BGPネイバーみつけられないときメモ
DEV-ECMP4# ping 20.0.0.5
PING 20.0.0.5 (20.0.0.5) 56(84) bytes of data.
64 bytes from 20.0.0.5: icmp_seq=1 ttl=64 time=0.076 ms
^C
--- 20.0.0.5 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.076/0.076/0.076/0.000 ms
DEV-ECMP4# show ip bgp summary
IPv4 Unicast Summary (VRF default):
BGP router identifier 172.16.0.4, local AS number 65001 vrf-id 0
BGP table version 0
RIB entries 0, using 0 bytes of memory
Peers 2, using 1448 KiB of memory
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd PfxSnt Desc
20.0.0.1 4 65000 9 9 0 0 0 00:06:04 (Policy) (Policy) N/A
20.0.0.5 4 65000 0 0 0 0 0 never Active 0 N/A
Total number of neighbors 2
DEV-ECMP4# show ip bgp neighbors 20.0.0.5
BGP neighbor is 20.0.0.5, remote AS 65000, local AS 65001, external link
Local Role: undefined
Remote Role: undefined
BGP version 4, remote router ID 0.0.0.0, local router ID 172.16.0.4
BGP state = Active
Last read 00:08:41, Last write never
Hold time is 180 seconds, keepalive interval is 60 seconds
Configured hold time is 180 seconds, keepalive interval is 60 seconds
Configured conditional advertisements interval is 60 seconds
Graceful restart information:
Local GR Mode: Helper*
Remote GR Mode: NotApplicable
R bit: False
N bit: False
Timers:
Configured Restart Time(sec): 120
Received Restart Time(sec): 0
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 0 0
Notifications: 0 0
Updates: 0 0
Keepalives: 0 0
Route Refresh: 0 0
Capability: 0 0
Total: 0 0
Minimum time between advertisement runs is 0 seconds
For address family: IPv4 Unicast
Not part of any update group
Community attribute sent to this neighbor(all)
Inbound updates discarded due to missing policy
Outbound updates discarded due to missing policy
0 accepted prefixes
Connections established 0; dropped 0
Last reset 00:08:41, Waiting for NHT
External BGP neighbor may be up to 1 hops away.
BGP Connect Retry Timer in Seconds: 120
Next connect timer due in 80 seconds
Read thread: off Write thread: off FD used: -1
20.0.0.5 へのルーティングがあるか確認
DEV-ECMP4# show ip route 20.0.0.5
Routing entry for 20.0.0.4/30
Known via "ospf", distance 110, metric 20, best
Last update 01:30:45 ago
* 10.0.0.5, via eth0, weight 1
対向でも確認する
DEV-ECMP2# show ip bgp summary
IPv4 Unicast Summary (VRF default):
BGP router identifier 172.16.0.2, local AS number 65000 vrf-id 0
BGP table version 0
RIB entries 0, using 0 bytes of memory
Peers 2, using 1448 KiB of memory
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd PfxSnt Desc
10.0.0.6 4 65001 0 5 0 0 0 never Active 0 N/A
20.0.0.6 4 65001 0 5 0 0 0 never Active 0 N/A
Total number of neighbors 2
show running-config
ネイバーの設定が間違っていた
no neighbor x.x.x.x
neighbor x.x.x.x