    30.3 Congestion Controlled Flow (CCF). 1463
    30.4 Congestion Notification Priority Value (CNPV)... 1464
    30.5 Congestion Notification tag (CN-TAG) 1464
    30.6 Congestion Notification Domain (CND)... 1464
    30.7 Multicast data... 1465
    30.8 Congestion notification and additional tags. 1465
31. Congestion notification entity operation 1467
    31.1 Congestion-aware Bridge Forwarding Process 1467
    31.1.1 Congestion Point (CP) .. 1468
    31.1.2 CP ingress multiplexer .. 1468
    31.2 Congestion-aware end station functions 1468
    31.2.1 Output flow segregation 1470
    31.2.2 Per-CNPV station function . 1470
    31.2.3 Flow Select Database 1472
    31.2.4 Flow multiplexer . 1472
    31.2.5 CNM demultiplexer 1472
    31.2.6 Input flow segregation .. 1473
    31.2.7 End station input queue . 1473
    31.2.8 Reception selection . 1473
32. Congestion notification protocol ... 1474
    32.1 CND operations . 1474
    32.1.1 CND defense . 1474
    32.1.2 Automatic CND recognition . 1476
    32.1.3 Variables controlling CND defense 1476
    32.2 CN component variables 1477
    32.2.1 cngMasterEnable 1478
    32.2.2 cngCnmTransmitPriority 1478
    32.2.3 cngDiscardedFrames . 1478
    32.2.4 cngErroredPortList .. 1478
    32.3 Congestion notification per-CNPV variables .. 1478
    32.3.1 cncpDefModeChoice 1478
    32.3.2 cncpAlternatePriority 1479
    32.3.3 cncpAutoAltPri . 1479
    32.3.4 cncpAdminDefenseMode ... 1479
    32.3.5 cncpCreation . 1479
    32.3.6 cncpLldpInstanceChoice . 1479
    32.3.7 cncpLldpInstanceSelector ... 1479
    32.4 CND defense per-Port per-CNPV variables 1480
    32.4.1 cnpdDefModeChoice 1480
    32.4.2 cnpdAdminDefenseMode ... 1480
    32.4.3 cnpdAutoDefenseMode 1481
    32.4.4 cnpdLldpInstanceChoice 1481
    32.4.5 cnpdLldpInstanceSelector ... 1481
    32.4.6 cnpdAlternatePriority 1481
    32.4.7 cnpdXmitCnpvCapable . 1481
    32.4.8 cnpdXmitReady 1481
    32.4.9 cncpDoesEdge .. 1482
    32.4.10 cnpdAcceptsCnTag . 1482
    32.4.11 cnpdRcvdCnpv .. 1482
    32.4.12 cnpdRcvdReady 1482
    32.4.13 cnpdIsAdminDefMode . 1482
    32.4.14 cnpdDefenseMode .. 1482
    32.5 CND defense procedures ... 1483
    32.5.1 DisableCnpvRemapping() .. 1483
    32.5.2 TurnOnCnDefenses() 1483
    32.5.3 TurnOffCnDefenses() ... 1483
    32.6 CND defense state machine. 1483
    32.7 Congestion notification protocol ... 1484
    32.8 CP variables . 1485
    32.8.1 cpMacAddress .. 1486
    32.8.2 cpId . 1486
    32.8.3 cpQSp 1486
    32.8.4 cpQLen .. 1486
    32.8.5 cpQLenOld .. 1486
    32.8.6 cpW . 1486
    32.8.7 cpQOffset 1486
    32.8.8 cpQDelta . 1486
    32.8.9 cpFb 1486
    32.8.10 cpEnqued 1487
    32.8.11 cpSampleBase ... 1487
    32.8.12 cpDiscardedFrames . 1487
    32.8.13 cpTransmittedFrames 1487
    32.8.14 cpTransmittedCnms 1487
    32.8.15 cpMinHeaderOctets 1487
    32.9 CP procedures .. 1487
    32.9.1 Random . 1487
    32.9.2 NewCpSampleBase() 1487
    32.9.3 EM_UNITDATA.request (parameters) 1488
    32.9.4 GenerateCnmPdu() . 1488
    32.10 RP per-Port per-CNPV variables... 1489
    32.10.1 rpppMaxRps 1489
    32.10.2 rpppCreatedRps 1489
    32.10.3 rpppRpCentiseconds . 1490
    32.11 RP group variables. 1490
    32.11.1 rpgEnable 1490
    32.11.2 rpgTimeReset 1490
    32.11.3 rpgByteReset . 1490
    32.11.4 rpgThreshold . 1491
    32.11.5 rpgMaxRate 1491
    32.11.6 rpgAiRate 1491
    32.11.7 rpgHaiRate .. 1491
    32.11.8 rpgGd 1491
    32.11.9 rpgMinDecFac .. 1491
    32.11.10 rpgMinRate . 1491
    32.12 RP timer . 1491
    32.12.1 RpWhile 1491
    32.13 RP variables . 1492
    32.13.1 rpEnabled 1492
    32.13.2 rpByteCount 1492
    32.13.3 rpByteStage . 1492
    32.13.4 rpTimeStage 1492
    32.13.5 rpTargetRate . 1492
    32.13.6 rpCurrentRate 1492
    32.13.7 rpFreeze 1492
    32.13.8 rpLimiterRate 1493
    32.13.9 rpFb . 1493
    32.14 RP procedures .. 1493
    32.14.1 ResetCnm 1493
    32.14.2 TestRpTerminate 1493
    32.14.3 TransmitDataFrame 1493
    32.14.4 ReceiveCnm 1494
    32.14.5 ProcessCnm 1494
    32.14.6 AdjustRates . 1494
    32.15 RP rate control state machine .. 1495
    32.16 Congestion notification and encapsulation interworking function 1497
33. Encoding of congestion notification PDUs . 1499
    33.1 Structure, representation, and encoding. 1499
    33.2 CN-TAG format. 1499
    33.2.1 Flow Identifier .. 1500
    33.3 Congestion Notification Message (CNM) . 1500
    33.4 Congestion Notification Message PDU format . 1500
    33.4.1 Version .. 1500
    33.4.2 ReservedV ... 1500
    33.4.3 Quantized Feedback 1501
    33.4.4 Congestion Point Identifier . 1501
    33.4.5 cnmQOffset . 1501
    33.4.6 cnmQDelta .. 1501
    33.4.7 Encapsulated priority 1502
    33.4.8 Encapsulated destination MAC address . 1502
    33.4.9 Encapsulated MSDU length 1502
    33.4.10 Encapsulated MSDU . 1502
    33.4.11 CNM Validation . 1502
34. Forwarding and Queuing Enhancements for time-sensitive streams (FQTSS). 1503
    34.1 Overview 1503
    34.2 Detection of SRP domains. 1503
    34.3 The bandwidth availability parameters 1504
    34.3.1 deltaBandwidth when lockClassBandwidth is false . 1504
    34.3.2 deltaBandwidth when lockClassBandwidth is true 1505
    34.3.3 Bandwidth availability parameter management . 1505
    34.4 Deriving actual bandwidth requirements from the size of the MSDU 1506
    34.5 Default SR class configuration 1507
    34.6 Transmission selection. 1508
    34.6.1 Credit-based shaper . 1509
    34.6.2 Strict priority . 1510
    34.6.3 Scheduled traffic . 1511
35. Stream Reservation Protocol (SRP). 1512
    35.1 Multiple Stream Registration Protocol (MSRP) 1513
    35.1.1 MSRP and Shared Media 1514
    35.1.2 Behavior of end stations . 1515
    35.1.3 Behavior of Bridges 1517
    35.1.4 SRP domains and status parameters . 1517
    35.2 Definition of the MSRP application 1518
    35.2.1 Definition of internal state variables . 1518
    35.2.2 Definition of MRP elements . 1520
    35.2.3 Provision and support of Stream registration service ... 1544
    35.2.4 MSRP Attribute Propagation 1549
    35.2.5 Operational reporting and statistics 1558
    35.2.6 Encoding . 1558
    35.2.7 Attribute value support requirements ... 1559
36. Priority-based Flow Control (PFC) 1560
    36.1 PFC operation .. 1560
    36.1.1 Overview . 1560
    36.1.2 PFC primitives .. 1561
    36.1.3 Detailed specification of PFC operation . 1562
    36.2 PFC-aware system queue functions. 1563
    36.2.1 PFC Initiator . 1563
    36.2.2 PFC Receiver 1563
37. Enhanced Transmission Selection (ETS) .. 1566
    37.1 Overview 1566
    37.1.1 Relationship to other transmission selection algorithms 1566
    37.2 ETS configuration parameters . 1566
    37.3 ETS algorithm.. 1566
    37.4 Legacy configuration ... 1567
38. Data Center Bridging eXchange protocol (DCBX) . 1568
    38.1 Overview 1568
    38.2 Goals 1568
    38.3 Types of DCBX attributes . 1568
    38.3.1 Informational attributes . 1568
    38.4 DCBX and LLDP... 1568
    38.4.1 Asymmetric attribute passing ... 1569
    38.4.2 Symmetric attribute passing 1570
39. Multiple I-SID Registration Protocol (MIRP) . 1572
    39.1 MIRP overview 1572
    39.1.1 Behavior of I-components .. 1574
    39.1.2 Behavior of B-components . 1574
    39.2 Definition of the MIRP application . 1574
    39.2.1 Definition of MRP elements . 1574
    39.2.2 Alternate MIRP model for B-components .. 1577
    39.2.3 Use of “new” declaration capability . 1579
    39.2.4 Attribute value support requirements ... 1579
    39.2.5 MRP Message filtering . 1579
40. Edge Virtual Bridging (EVB) .. 1580
    40.1 EVB architecture without S-channels.. 1581
    40.2 EVB architecture with S-channels. 1582
    40.3 Asymmetric EVB architecture without S-channels . 1584
    40.4 EVB status parameters. 1586
    40.4.1 EVBMode = Not supported 1586
    40.4.2 EVBMode = EVB Bridge ... 1586
    40.4.3 EVBMode = EVB station ... 1586
    40.4.4 EVBMode = NVO3 Mode .. 1587
    40.5 EVB Status Parameter for NVO3 Mode Support .. 1587
    40.5.1 NVERole = nNVE .. 1587
    40.5.2 NVERole = tNVE ... 1587
41. VSI Discovery and Configuration Protocol (VDP) . 1588
    41.1 VSI manager ID TLV definition 1588
    41.1.1 TLV type . 1589
    41.1.2 TLV information string length .. 1589
    41.1.3 VSI Manager ID 1589
    41.2 VDP association TLV definitions.. 1589
    41.2.1 TLV type . 1590
    41.2.2 TLV information string length .. 1590
    41.2.3 Status . 1590
    41.2.4 VSI Type ID (VTID) 1591
    41.2.5 VSI Type Version ... 1591
    41.2.6 VSIID format 1591
    41.2.7 VSIID 1592
    41.2.8 Filter Info format 1592
    41.2.9 Filter Info field .. 1593
    41.2.10 VDP TLV type and status semantics 1597
    41.3 Organizationally defined TLV definitions. 1598
    41.3.1 TLV type . 1598
    41.3.2 TLV information string length .. 1598
    41.3.3 Organizationally unique identifier (OUI) or Company ID (CID) ... 1598
    41.3.4 Organizationally defined information ... 1599
    41.4 Validation rules for VDP TLVs. 1599
    41.5 VDP state machines . 1599
    41.5.1 State machine conventions .. 1599
    41.5.2 Bridge VDP state machine .. 1600
    41.5.3 Station VDP state machine . 1601
    41.5.4 VDP state machine timers ... 1602
    41.5.5 VDP state machine variables and parameters ... 1602
    41.5.6 Command-Response TLV field references in state machines .. 1604
    41.5.7 VDP state machine procedures . 1605
42. S-Channel Discovery and Configuration Protocol (CDCP) 1607
    42.1 CDCP discovery and configuration . 1607
    42.2 CDCP state machine overview 1607
    42.3 CDCP configuration state machine 1608
    42.4 CDCP configuration variables . 1609
    42.4.1 AdminChnCap .. 1609
    42.4.2 AdminRole .. 1610
    42.4.3 AdminSVIDWants .. 1610
    42.4.4 LastLocalSVIDPool 1610
    42.4.5 LastRemoteSVIDList 1610
    42.4.6 LastSVIDWants 1610
    42.4.7 LocalSVIDPool . 1610
    42.4.8 OperChnCap . 1610
    42.4.9 OperRole . 1610
    42.4.10 OperSVIDList ... 1611
    42.4.11 RemoteChnCap . 1611
    42.4.12 RemoteRole 1611
    42.4.13 RemoteSVIDList 1611
    42.4.14 schState . 1611
    42.5 CDCP configuration procedures 1611
    42.5.1 SetSVIDRequest (OperRole, AdminSVIDWants, OperSVIDList) 1611
    42.5.2 RxSVIDConfig (OperSVIDList, LastRemoteSVIDList) ... 1612
    42.5.3 TxSVIDConfig (OperChnCap, RemoteChnCap, LastLocalSVIDPool,
    RemoteSVIDList, OperSVIDList) .. 1612
43. Edge Control Protocol (ECP) .. 1613
    43.1 ECP operation .. 1613
    43.2 Edge Control Sublayer Service (ECSS). 1614
    43.3 ECP state machines 1614
    43.3.1 State machine conventions .. 1614
    43.3.2 Overview . 1614
    43.3.3 Edge Control Protocol Data Unit (ECPDU) . 1615
    43.3.4 ECP transmit state machine 1616
    43.3.5 ECP receive state machine .. 1617
    43.3.6 ECP state machine timers ... 1617
    43.3.7 ECP state machine variables and parameters ... 1618
    43.3.8 ECP state machine procedures .. 1619
44. Equal Cost Multiple Paths (ECMP). 1620
    44.1 SPBM ECMP... 1620
    44.1.1 ECMP Operation . 1620
    44.1.2 ECMP ECT Algorithm . 1621
    44.1.3 Loop prevention for ECMP 1623
    44.2 Support for Flow Filtering . 1623
    44.2.1 Flow filtering tag (F-TAG) . 1624
    44.2.2 F-TAG processing ... 1625
    44.2.3 Forwarding process extension for flow filtering . 1626
    44.2.4 TTL Loop mitigation 1627
    44.2.5 CFM for ECMP with flow filtering 1627
    44.2.6 Operation with selective support for flow filtering 1629
45. Path Control and Reservation (PCR) ... 1630
    45.1 Explicit trees 1630
    45.1.1 Tree structures ... 1634
    45.1.2 Explicit ECT Algorithms 1635
    45.1.3 ISIS-PCR VLAN configuration 1637
    45.1.4 Use of VIDs for strict explicit trees 1641
    45.1.5 MAC addresses and ISIS-PCR . 1642
    45.1.6 Filtering Database entries for explicit trees 1642
    45.1.7 ISIS-PCR support ... 1643
    45.1.8 Attributes for path computation 1643
    45.1.9 Topology sub-TLV . 1645
    45.1.10 Hop sub-TLV 1648
    45.1.11 Administrative Group sub-TLV 1652
    45.1.12 Bandwidth Constraint sub-TLV 1652
    45.2 Reservation 1653
    45.2.1 Bandwidth Assignment sub-TLV ... 1653
    45.2.2 Timestamp sub-TLV . 1654
    45.2.3 Precedence ordering 1655
    45.3 Redundancy . 1655
    45.3.1 Loop-free alternates for unicast data flows . 1655
    45.3.2 Static redundant trees 1656
    45.3.3 Maximally Redundant Trees (MRTs) ... 1657
    45.3.4 MRTs with centralized GADAG computation . 1659
46. Time-Sensitive Networking (TSN) configuration . 1664
    46.1 Overview of TSN configuration 1664
    46.1.1 User/Network Interface (UNI) .. 1664
    46.1.2 Modeling of user/network configuration information .. 1664
    46.1.3 TSN configuration models .. 1664
    46.1.4 Stream transformation ... 1669
    46.2 User/network configuration information ... 1671
    46.2.1 Data types ... 1671
    46.2.2 Protocol integration . 1672
    46.2.3 Talker 1673
    46.2.4 Listener . 1685
    46.2.5 Status . 1686
    46.3 YANG for TSN user/network configuration ... 1692
47. Asynchronous Traffic Shaping (ATS) in end stations. 1693
    47.1 Talker transmission behavior... 1693
    47.1.1 ATS traffic class model in Talkers . 1693
    47.1.2 Simplified ProcessFrame(frame) procedure . 1693
    47.1.3 System clock functions and processing delays . 1693
    47.2 Scheduler parameter consistency... 1694
48. YANG Data Models 1695
    48.1 YANG Framework 1696
    48.1.1 Interface Management (IETF RFC 8343) Model ... 1697
    48.2 IEEE 802.1Q YANG models... 1698
    48.2.1 VLAN Bridge components model .. 1698
    48.2.2 Two-Port MAC Relay (TPMR) model . 1701
    48.2.3 Customer VLAN Bridge model 1702
    48.2.4 Provider Bridge model .. 1703
    48.2.5 CFM Model . 1706
    48.2.6 Stream filters and stream gates model .. 1710
    48.2.7 Asynchronous Traffic Shaping (ATS) model ... 1711
    48.3 Structure of the YANG models . 1712
    48.3.1 VLAN Bridge components model . 1713
    48.3.2 Two-Port MAC Relay model 1713
    48.3.3 Customer VLAN Bridge model 1713
    48.3.4 Provider Bridge model .. 1713
    48.3.5 CFM model . 1714
    48.3.6 Stream filters and stream gates model .. 1714
    48.3.7 Asynchronous Traffic Shaping (ATS) model ... 1714
    48.4 Security considerations 1716
    48.4.1 Security considerations of the VLAN Bridge components model . 1716
    48.4.2 Security considerations of the Two-Port MAC Relay model ... 1717
    48.4.3 Security considerations of the Customer VLAN Bridge model . 1717
    48.4.4 Security considerations of the Provider Bridge model . 1717
    48.4.5 Security considerations of the CFM model 1718
    48.4.6 Security considerations of the Stream filters and stream gates model . 1718
    48.4.7 Security considerations of the Asynchronous Traffic Shaping model . 1718
    48.5 YANG schema tree definitions 1719
    48.5.1 Schema for the ieee802-types YANG module . 1719
    48.5.2 Schema for the ieee802-dot1q-types YANG module ... 1719
    48.5.3 Schema for the ieee802-dot1q-tsn-types YANG module ... 1719
    48.5.4 Schema for the ieee802-dot1q-bridge YANG module . 1719
    48.5.5 Schema for the ieee802-dot1q-tpmr YANG module 1723
    48.5.6 Schema for the ieee802-dot1q-pb YANG module . 1723
    48.5.7 Schema for the ieee802-dot1q-cfm-types YANG module . 1723
    48.5.8 Schema for the ieee802-dot1q-cfm YANG module . 1724
    48.5.9 Schema for the ieee802-dot1q-cfm-bridge YANG module 1726
    48.5.10 Schema for the ieee802-dot1q-cfm-alarm YANG module . 1727
    48.5.11 Schema for the ieee802-dot1q-stream-filters-gates YANG module . 1727
    48.5.12 Schema for the ieee802-dot1q-ats YANG module . 1728
    48.6 YANG modules ... 1729
    48.6.1 The ieee802-types YANG module . 1729
    48.6.2 The ieee802-dot1q-types YANG module ... 1734
    48.6.3 The ieee802-dot1q-tsn-types YANG module ... 1748
    48.6.4 The ieee802-dot1q-bridge YANG module . 1767
    48.6.5 The ieee802-dot1q-tpmr YANG module 1792
    48.6.6 The ieee802-dot1q-pb YANG module . 1797
    48.6.7 The ieee802-dot1q-cfm-types YANG module . 1800
    48.6.8 The ieee802-dot1q-cfm YANG module . 1811
    48.6.9 The ieee802-dot1q-cfm-bridge YANG module 1830
    48.6.10 The ieee802-dot1q-cfm-alarm YANG module . 1838
    48.6.11 The ieee802-dot1q-stream-filters-gates YANG module . 1840
    48.6.12 The ieee802-dot1q-ats YANG module . 1846
    Annex A (normative) PICS proforma—Bridge implementations 1851
    A.1 Introduction 1851
    A.2 Abbreviations and special symbols 1851
    A.2.1 Status symbols .. 1851
    A.2.2 General abbreviations ... 1851
    A.3 Instructions for completing the PICS proforma. 1852
    A.3.1 General structure of the PICS proforma . 1852
    A.3.2 Additional information . 1852
    A.3.3 Exception information .. 1852
    A.3.4 Conditional status ... 1853
    A.4 PICS proforma for IEEE Std 802.1Q—Bridge implementations .. 1854
    A.4.1 Implementation identification ... 1854
    A.4.2 Protocol summary, IEEE Std 802.1Q ... 1854
    A.5 Major capabilities .. 1855
    A.6 Media access control methods . 1860
    A.7 Relay and filtering of frames ... 1861
    A.8 Basic Filtering Services . 1862
    A.9 Addressing . 1863
    A.10 Rapid Spanning Tree Protocol (RSTP) 1865
    A.12 Implementation parameters 1867
    A.11 BPDU encoding . 1867
    A.13 Performance . 1868
    A.14 Bridge management . 1869
    A.15 Remote management 1879
    A.16 Expedited traffic classes 1880
    A.17 Extended Filtering Services . 1880
    A.18 Multiple Spanning Tree Protocol (MSTP). 1881
    A.19 VLAN support . 1883
    A.20 Multiple MAC Registration Protocol (MMRP). 1886
    A.21 Multiple VLAN Registration Protocol (MVRP) ... 1887
    A.22 Multiple Registration Protocol (MRP) 1888
    A.23 Connectivity Fault Management (CFM) 1889
    A.24 Management Information Base (MIB) 1894
    A.25 Protection Switching (PS).. 1897
    A.26 Data-driven and data-dependent connectivity fault management (DDCFM).. 1897
    A.27 Two-Port MAC Relay (TPMR) . 1897
    A.28 MAC Status Protocol (MSP) ... 1898
    A.29 Forwarding and Queuing Enhancements for time-sensitive streams (FQTSS). 1899
    A.30 Congestion notification 1899
    A.31 Stream Reservation Protocol (SRP). 1900
    A.32 Multiple I-SID Registration Protocol (MIRP) . 1904
    A.34 Enhanced Transmission Selection (ETS) .. 1905
    A.33 Priority-based Flow Control (PFC). 1905
    A.35 Data Center Bridging eXchange protocol (DCBX). 1906
    A.36 Infrastructure Protection Switching (IPS).. 1906
    A.38 EVB Bridge 1907
    A.37 Shortest Path Bridging (SPB) .. 1907
    A.39 EVB station 1908
    A.40 Edge relay (ER) . 1909
    A.42 VDP, CDCP, and ECP. 1911
    A.41 VEB and VEPA ER components... 1911
    A.43 Path Control and Reservation .. 1912
    A.44 Scheduled traffic 1913
    A.45 Frame preemption .. 1913
    A.46 Per-Stream Filtering and Policing.. 1914
    A.47 YANG.. 1915
    A.48 Stream reservation remote management (SRRM) . 1916
    A.49 TSN Centralized Network Configuration (CNC) station .. 1917
    A.50 VDP for NVO3 nNVE Devices . 1918
    A.51 VDP for NVO3 tNVE Devices 1919
    A.52 Asynchronous Traffic Shaping 1920
    Annex B (normative) PICS proforma—End station implementations .. 1921
    B.1 Introduction 1921
    B.2 Abbreviations and special symbols 1921
    B.2.1 Status symbols .. 1921
    B.2.2 General abbreviations ... 1921
    B.3 Instructions for completing the PICS proforma. 1922
    B.3.1 General structure of the PICS proforma . 1922
    B.3.2 Additional information . 1922
    B.3.3 Exception information .. 1922
    B.3.4 Conditional status ... 1923
    B.4 PICS proforma for IEEE Std 802.1Q—End station implementations 1924
    B.4.1 Implementation identification ... 1924
    B.4.2 Protocol summary, IEEE Std 802.1Q ... 1924
    B.5 Major capabilities .. 1925
    B.6 Multiple MAC Registration Protocol (MMRP). 1926
    B.8 Multiple Registration Protocol (MRP) 1927
    B.7 Multiple VLAN Registration Protocol (MVRP) ... 1927
    B.9 Forwarding and Queuing Enhancements for time-sensitive streams (FQTSS). 1928
    B.10 Stream Reservation Protocol (SRP). 1929
    B.11 Congestion notification 1932
    B.13 Enhanced Transmission Selection (ETS) .. 1934
    B.14 Data Center Bridging eXchange protocol (DCBX). 1934
    B.12 Priority-based Flow Control (PFC) 1934
    B.16 Frame Preemption.. 1935
    B.17 Per-Stream Filtering and Policing.. 1935
    B.15 Scheduled traffic 1935
    B.18 Asynchronous Traffic Shaping 1936
    Annex C (normative) Designated MSRP Node (DMN) Implementations .. 1937
    C.1 DMNs on CSNs . 1937
    C.1.1 CSN characteristics . 1937
    C.1.2 DMN handling on CSN 1938
    C.1.3 MSRPDU handling on a CSN .. 1939
    C.1.4 CSN bandwidth fluctuations . 1940
    C.2 DMN on MoCA . 1940
    C.2.1 DMN Selection on MoCA Network . 1940
    C.2.2 MoCA network bandwidth management 1944
    C.3 DMNs on IEEE 802.11 media . 1945
    C.3.1 MSRP handling . 1946
    C.3.2 BSS DMN selection 1949
    C.3.3 BSS network bandwidth management .. 1950
    Annex D (normative) IEEE 802.1 Organizationally Specific TLVs . 1953
    D.1 Requirements of the IEEE 802.1 Organizationally Specific TLV sets 1953
    D.2 Organizationally Specific TLV definitions 1954
    D.2.1 Port VLAN ID TLV 1954
    D.2.2 Port And Protocol VLAN ID TLV . 1954
    D.2.3 VLAN Name TLV .. 1955
    D.2.4 Protocol Identity TLV ... 1956
    D.2.5 VID Usage Digest TLV 1957
    D.2.6 Management VID TLV . 1957
    D.2.7 Congestion Notification TLV ... 1958
    D.2.8 ETS Configuration TLV . 1959
    D.2.9 ETS Recommendation TLV . 1961
    D.2.10 Priority-based Flow Control Configuration TLV ... 1962
    D.2.11 Application Priority TLV 1963
    D.2.12 EVB TLV 1964
    D.2.13 CDCP TLV . 1969
    D.2.14 Application VLAN TLV . 1971
    D.3 IEEE 802.1 Organizationally Specific TLV management. 1972
    D.3.1 IEEE 802.1 Organizationally Specific TLV selection management 1972
    D.3.2 IEEE 802.1 managed objects—TLV variables . 1973
    D.4 PICS proforma for IEEE 802.1 Organizationally Specific TLV extensions . 1974
    D.4.1 Implementation identification ... 1974
    D.4.2 Protocol summary, IEEE Std 802.1Q ... 1974
    D.4.3 Major capabilities and options .. 1975
    D.5 IEEE 802.1/LLDP extension MIB. 1977
    D.5.1 Internet Standard Management Framework . 1977
    D.5.2 Structure of the IEEE 802.1/LLDP extension MIB 1977
    D.5.3 Relationship to other MIBs . 1984
    D.5.4 Security considerations for IEEE 802.1 LLDP extension MIB module . 1985
    D.5.5 IEEE 802.1 LLDP extension MIB module—version 2 . 1987
    D.5.6 EVB extensions to the IEEE 802.1 LLDP extension MIB module 2047
    Annex E (normative) Notational conventions used in state diagrams... 2054
    Annex F (informative) Shared and Independent VLAN Learning (SVL and IVL) 2056
    F.1 Requirements for Shared and Independent Learning .. 2056
    F.1.1 Connecting independent VLANs 2057
    F.1.2 Duplicate MAC addresses .. 2058
    F.1.3 Asymmetric VLANs and Rooted-Multipoint connectivity 2059
    F.1.4 Shared learning and Shortest Path Bridging VID (SPBV) mode ... 2062
    F.1.5 Generic constraints on SVL and IVL use ... 2064
    Annex G (informative) MAC method-dependent aspects of VLAN support 2065
    G.1 Example tagged IEEE 802.3 EtherType-encoded frame format ... 2065
    G.2 Padding and frame size considerations 2065
    G.2.1 Treatment of PAD fields in IEEE 802.3 frames . 2065
    G.2.2 Maximum PDU size 2066
    G.2.3 Minimum PDU size 2066
    G.3 Tag insertion and removal for LLC media 2067
    G.4 IEEE 802.11 and PMPN media . 2068
    G.4.1 IEEE 802.11 Portal convergence 2068
    G.4.2 Point-to-Multipoint Network convergence: multiple connections . 2068
    G.4.3 Point-to-Multipoint Network convergence: single connection . 2068
    Annex H (informative) Interoperability considerations. 2069
    H.1 Requirements for interoperability.. 2069
    H.1.1 Static filtering requirements 2069
    H.1.2 Configuration requirements for VLAN-tagging . 2069
    H.2 Homogeneous VLAN-aware networks 2070
    H.2.1 Consistency of static VLAN filtering ... 2070
    H.2.2 Consistent view of the “untagged VLAN(s)” on a given LAN 2071
    H.3 Heterogeneous networks: Intermixing MAC Bridges (M) and VLAN Bridges (V) ... 2072
    H.3.1 Example: Adding a VLAN Bridge to provide filtering to a MAC Bridged Network
    2072
    H.3.2 Example: Adding a MAC Bridge to a (previously) Homogeneous VLAN Bridged
    Network 2073
    H.4 Intermixing Port-based classification and Port-and-Protocol-based classification or future
    enhancements in VLAN Bridges ... 2073
    H.4.1 Example: Intermixing Protocol-based ingress rules . 2074
    H.4.2 Differing views of untagged traffic on a given LAN 2074
    Annex I (informative) Priority and drop precedence. 2075
    I.1 Traffic types. 2075
    I.2 Managing latency and throughput . 2076
    I.3 Traffic type to traffic class mapping 2076
    I.4 Traffic types and priority values 2078
    I.5 Supporting the credit-based shaper algorithm . 2079
    I.6 Supporting drop precedence 2080
    I.7 Priority Code Point allocation.. 2080
    I.8 Interoperability. 2081
    Annex J (informative) CFM protocol design and use 2083
    J.1 Origin of CFM . 2083
    J.2 Deployment of CFM 2083
    J.3 MD Level allocation alternative 2084
    J.4 Relationship of IEEE Std 802.1Q CFM to other standards . 2084
    J.5 Interpreting Linktrace results... 2085
    J.6 MP addressing: Individual and Shared MP addresses . 2086
    J.6.1 Individual MP address model ... 2087
    J.6.2 Shared MP address model and the CFM Port ... 2087
    Annex K (informative) TPMR use cases. 2090
    K.1 Use case 1—TPMR as User to Network Interface (UNI) demarcation device . 2090
    K.2 Use case 2—TPMRs with aggregated links 2091
    K.3 Use case 3—Multiple TPMRs . 2091
    K.4 Special cases 2092
    Annex L (informative) Operation of the credit-based shaper algorithm . 2095
    L.1 Overview of credit-based shaper operation . 2095
    L.2 “Class measurement intervals” in Bridges. 2100
    L.3 Determining worst-case latency contribution and buffering requirements . 2101
    L.3.1 Interference delay ... 2102
    L.3.2 Maximum interference delay and maximum buffer requirement ... 2110
    L.4 Operation of credit-based shaper in Coordinated Shared Network (CSN) 2111
    Annex M (normative) Support for PFC in link layers without MAC Control .. 2112
    M.1 Overview 2112
    M.2 PFC PDU format 2112
    Annex N (informative) Buffer requirements for PFC ... 2113
    N.1 Overview 2113
    N.2 Delay model. 2113
    N.3 Interface Delay. 2116
    N.4 Cable Delay 2116
    N.5 Higher Layer Delay . 2116
    N.6 Computation example .. 2117
    Annex O (informative) Preserving the integrity of FCS fields in MAC Bridges 2118
    O.1 Background 2118
    O.2 Basic mathematical ideas behind CRC and FCS ... 2119
    O.3 Detection Lossless Circuit approach 2120
    O.4 Algorithmic modification of an FCS ... 2121
    O.4.1 Data changed, length unchanged 2121
    O.4.2 Length changed, original data unchanged .. 2122
    O.4.3 Preservation of detectability . 2123
    O.5 Conclusions 2124
    Annex P (informative) Frame duplication and misordering 2125
    P.1 Background 2125
    P.2 Frame duplication .. 2125
    P.3 Frame misordering. 2126
    P.4 Other considerations 2127
    Annex Q (informative) Traffic scheduling .. 2128
    Q.1 Motivation.. 2128
    Q.2 Using gate operations to create protected windows. 2129
    Q.3 Availability of PTP 2130
    Q.4 Scheduled traffic and end stations . 2130
    Q.5 CycleTimeExtension variables 2130
    Annex R (informative) Preemption and IEEE 802.1AE MAC Security . 2131
    Annex S (informative) Preemption and scheduled traffic ... 2133
    S.1 Scheduling used in isolation 2133
    S.2 Preemption used in isolation 2133
    S.3 Scheduling and preemption used in combination, no HOLD/RELEASE . 2134
    S.4 Scheduling and preemption used in combination with HOLD/RELEASE . 2134
    S.5 Bandwidth allocation and express traffic... 2134
    Annex T (informative) Cyclic queuing and forwarding .. 2136
    T.1 Overview of CQF... 2136
    T.2 An approach to CQF implementation.. 2137
    T.3 Use of Per-Stream Filtering and Policing for CQF 2138
    T.3.1 Stream filter configuration .. 2138
    T.3.2 Stream gate configuration ... 2138
    T.4 Use of traffic scheduling for CQF . 2139
    T.5 Timing considerations.. 2140
    T.5.1 Choice of T . 2140
    T.5.2 Cycle interleaving ... 2141
    T.5.3 Cycle alignment between adjacent Ports 2143
    Annex U (informative) TSN configuration examples . 2144
    U.1 Examples for time-aware talker. 2144
    U.1.1 Using enhancements for scheduled traffic .. 2145
    U.1.2 Using strict priority . 2146
    U.1.3 Using per-stream scheduling 2147
    U.2 Example of workflow for fully centralized models . 2148
    Annex V (informative) Asynchronous Traffic Shaping delay analysis framework 2152
    V.1 General assumptions 2152
    V.2 End-to-end delay modeling approach .. 2152
    V.3 Buffering delays. 2153
    V.4 Media-dependent delays 2155
    V.5 Bridge—Internal arrival time recognition delays .. 2155
    V.6 Bridge—Internal processing delays. 2155
    V.7 Bridge—Internal clock offset variations 2156
    V.8 Inter-device clock rate deviations .. 2156
    V.9 Combined delay bounds. 2157
    Annex W (informative) Bibliography 2158

802.1Qcz-2023

1. Overview 16 1.3 Introduction 16
2. Normative references . 17
3. Definitions . 18
4. Abbreviations . 19
5. Conformance.. 20
   5.4 VLAN Bridge component requirements 20 5.4.1 VLAN Bridge component options 20 5.4.7 VLAN Bridge requirements for congestion isolation (optional) .. 20
   5.32 End station requirements for congestion isolation. 21
6. Support of the MAC Service . 22
   6.10 Support of the ISS/EISS by PIPs ... 22 6.10.1 Data indications 22
7. Principles of Bridge operation ... 23
   8.6 The Forwarding Process 23
   8.6.5 Flow classification and metering .. 23
   8.6.6 Queuing frames . 26
   8.6.8 Transmission selection .. 26
8. Bridge management ... 27
   12.1 Management functions... 27 12.1.1 Configuration Management .. 27 12.2 VLAN Bridge objects 27 12.31 Managed objects for per-stream classification and metering 27
   12.31.1 The Stream Parameter Table . 27
   12.31.2 The Stream Filter Instance Table .. 28
   12.31.3 The Stream Gate Instance Table ... 29
   12.33 Congestion Isolation managed objects .. 30
   12.33.1 CI entity managed object .. 31
   12.33.2 CI Peer Table 31
   12.33.3 CI Stream Table 31
   12.33.4 CIP entity managed object 32
9. Principles of congestion notification . 33
   30.1 Congestion notification design requirements 33 30.3 Congestion Controlled Flow (CCF)... 33
10. Time-Sensitive Networking (TSN) configuration . 34
    46.2 User/network configuration information ... 34 46.2.1 Data types . 34 46.2.3 Talker 34
11. YANG Data Models .. 35
    48.2 IEEE 802.1Q YANG models . 35 48.2.8 Congestion Isolation (CI) model ... 35
    48.3 Structure of the YANG models . 36
    48.3.7 Asynchronous Traffic Shaping (ATS) model ... 36
    48.3.8 Congestion Isolation (CI) model ... 37
    48.4 Security considerations .. 38
    48.4.8 Security considerations of the Congestion Isolation model .. 38
    48.5 YANG
    48.5.11 Schema for the ieee802-dot1q-stream-filters-gates YANG module . 39
    48.5.12 Schema for the ieee802-dot1q-stream-filters-gates-bridge YANG module . 39
    48.5.13 Schema for the ieee802-dot1q-ats YANG module ... 40
    48.5.14 Schema for the ieee802-dot1q-ats-bridge YANG module ... 40
    48.5.15 Schema for the ieee802-dot1q-congestion-isolation YANG module ... 41
    48.5.16 Schema for the ieee802-dot1q-congestion-isolation-bridge YANG module ... 42
    schema tree definitions.. 39
    48.6 YANG
    48.6.2 The ieee802-dot1q-types YANG module . 43
    48.6.11 The ieee802-dot1q-stream-filters-gates YANG module ... 58
    48.6.12 The ieee802-dot1q-stream-filters-gates-bridge YANG module ... 64
    48.6.13 The ieee802-dot1q-ats YANG module . 65
    48.6.14 The ieee802-dot1q-ats-bridge YANG module . 70
    48.6.15 The ieee802-dot1q-congestion-isolation YANG module . 72
    48.6.16 The ieee802-dot1q-congestion-isolation-bridge YANG module . 80
12. Congestion Isolation .. 82
    49.1 Congestion isolation objectives . 83
    49.2 Principles of congestion isolation .. 84
    49.2.1 Congesting flow identification .. 85
    49.2.2 IEEE Std 802.1CB stream identification .. 85
    49.2.3 Flow priority modification 85
    49.2.4 Priority-based Flow Control interaction ... 85
    49.2.5 Congestion isolation signaling .. 86
    49.2.6 Congesting to non-congesting status change 86
    49.2.7 System topology and port orientation ... 87
    49.2.8 Comparison to Congestion Notification ... 87
    49.3 The Congestion Isolation Aware Forwarding Process .. 88
    49.3.1 CIP Congestion Detection 89
    49.3.2 CIP transmission gates .. 89
    49.3.3 CIM Demultiplexer ... 89
    49.3.4 Congesting flow identification .. 89
    49.3.5 CIM Multiplexer ... 89
    49.3.6 CI Peer Table 90
    49.3.7 CI Stream Table 90
    49.4 Congestion Isolation Protocol 90
    49.4.1 Variables controlling operation 90
    49.4.2 CIP procedures .. 94
    49.4.3 Encoding of the CIM PDU . 101
    49.4.4 LLDP Congestion Isolation TLV ... 104
    49.5 Topology Recognition . 105
    49.5.1 TR theory of operation 105
    49.5.2 TR variables controlling operation . 106
    49.5.3 TR procedures . 10
    Annex A (normative) PICS proforma—Bridge implementations ... 108
    A.5 Major capabilities 108 A.7 Relay and filtering of frames ... 108 A.14 Bridge management . 109 A.47 YANG .. 110 A.53 Congestion Isolation 111
    Annex B (normative) PICS proforma—End station implementations 112
    B.5 Major capabilities 112 B.19 Congestion Isolation 112
    Annex D (normative) IEEE 802.1 Organizationally Specific TLVs ... 113
    D.1 Requirements of the IEEE 802.1 Organizationally Specific TLV sets 113
    D2 Organizationally Specific TLV definitions.. 113
    D.2.15 Congestion Isolation TLV .. 113
    D.2.16 Topology Recognition TLV 115
    D.3 IEEE 802.1 Organizationally Specific TLV management... 116
    D.3.2 IEEE 802.1 managed objects—TLV variables ... 116
    D.4 PICS proforma for IEEE 802.1 Organizationally Specific TLV extensions .. 117
    D.4.3 Major capabilities and options 117
    D.5 IEEE 802.1/LLDP extension MIB... 118
    D.5.2 Structure of the IEEE 802.1/LLDP extension MIB 118
    D.5.4 Security considerations for IEEE 802.1 LLDP extension MIB module . 119
    D.5.5 IEEE 802.1 LLDP extension MIB module—version 2 . 121
    D.6 IEEE 802.1/LLDP extension YANG... 193
    D.6.1 YANG framework .. 193
    D.6.2 IEEE 802.1 Organizationally Specific TLV YANG data models .. 193
    D.6.3 Structure of the IEEE 802.1/LLDP extension YANG models ... 198
    D.6.4 Security considerations ... 199
    D.6.5 Definition of the IEEE 802.1/LLDP extension YANG modules 200
    D.6.6 IEEE 802.1/LLDP extension YANG modules ... 204
    Annex W (informative) Maintaining frame order with Congestion Isolation ... 225
    Queue markers for order preservation . 227 Congestion Isolation queuing and Priority-based Flow Control . 229
    Annex X (informative) Bibliography 232

2. Normative references

ANSI X3.159, American National Standards for Information Systems—Programming Language—C.11
IEEE Std 802®, IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture.12, 13
IEEE Std 802d™-2017, IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture—Amendment 1: Allocation of Uniform Resource Name (URN) Values in IEEE 802® Standards.
IEEE Std 802.1AB™, IEEE Standard for Local and metropolitan area networks—Station and Media Access Control Connectivity Discovery.
IEEE Std 802.1AC™, IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Service Definition.
IEEE Std 802.1AE™, IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Security.
IEEE Std 802.1AS™, IEEE Standard for Local and metropolitan area networks—Timing and
Synchronization for Time-Sensitive Applications in Bridged Local Area Networks.
IEEE Std 802.1AX™, IEEE Standard for Local and metropolitan area networks—Link Aggregation.
IEEE Std 802.1BR™, IEEE Standard for Local and metropolitan area networks—Virtual Bridged Local Area Networks—Bridge Port Extension.
IEEE Std 802.1CB™, IEEE Standard for Local and metropolitan area networks—Frame Replication and Elimination for Reliability.
IEEE Std 802.1X™, IEEE Standard for Local and Metropolitan Area Networks—Port-Based Network Access Control.
IEEE Std 802.3™, IEEE Standard for Ethernet.
IEEE Std 802.11™, Standard for Information Technology—Telecommunications and Information Exchange between Systems—Local and Metropolitan Area Networks—Specific Requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications.
IEEE Std 802.20™, IEEE Standard for Local and metropolitan area networks—Part 20: Air Interface for Mobile Broadband Wireless Access Systems Supporting Vehicular Mobility—Physical and Media Access Control Layer Specification.
IETF RFC 1035 (STD 13), Domain Names—Implementation and Specification, November 1987.14
11 ANSI publications are available from the IHS Standards Store (https://global.ihs.com/).
12 The IEEE standards or products referred to in Clause 2 are trademarks owned by The Institute of Electrical and Electronics Engineers, Incorporated.
13 IEEE publications are available from The Institute of Electrical and Electronics Engineers (https://standards.ieee.org/).
14 IETF RFCs are available from the Internet Engineering Task Force (https://www.ietf.org/).
IETF RFC 1042, A Standard for the Transmission of IP Datagrams over IEEE 802 Networks, February 1988.
IETF RFC 1390 (STD 36), Transmission of IP and ARP over FDDI Networks, January 1993.
IETF RFC 2104, HMAC: Keyed-Hashing for Message Authentication, February 1997.
IETF RFC 2119 (BCP 14), Key words for use in RFCs to Indicate Requirement Levels, March 1997.
IETF RFC 2205, Resource ReSerVation Protocol (RSVP)—Version 1 Functional Specification, September 1997.
IETF RFC 2271, An Architecture for Describing SNMP Management Frameworks, January 1998.
IETF RFC 2474, Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers, December 1998.
IETF RFC 2578 (STD 58), Structure of Management Information Version 2 (SMIv2), April 1999.
IETF RFC 2579 (STD 58), Textual Conventions for SMIv2, April 1999.
IETF RFC 2580 (STD 58), Conformance Statements for SMIv2, April 1999.
IETF RFC 2685, Virtual Private Networks Identifier, September 1999.
IETF RFC 2737, Entity MIB (Version 2), December 1999.
IETF RFC 2750, RSVP Extensions for Policy Control, January 2001.
IETF RFC 2863, The Interfaces Group MIB, June 2000.
IETF RFC 3046, DHCP Relay Agent Information Option, January 2000.
IETF RFC 3410, Introduction and Applicability Statements for Internet Standard Management Framework, December 2002.
IETF RFC 3411, An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks, December 2002.
IETF RFC 3413 (STD 62), Simple Network Management Protocol (SNMP) Applications, December 2002.
IETF RFC 3414 (STD 62), User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3), December 2002.
IETF RFC 3415 (STD 62), View-based Access Control Model (VACM) for the Simple Network
Management Protocol (SNMP), December 2002.
IETF RFC 3417 (STD 62), Transport Mappings for the Simple Network Management Protocol (SNMP), December 2002.
IETF RFC 3418 (STD 62), Management Information Base (MIB) for the Simple Network Management Protocol (SNMP), December 2002.
IETF RFC 3419, Textual Conventions for Transport Addresses, December 2002.
IETF RFC 4122, A Universally Unique IDentifier (UUID) URN Namespace, July 2005.
IETF RFC 4188, Definitions of Managed Objects for Bridges, September 2005.
IETF RFC 4291, IP Version 6 Addressing Architecture, February 2006.
IETF RFC 4318, Definitions of Managed Objects for Bridges with Rapid Spanning Tree Protocol, December 2005.
IETF RFC 4363, Definitions of Managed Objects for Bridges with Traffic Classes, Multicast Filtering, and Virtual LAN Extensions, January 2006.
IETF RFC 4789, Simple Network Management Protocol (SNMP) over IEEE 802 Networks, November 2006.
IETF RFC 5120, M-ISIS: Multi Topology (MT) Routing in Intermediate System to Intermediate Systems (IS-ISs), February 2008.
IETF RFC 5303, Three-Way Handshake for IS-IS Point-to-Point Adjacencies, October 2008.
IETF RFC 5305, IS-IS Extensions for Traffic Engineering, October 2008.
IETF RFC 5307, IS-IS Extensions in Support of Generalized Multi-Protocol Label Switching (GMPLS),October 2008.
IETF RFC 6165, Extensions to IS-IS for Layer-2 Systems, April 2011.
IETF RFC 7365, Framework for Data Center (DC) Network Virtualization, October 2014.
IETF RFC 7810, IS-IS Traffic Engineering (TE) Metric Extensions, May 2016.
IETF RFC 7811, An Algorithm for Computing IP/LDP Fast Reroute Using Maximally Redundant Trees (MRT-FRR) , June 2016.
IETF RFC 7950, The YANG 1.1 Data Modeling Language, August 2016.
IETF RFC 8343, A YANG Data Model for Interface Management, March 2018.
IETF RFC 8394, Split Network Virtualization Edge (Split-NVE) Control-Plane Requirements, May 2018.
ISO/IEC 7498-1, Information technology—Open Systems Interconnection—Basic Reference Model: The Basic Model.15
ISO/IEC 8802-2, Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 2: Logical link control.
ISO/IEC 8802-11, Telecommunications and information exchange between systems—Specific requirements for local and metropolitan area networks—Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications.
15 ISO/IEC publications are available from the International Organization for Standardization (https://www.iso.org/) and the
International Electrotechnical Commission (https://www.iec.ch/). ISO/IEC publications are also available from the American National
Standards Institute (https://www.ansi.org/).
ISO/IEC TR 9577:1999, Information technology—Protocol identification in the network layer.
ISO/IEC 10589:2002, Information technology—Telecommunications and information exchange between
systems—Intermediate System to Intermediate System intra-domain routeing information exchange
protocol for use in conjunction with the protocol for providing the connectionless-mode network service
(ISO 8473).
ISO/IEC TR 11802-5:1997, Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Technical reports and guidelines—Part 5: Media
Access Control (MAC) Bridging of Ethernet V2.0 in Local Area Networks.
ITU-T Recommendation X.690 (2002), Information technology—ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules
(DER).16
ITU-T Recommendation G.8013/Y.1731, Operation, administration and maintenance (OAM) functions and mechanisms for Ethernet-based networks.
MEF Technical Specification 10.3 (MEF 10.3), Ethernet Services Attributes Phase 3, October 2013.17
16 ITU-T publications are available from the International Telecommunications Union (https://www.itu.int/).
17 MEF publications are available from the MEF Forum (https://www.mef.net/).

IEEE 802.1Qcz

IEEE Std 802.1CSTM, IEEE Standard for Local and Metropolitan Area Networks—Link-local Registration Protocol.7, 8
IETF RFC 768 (STD0006), User Datagram Protocol, August 1980.9
IETF RFC 791 (STD0005), Internet Protocol—DARPA Internet Program Protocol Specification, September 1981.
IETF RFC 3168, The Addition of Explicit Congestion Notification (ECN) to IP, September 2001.
IETF RFC 3232, Assigned Numbers: RFC 1700 is Replaced by an On-line Database, January 2002.
IETF RFC 8200 (STD0086), Internet Protocol, Version 6 (IPv6) Specification, July 2017.

4. Abbreviations

The following abbreviations are used in this standard:
ACK acknowledgment
ADAG Almost Directed Acyclic Graph
AP Agreement Protocol
ATS Asynchronous Traffic Shaping
AV audio/video
AVB audio/video bridging
B-BEB B type Backbone Edge Bridge
B-Comp B-component
B-DA Backbone Destination MAC address
B-DEI B-VLAN Drop Eligible Indicator
B-MAC Backbone Media Access Control
B-PCP B-VLAN Priority Code Point
B-SA Backbone Source MAC address
B-TAG B-VLAN tag
B-VID Backbone VLAN Identifier
B-VLAN Backbone Virtual Local Area Network
BCB Backbone Core Bridge
BEB Backbone Edge Bridge
BLCE Bridge Local Computation Engine
BNF Backus-Naur Form
BPDU Bridge Protocol Data Unit
BSI backbone service instance
CBS committed burst size
C-DA Customer Destination MAC address
C-MAC Customer Media Access Control
C-SA Customer Source MAC address
C-TAG C-VLAN tag
C-VID Customer VLAN Identifier
C-VLAN Customer Virtual Local Area Network
CAP S-channel Access Port
CBN Customer Bridged Network
CBP Customer Backbone Port
CCF Congestion Controlled Flow
CCM Continuity Check Message
CCP Current Congestion Point
CDCP S-channel Discovery and Configuration Protocol
CE customer equipment
CEP Customer Edge Port
CFM Connectivity Fault Management
CID Company ID20. (See also OUI)
CIST Common and Internal Spanning Tree
CIST-MSTID Common and Internal Spanning Tree Multiple Spanning Tree Instance Identifier
CN congestion notification
CNC Centralized Network Configuration
CN-TAG Congestion Notification tag
CND Congestion Notification Domain
CNM Congestion Notification Message
CNP Customer Network Port
CNPV Congestion Notification Priority Value
CP Congestion Point
CPID Congestion Point Identifier
CQF cyclic queuing and forwarding
CR constrained routing
CRC Cyclic Redundancy Check
CSN Coordinated Shared Network
CSPF Constrained Shortest Path First
CST Common Spanning Tree
CUC Centralized User Configuration
DAG Directed Acyclic Graph
DCB Data Center Bridging
DCBX Data Center Bridging eXchange protocol
DCCP Datagram Congestion Control Protocol
DCN data center network
DDCFM data-driven and data-dependent connectivity fault management
DDF data-driven and data-dependent fault
DEI Drop Eligible Indicator
DLSDU Data Link Service Data Unit
DMN Designated MSRP Node
DoSAP Domain Service Access Point
DR Decapsulator Responder
DRP downlink relay port
ECMP Equal Cost Multiple Paths
ECP Edge Control Protocol
ECPDU Edge Control Protocol Data Unit
ECT Equal Cost Tree
EISS Enhanced Internal Sublayer Service (6.8)
eMAC express Media Access Control
ER edge relay
ESP Ethernet Switched Path
ET Explicit Tree
ETDB Explicit Tree Database
ETS Enhanced Transmission Selection
EUI-48 48-bit Extended Unique Identifier21
EVB Edge Virtual Bridging
F-TAG flow filtering tag
Fb Quantized Feedback
FCS Frame Check Sequence
FDB Filtering Database
FID Filtering Identifier (8.8.8, 8.9.3)
FPT forward path test
FQTSS Forwarding and Queuing Enhancements for time-sensitive streams
FS Forced Switch
GADAG Generalized Almost Directed Acyclic Graph
I-BEB I type Backbone Edge Bridge
I-Comp I-component
I-DEI Backbone Service Instance Drop Eligible Indicator
I-PCP Backbone Service Instance Priority Code Point
I-TAG Backbone Service Instance tag
I-SID Backbone Service Instance Identifier
IB-BEB combined I type and B type Backbone Edge Bridge
ID identifier
IP Internet Protocol
IPG Infrastructure Protection Group
IPS Infrastructure Protection Switching
IPV internal priority value specification
IPv6 Internet Protocol version 6
ISAP Intermediate Service Access Point
ISIS-PCR Intermediate System to Intermediate System with Path Control and Reservation extensions
ISIS-SPB Intermediate System to Intermediate System Protocol for Shortest Path Bridging
ISS Internal Sublayer Service (IEEE Std 802.1AC)
IST Internal Spanning Tree
ITB-BEB any valid combination of multi-component Backbone Edge Bridge, e.g., IB-BEB
IVL Independent VLAN Learning (3.111)
LACP Link Aggregation Control Protocol
LAG Link Aggregation Group
LAN Local Area Network (IEEE Std 802)
LBM Loopback Message
LBR Loopback Reply
LFA Loop-Free Alternate
LLC Logical Link Control (ISO/IEC 8802-2)
LLDP Link Layer Discovery Protocol
LMI Layer Management Interface
Local-SID Local Service Instance Identifier
LOM Linktrace Output Multiplexer
LoP Lockout of Protection
LSB least significant bit
LSDB Link State Database
LSP Link State PDU
LT Loose Tree
LTM Linktrace Message
LTR Linktrace Reply
LTS Loose Tree Set
MA Maintenance Association
MAC Medium Access Control (IEEE Std 802)
MAD MRP Attribute Declaration
MAID Maintenance Association Identifier
MAP MRP Attribute Propagation
MCID MST Configuration Identifier
MD Level Maintenance Domain Level
MEP MA Endpoint
MEPID MA Endpoint Identifier
MHF MIP Half Function
MIB Management Information Base (Clause 17)
MIP Maintenance domain Intermediate Point
MIRP Multiple I-SID Registration Protocol
MIRPDU Multiple I-SID Registration Protocol Data Unit
MMRP Multiple MAC Registration Protocol
MMRPDU Multiple MAC Registration Protocol Data Unit
MO Managed Object
MoCA Multimedia over Coax Alliance
MP Maintenance Point
MPDU MAC Protocol Data Unit
MRP Multiple Registration Protocol
MRPDU Multiple Registration Protocol Data Unit
MRTs Maximally Redundant Trees
MS MAC Service
MSAP MAC Service Access Point
MSB most significant bit
MSDU MAC Service Data Unit (IEEE Std 802.1AC)
MSP MAC Status Protocol or MAC status propagation
MSPDU MAC Status Protocol Data Unit
MSPE MAC Status Propagation Entity
MSRP Multiple Stream Registration Protocol
MSRPDU Multiple Stream Registration Protocol Data Unit
MSS MAC Status Shim
MST Multiple Spanning Tree
MST BPDU Multiple Spanning Tree Bridge Protocol Data Unit
MSTI Multiple Spanning Tree Instance
MSTID Multiple Spanning Tree Instance Identifier
MSTP Multiple Spanning Tree Algorithm and Protocol
MT Multi-Topology (Note that “MT state” is used in Clause 10 for the “Empty state.”)
MTID Multi-Topology Identifier
MVRP Multiple VLAN Registration Protocol
MVRPDU Multiple VLAN Registration Protocol Data Unit
NETCONF Network Configuration Protocol
NLPID Network Layer Protocol Identifier
NVE Network Virtualization Edge
NVO3 Network Virtualization Overlays over Layer 3
OAM Operations, Administration, and Maintenance
OUI organizationally unique Identifier
PAE Port Access Entity
PAP Provider Access Port
PATHID Path Identifier
PB Provider Bridge
PBB Provider Backbone Bridge
PBB-TE Provider Backbone Bridge Traffic Engineering
PBBN Provider Backbone Bridged Network
PBN Provider Bridged Network
PCA Path Control Agent
PCE Path Computation Element
PCP Priority Code Point
PCR Path Control and Reservation
PDU protocol data unit
PFC Priority-based Flow Control
PICS Protocol Implementation Conformance Statement (Annex A, Annex B)
PID Protocol Identifier
PIP Provider Instance Port
PLR Point of Local Repair
pMAC preemptable Media Access Control
PNP Provider Network Port
PPVID port and protocol VLAN Identifier
PQoS Parameterized Quality of Service
PSFP Per-Stream Filtering and Policing
PTP IEEE 1588 precision time protocol
PVID port VLAN Identifier
QCN Quantized Congestion Notification protocol
QoS quality of service
RCAP Remote Customer Access Port
RCSI Remote Customer Service Interface
RFM Reflected Frame Message
RP Reaction Point
RPT return path test
RR Reflection Responder
RST Rapid Spanning Tree
RST BPDU Rapid Spanning Tree Bridge Protocol Data Unit
RSTP Rapid Spanning Tree Algorithm and Protocol
RSVP Resource Reservation Protocol
S-TAG S-VLAN tag
S-VID Service VLAN Identifier
S-VLAN Service Virtual Local Area Network
SAP Service Access Point
SBP Station-facing Bridge Port
SCID S-channel Identifier
SCTP Stream Control Transmission Protocol
SDU service data unit
SEB Segment Endpoint Bridge
SEG-ID Segment Identifier
SEP Segment Endpoint Port
SF Signal Fail
SFM Send Frame Message
SIB Segment Intermediate Bridge
SIP Segment Intermediate Port
SMP Segment Monitoring Path
SMP-ID Segment Monitoring Path Identifier
SNAP Subnetwork Access Protocol
SNM Status Notification state machine
SNMP Simple Network Management Protocol
SPB Shortest Path Bridging
SPBM Shortest Path Bridging MAC
SPBV Shortest Path Bridging VID
SPF Shortest Path First
SPT Shortest Path Tree
SPVID Shortest Path VLAN Identifier
SR stream reservation
SR_PVID Stream Reservation Port VLAN Identifier
SRLG Shared Risk Link Group
SRP Stream Reservation Protocol
SST Single Spanning Tree
ST Strict Tree
ST BPDU Spanning Tree Bridge Protocol Data Unit
STM Status Transition state machine
STP Spanning Tree Algorithm and Protocol
SVL Shared VLAN Learning (3.238)
TAI Temps Atomic International—International Atomic Time
TC textual convention
TCI Tag Control Information (9.3)
TCP Transmission Control Protocol
TE Traffic Engineering
TE-MSTID Traffic Engineering Multiple Spanning Tree Instance Identifier
TE-SID Traffic Engineering service instance Identifier
TED Traffic Engineering Database
TESI Traffic Engineering service instance
TLV Type, Length, Value
TPID Tag Protocol Identifier (9.3)
TPMR Two-Port MAC Relay
TSpec traffic specification
TSN Time-Sensitive Networking
TTL time-to-live
UAP Uplink Access Port
UDP User Datagram Protocol
ULP upper layer protocol
ULPDU upper layer protocol data unit
UNI User Network Interface
URP uplink relay port
UUID Universally Unique Identifier
VDP VSI Discovery and Configuration Protocol
VEB virtual edge bridge
VEPA virtual edge port aggregator
VID VLAN Identifier (7.2, 9.3)
VIP Virtual Instance Port
VLAN Virtual Local Area Network
VNI Virtual Network Instance
VNI ID Virtual Network Instance Identifier
VSI Virtual Station Interface
VSIID VSI Instance Identifier
VTID VSI Type Identifier
YANG Yet Another Next Generation22
22YANG is best viewed as a name, not an acronym.
21 A tutorial on the structure and use of EUI-48 identifiers can be found at https://standards.ieee.org/develop/regauth/tut/eui.pdf.
20 See https://standards.ieee.org/develop/regauth/tut/eui.pdf.

Bibliography

Bibliographical references are resources that provide additional or helpful material but do not need to be
understood or used to implement this standard. Reference to these resources is made for informational use
only.
[B1] Alizadeh, M., B. Atikoglu, A. Kabbani, A. Lakshmikantha, R. Pan, B. Prabhakar, and M. Seaman,
“Data Center Transport Mechanisms: Congestion Control Theory and IEEE Standardization,” Proceedings
of the 46th Annual Allerton Conference on Communication, Control and Computing, Urbana-Champaign,
Sept. 2008.
[B2] Asynchronous Transfer Mode (ATM): A collection of equipment and standards used for
telecommunications and data transfer, https://www.itu.int/ITU-T/ and https://www.broadband-forum.org.
[B3] Calculating the Delay Added by Qav Stream Queue,
https://www.ieee802.org/1/files/public/docs2009/av-fuller-queue-delay-calculation-0809-v02.pdf.
[B4] IEC 62439-3:2016, Industrial communications networks—High availability automation
networks—Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy
(HSR).67
[B5] IEEE Std 802™-2014, IEEE Standard for Local and Metropolitan Area Networks—Overview and
Architecture.68, 69
[B6] IEEE Std 802.1AB™-2005, IEEE Standard for Local and metropolitan area networks—Station and
Media Access Control Connectivity Discovery.
[B7] IEEE Std 802.1AB™-2009, IEEE Standard for Local and metropolitan area networks—Station and
Media Access Control Connectivity Discovery.
[B8] IEEE Std 802.1AC™-2016, IEEE Standard for Local and metropolitan area networks—Media Access
Control (MAC) Service Definition.
[B9] IEEE Std 802.1BA™, IEEE Standard for Local and Metropolitan Area Networks—Audio Video
Bridging (AVB) Systems.
[B10] IEEE Std 802.1D™, 1993 Edition [ISO/IEC 10038:1993], IEEE Standard for Information
technology—Telecommunications and information exchange between systems—Local area
networks—Media Access Control (MAC) bridges.
[B11] IEEE Std 802.1D™, 1998 Edition [ISO/IEC 15802-3:1998], IEEE Standard for Information
technology—Telecommunications and information exchange between systems—Local and metropolitan
area networks—Common specifications—Part 3: Media Access Control (MAC) Bridges.
[B12] IEEE Std 802.1D™-2004, IEEE Standard for Local and metropolitan area networks—Media Access
Control (MAC) Bridges.
67 IEC publications are available from the International Electrotechnical Commission (https://www.iec.ch) and the American National
Standards Institute (https://www.ansi.org/).
68 The IEEE standards or products referred to in Annex W are trademarks owned by The Institute of Electrical and Electronics
Engineers, Incorporated.
69 IEEE publications are available from The Institute of Electrical and Electronics Engineers (https://standards.ieee.org/).
[B13] IEEE Std 802.3™-2018, IEEE Standard for Ethernet.
[B14] IEEE Std 802.11™-2016, IEEE Standard for Information technology—Telecommunications and
information exchange between systems—Local and metropolitan area networks—Specific
requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY)
Specifications.
[B15] IEEE Std 1588-2019, IEEE Standard for a Precision Clock Synchronization Protocol for Networked
Measurements and Control Systems.
[B16] IEEE Std 1722™, IEEE Standard for a Transport Protocol for Time-Sensitive Applications in Bridged
Local Area Networks.
NOTE—See also IEC 61883-6:2005, Consumer audio/video equipment—Digital Interface—Part 6: Audio and music
data transmission protocol and IEC 61883-4:2004, Consumer audio/video equipment—Digital Interface—Part 4:
MPEG2-TS data transmission.
[B17] IETF RFC 768 (STD0006), User Datagram Protocol, August 1980.70
[B18] IETF RFC 791, Internet Protocol—DARPA Internet Program Protocol Specification,
September 1981.
[B19] IETF RFC 793 (STD0007), Transmission Control Protocol, September 1981.
[B20] IETF RFC 1321, The MD5 Message-Digest Algorithm, April 1992.
[B21] IETF RFC 1633, Integrated Services in the Internet Architecture: an Overview, June 1994.
[B22] IETF RFC 2210, The Use of RSVP with IETF Integrated Services, September 1997.
[B23] IETF RFC 2211, Specification of the Controlled-Load Network Element Service, September 1997.
[B24] IETF RFC 2212, Specification of Guaranteed Quality of Service, September 1997.
[B25] IETF RFC 2215, General Characterization Parameters for Integrated Service Network Elements,
September 1997.
[B26] IETF RFC 2475, An Architecture for Differentiated Services, December 1998.
[B27] IETF RFC 2597, Assured Forwarding PHB Group, June 1999.
[B28] IETF RFC 2814, SBM (Subnet Bandwidth Manager): A Protocol for RSVP-based Admission Control
over IEEE 802-style Networks, May 2000.
[B29] IETF RFC 2815, Integrated Service Mappings on IEEE 802 Networks, May 2000.
[B30] IETF RFC 2816, A Framework for Integrated Services Over Shared and Switched IEEE 802 LAN
Technologies, May 2000.
[B31] IETF RFC 3031, Multiprotocol Label Switching Architecture, January 2001.
[B32] IETF RFC 3246, An Expedited Forwarding PHB (Per-Hop Behavior), March 2002.
[B33] IETF RFC 3270, Multi-Protocol Label Switching (MPLS) Support of Differentiated Services,
May 2002.
[B34] IETF RFC 4655, A Path Computation Element (PCE)-Based Architecture, August 2006.
70 IETF RFCs are available from the Internet Engineering Task Force (https://www.ietf.org/).
[B35] IETF RFC 4663, Transferring MIB Work from IETF Bridge MIB WG to IEEE 802.1 WG,
September 2006.
[B36] IETF RFC 4960, Stream Control Transmission Protocol, September 2007.
[B37] IETF RFC 5306, Restart Signaling for IS-IS, October 2008.
[B38] IETF RFC 6087, Guidelines for Authors and Reviewers of YANG Data Model Documents,
January 2011.
[B39] IETF RFC 6241, Network Configuration Protocol (NETCONF), June 2011.
[B40] IETF RFC 6242, Using the NETCONF Protocol over Secure Shell (SSH), June 2011.
[B41] IETF RFC 6536, Network Configuration Protocol (NETCONF) Access Control Model, March 2012.
[B42] IETF RFC 6762, Multicast DNS, February 2013.
[B43] IETF RFC 7223, A YANG Data Model for Interface Management, May 2014.
[B44] IETF RFC 7319, IANA Considerations for Connectivity Fault Management (CFM) Code Points,
July 2014.
[B45] IETF RFC 8040, RESTCONF Protocol, January 2017.
[B46] IETF RFC 8200 (STD0086), Internet Protocol, Version 6 (IPv6) Specification, July 2017.
[B47] ITU-T Recommendation G.806, Characteristics of transport equipment—Description methodology
and generic functionality.71
[B48] ITU-T Recommendation G.8031/Y.1342, Ethernet linear protection switching.
[B49] ITU-T Recommendation I.610 (02/1999), B-ISDN operation and maintenance principles and
functions.
[B50] ITU-T Recommendation X.25 (10/1996), Interface between Data Terminal Equipment (DTE) and
Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to
public data networks by dedicated circuit.
[B51] MEF Technical Specification 4 (MEF 4), Metro Ethernet Network Architecture Framework—Part 1:
Generic Framework, May 2004.72
[B52] MEF Technical Specification 16 (MEF 16), Ethernet Local Management Interface (E-LMI),
January 2006.
[B53] MEF Technical Specification 26 (MEF 26), External Network Network Interface (ENNI)—Phase 1,
January 2010.
[B54] MEF 35.1, Service OAM Performance Monitoring Implementation Agreement.
[B55] MoCA MAC/PHY Specification Extensions v1.1, MoCA-M/P-SPEC-V1.1-06162009, June 2009.73
[B56] MoCA MAC/PHY Specification v2.0, MoCA_Specification_v2-131121, November 2013.
71 ITU-T publications are available from the International Telecommunications Union (https://www.itu.int/).
72 MEF publications are available from the MEF Forum (https://www.mef.net/).
73 MoCa publications are available from the Multimedia over Coax Alliance (https://mocalliance.org).
[B57] Multiprotocol Label Switching (MPLS): A standard for label-based forwarding in an IP network. The
standard is specified in several RFCs, (see https://datatracker.ietf.org/doc/charter-ietf-mpls/) and ITU-T
recommendations (see https://www.itu.int/ITU-T/).
[B58] OMG Unified Modeling Language (OMG UML), Version 2.5.1, December 2017.
[B59] Seaman, M., “Preemption and MACsec replay protection,” available at
https://www.ieee802.org/1/files/public/docs2014/ae-seaman-preemption-1114-v04.pdf, November 2014.
[B60] SMPTE 259M-2008, SMPTE Standard for Television—SDTV Digital Signal/Data—Serial Digital
Interface, 2008. See section 8.74
[B61] SMPTE 292M-2008, SMPTE Standard 1.5 Gb/s Signal/Data Serial Interface, 2008.
[B62] SMPTE 424M-2012, SMPTE Standard for Television—3 Gb/s Signal/Data Serial Interface.
[B63] Specht, J., and S. Samii, “Urgency-Based Scheduler for Time-Sensitive Switched Ethernet
Networks,” 28th Euromicro Conference on Real-Time Systems (ECRTS), pp. 75–85, 2016.
[B64] Teener, M. J., “Peristaltic Shaper: updates, multiple speeds,” available at
https://www.ieee802.org/1/files/public/docs2014/new-tsn-mjt-peristaltic-shaper-0114.pdf, January 2014.
[B65] Xu, L., K. Harfoush, and I. Rhee, "Binary increase congestion control (BIC) for fast long-distance
networks," IEEE INFOCOM 2004, vol. 4, pp. 2514-2524, Mar. 2004.74
74 SMPTE publications are available from the Society of Motion Picture and Television Engineers (https://www.smpte.org).

802.1Qcz

Change Annex X (re-numbered from Annex W by the insertion of new Annex W above) as follows, updating cross-references as necessary:
Bibliographical references are resources that provide additional or helpful material but do not need to be understood or used to implement this standard. Reference to these resources is made for informational use only.
[B1] Alizadeh, M., B. Atikoglu, A. Kabbani, A. Lakshmikantha, R. Pan, B. Prabhakar, and M. Seaman, “Data Center Transport Mechanisms: Congestion Control Theory and IEEE Standardization,” Proceedings of the 46th Annual Allerton Conference on Communication, Control and Computing, Urbana-Champaign, Sept. 2008.
[B2] Asynchronous Transfer Mode (ATM): A collection of equipment and standards used for telecommunications and data transfer, https://www.itu.int/ITU-T/ and https://www.broadband-forum.org.
[B3] Calculating the Delay Added by Qav Stream Queue, https://www.ieee802.org/1/files/public/docs2009/av-fuller-queue-delay-calculation-0809-v02.pdf.
[B4] Duato, J., “A Necessary and Sufficient Condition for Deadlock-Free Routing in Cut-Through and Store-and-Forward Networks,” IEEE Transactions on Parallel and Distributed Systems,” vol. 7, no. 8, pp. 841–854, Aug. 1996. doi:10.1109/71.532115.
[B5] Hu, S., Y. Zhu, P. Cheng, C. Guo, K. Tan, J. Padhye, and K. Chen “Tagger: Practical PFC Deadlock Prevention in Data Center Networks,” Proceedings of the 13th International Conference on emerging Networking EXperiments and Technologies (CoNEXT ‘17), ACM, New York, NY, USA, pp. 451–463. doi:10.1145/3143361.3143382.
[B6] IEC 62439-3:2016, Industrial communications networks—High availability automation networks—Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR).19
[B7] IEEE Std 802®TM-2014, IEEE Standard for Local and Metropolitan Area Networks—Overview and Architecture.20, 21
[B8] IEEE Std 802.1ABTM-2005, IEEE Standard for Local and metropolitan area networks—Station and Media Access Control Connectivity Discovery.
[B9] IEEE Std 802.1ABTM-2009, IEEE Standard for Local and metropolitan area networks—Station and Media Access Control Connectivity Discovery.
[B10] IEEE Std 802.1ACTM-2016, IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Service Definition.
[B11] IEEE Std 802.1BATM, IEEE Standard for Local and Metropolitan Area Networks—Audio Video Bridging (AVB) Systems.
19 IEC publications are available from the International Electrotechnical Commission (https://www.iec.ch) and the American National Standards Institute (https://www.ansi.org/).
20 The IEEE standards or products referred to in Annex X are trademarks owned by The Institute of Electrical and Electronics Engineers, Incorporated.
21 IEEE publications are available from The Institute of Electrical and Electronics Engineers (https://standards.ieee.org/).

[B12] IEEE Std 802.1DTM, 1993 Edition [ISO/IEC 10038:1993], IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local area networks—Media Access Control (MAC) bridges.
[B13] IEEE Std 802.1DTM, 1998 Edition [ISO/IEC 15802-3:1998], IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Common specifications—Part 3: Media Access Control (MAC) Bridges.
[B14] IEEE Std 802.1DTM-2004, IEEE Standard for Local and metropolitan area networks—Media Access Control (MAC) Bridges.
[B15] IEEE Std 802.3TM-2018, IEEE Standard for Ethernet.
[B16] IEEE Std 802.11TM-2016, IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications.
[B17] IEEE Std 1588-2019, IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurements and Control Systems.
[B18] IEEE Std 1722TM, IEEE Standard for a Transport Protocol for Time-Sensitive Applications in Bridged Local Area Networks.
NOTE—See also IEC 61883-6:2005, Consumer audio/video equipment—Digital Interface—Part 6: Audio and music data transmission protocol and IEC 61883-4:2004, Consumer audio/video equipment—Digital Interface—Part 4: MPEG2-TS data transmission.
[B17] IETF RFC 768 (STD0006), User Datagram Protocol, August 1980.
[B18] IETF RFC 791, Internet Protocol—DARPA Internet Program Protocol Specification,
September 1981.
[B19] IETF RFC 793 (STD0007), Transmission Control Protocol, September 1981.22
[B20] IETF RFC 1321, The MD5 Message-Digest Algorithm, April 1992.
[B21] IETF RFC 1633, Integrated Services in the Internet Architecture: an Overview, June 1994.
[B22] IETF RFC 2210, The Use of RSVP with IETF Integrated Services, September 1997.
[B23] IETF RFC 2211, Specification of the Controlled-Load Network Element Service, September 1997.
[B24] IETF RFC 2212, Specification of Guaranteed Quality of Service, September 1997.
[B25] IETF RFC 2215, General Characterization Parameters for Integrated Service Network Elements, September 1997.
[B26] IETF RFC 2475, An Architecture for Differentiated Services, December 1998.
[B27] IETF RFC 2597, Assured Forwarding PHB Group, June 1999.
[B28] IETF RFC 2814, SBM (Subnet Bandwidth Manager): A Protocol for RSVP-based Admission Control over IEEE 802-style Networks, May 2000.
[B29] IETF RFC 2815, Integrated Service Mappings on IEEE 802 Networks, May 2000.
22 IETF RFCs are available from the Internet Engineering Task Force (https://www.ietf.org/).
[B30] IETF RFC 2816, A Framework for Integrated Services Over Shared and Switched IEEE 802 LAN Technologies, May 2000.
[B31] IETF RFC 3031, Multiprotocol Label Switching Architecture, January 2001.
[B32] IETF RFC 3246, An Expedited Forwarding PHB (Per-Hop Behavior), March 2002.
[B33] IETF RFC 3270, Multi-Protocol Label Switching (MPLS) Support of Differentiated Services, May 2002.
[B34] IETF RFC 4655, A Path Computation Element (PCE)-Based Architecture, August 2006.
[B35] IETF RFC 4663, Transferring MIB Work from IETF Bridge MIB WG to IEEE 802.1 WG, September 2006.
[B36] IETF RFC 4960, Stream Control Transmission Protocol, September 2007. [B37] IETF RFC 5306, Restart Signaling for IS-IS, October 2008.
[B38] IETF RFC 6087, Guidelines for Authors and Reviewers of YANG Data Model Documents, January 2011.
[B39] IETF RFC 6241, Network Configuration Protocol (NETCONF), June 2011.
[B40] IETF RFC 6242, Using the NETCONF Protocol over Secure Shell (SSH), June 2011.
[B41] IETF RFC 6536, Network Configuration Protocol (NETCONF) Access Control Model, March 2012.
[B42] IETF RFC 6762, Multicast DNS, February 2013.
[B43] IETF RFC 7223, A YANG Data Model for Interface Management, May 2014.
[B44] IETF RFC 7319, IANA Considerations for Connectivity Fault Management (CFM) Code Points, July 2014.
[B45] IETF RFC 7567, IETF Recommendations Regarding Active Queue Management, July 2015.
[B46] IETF RFC 8014, An Architecture for Data-Center Network Virtualization over Layer 3 (NVO3), December 2016.
[B47] IETF RFC 8040, RESTCONF Protocol, January 2017.
[B46] IETF RFC 8200 (STD0086), Internet Protocol, Version 6 (IPv6) Specification, July 2017.
[B48] ITU-T Recommendation G.806, Characteristics of transport equipment—Description methodology and generic functionality.23
[B49] ITU-T Recommendation G.8031/Y.1342, Ethernet linear protection switching.
[B50] ITU-T Recommendation I.610 (02/1999), B-ISDN operation and maintenance principles and functions.
[B51] ITU-T Recommendation X.25 (10/1996), Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit.
23 ITU-T publications are available from the International Telecommunications Union (https://www.itu.int/).
[B52] MEF Technical Specification 4 (MEF 4), Metro Ethernet Network Architecture Framework—Part 1: Generic Framework, May 2004.24
[B53] MEF Technical Specification 16 (MEF 16), Ethernet Local Management Interface (E-LMI), January 2006.
[B54] MEF Technical Specification 26 (MEF 26), External Network Network Interface (ENNI)—Phase 1, January 2010.
[B55] MEF 35.1, Service OAM Performance Monitoring Implementation Agreement.
[B56] MoCA MAC/PHY Specification Extensions v1.1, MoCA-M/P-SPEC-V1.1-06162009, June 2009.25 [B57] MoCA MAC/PHY Specification v2.0, MoCA_Specification_v2-131121, November 2013.
[B58] Multiprotocol Label Switching (MPLS): A standard for label-based forwarding in an IP network. The standard is specified in several RFCs, (see https://datatracker.ietf.org/doc/charter-ietf-mpls/) and ITU-T recommendations (see https://www.itu.int/ITU-T/).
[B59] OMG Unified Modeling Language (OMG UML), Version 2.5.1, December 2017.
[B60] Rocher-Gonzalez, J., J. Escudero-Sahuquillo, P. J. Garcia, F. J. Quiles, “On the Impact of Routing Algorithms in the Effectiveness of Queuing Schemes in High-Performance Interconnection Networks,” 2017 IEEE 25th Annual Symposium on High-Performance Interconnects (HOTI), Santa Clara, CA, 2017, pp. 65–72. doi:10.1109/HOTI.2017.16.
[B61] Seaman, M., “Preemption and MACsec replay protection,” available at https://www.ieee802.org/1/files/public/docs2014/ae-seaman-preemption-1114-v04.pdf, November 2014.
[B62] SMPTE 259M-2008, SMPTE Standard for Television—SDTV Digital Signal/Data—Serial Digital Interface, 2008. See section 8.26
[B63] SMPTE 292M-2008, SMPTE Standard 1.5 Gb/s Signal/Data Serial Interface, 2008.
[B64] SMPTE 424M-2012, SMPTE Standard for Television—3 Gb/s Signal/Data Serial Interface.
[B65] Specht, J., and S. Samii, “Urgency-Based Scheduler for Time-Sensitive Switched Ethernet Networks,” 28th Euromicro Conference on Real-Time Systems (ECRTS), pp. 75–85, 2016.
[B66] Teener, M. J., “Peristaltic Shaper: updates, multiple speeds,” available at https://www.ieee802.org/1/files/public/docs2014/new-tsn-mjt-peristaltic-shaper-0114.pdf, January 2014.
[B67] Xu, L., K. Harfoush, and I. Rhee, “Binary increase congestion control (BIC) for fast long-distance networks,” IEEE INFOCOM 2004, vol. 4, pp. 2514-2524, Mar. 2004.
[B68] Zhu, Y., H.Eran, D. Firestone, C. Guo, M. Lipshteyn, Y. Liron, J. Padhye, S. Raindel, M. H. Yahia, and M. Zhang, 2015. “Congestion Control for Large-Scale RDMA Deployments,” ACM SIGCOMM Computer Communication Review, 45(4), pp. 523–536. doi:10.1145/2785956.2787484.
24 MEF publications are available from the MEF Forum (https://www.mef.net/).
25 MoCa publications are available from the Multimedia over Coax Alliance (https://mocalliance.org).
26 SMPTE publications are available from the Society of Motion Picture and Television Engineers (https://www.smpte.org).

Reference

一覧の一覧( The directory of directories of mine.) Qiita(100)
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日本語（０）一欄
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OSEK OS設計の基礎　OSEK(100)
https://qiita.com/kaizen_nagoya/items/7528a22a14242d2d58a3

Error一覧
https://qiita.com/kaizen_nagoya/items/48b6cbc8d68eae2c42b8

仮説（0）一覧（目標100現在40）
https://qiita.com/kaizen_nagoya/items/f000506fe1837b3590df

安全（0）安全工学シンポジウムに向けて: 21
https://qiita.com/kaizen_nagoya/items/c5d78f3def8195cb2409

＜この記事は個人の過去の経験に基づく個人の感想です。現在所属する組織、業務とは関係がありません。＞
This article is an individual impression based on the individual's experience. It has nothing to do with the organization or business to which I currently belong.

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