Qiita Teams that are logged in
You are not logged in to any team

Log in to Qiita Team
OrganizationAdvent CalendarQiitadon (β)
Qiita JobsQiita ZineQiita Blog
Help us understand the problem. What is going on with this article?

Memo: Azure ネットワークとSmart NIC(FPGA )の利用方法

More than 3 years have passed since last update.

Memo from "Microsoft's Production Configurable Cloud".
By Mark Russinovich, CTO MS Azure.


How much trials were required to bring FPGA usable in production?

  • Two generations were not usable for production. (v0, v1)
  • 3rd generation, Catapult V2, was used in production.
    • Catapult V2 : All traffic go through FPGA. (40Gbps QSFP)
    • Slide 21: catapult-v2.PNG

Use cases which might be able to apply in private cloud

Accelerated Networking: bypass virtual switch by offloading to Intelligent NIC.

  • So called "VFP: Virtual Filtering Platform"
  • Flow based policy (match / action) (ex: sending to )
  • Encryption
  • Load Balancing (IP NAT, MAC re-write)
  • Filtering, ACL
  • Tenant VM plumbing (VNet Policy Routing)
  • Tunnel termination (encap/decap)
  • Slide 17: vfp-flowtables.PNG

Reduce CPU to CPU (=~VM to VM) latency under 20us for 12 hops!!

  • Using LTL: Lightweight Transport Layer.
  • But could be considered as an approach to reduce latency. (i.e. offload TCP to Intelligent NIC)
  • Slide 33: latency-over-ltl.PNG
Interested in Virtualization, IP networking and performance tuning. But most of the time drinking wine or Belgian beer.
Why not register and get more from Qiita?
  1. We will deliver articles that match you
    By following users and tags, you can catch up information on technical fields that you are interested in as a whole
  2. you can read useful information later efficiently
    By "stocking" the articles you like, you can search right away