yahoo-eng-team team mailing list archive

[Viktor Gyokeres <2116837@xxxxxxxxxxxxxxxxxx>]

** Also affects: neutron
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/2116837

Title:
  Performance Tuning for Nested VXLAN Tunnel in OpenStack (OVS Backend)

Status in networking-ovn:
  Incomplete
Status in neutron:
  New

Bug description:
  Hi everyone,

  I'm building a private cloud home lab using OpenStack with Open
  vSwitch (OVS) as the backend for Neutron networking. The overlay
  network is based on VXLAN.

  In a basic test using iPerf between two VMs on the same VXLAN network,
  I can achieve throughput up to 5 Gbps.

  However, when I configure a VXLAN tunnel manually between the two VMs
  (i.e., nested VXLAN within the existing Neutron VXLAN overlay), the
  maximum throughput drops significantly to around 1 Gbps. I’ve already
  increased the allocated CPU resources to the VMs, but there was no
  noticeable improvement.

  Has anyone experienced similar performance issues with nested VXLAN
  setups on OpenStack? Are there any recommended tuning parameters or
  best practices to improve performance in this case?

  Thanks in advance for any insights!

To manage notifications about this bug go to:
https://bugs.launchpad.net/networking-ovn/+bug/2116837/+subscriptions