neutron

  1. Bug #1542503
  2. Comment #7

Comment 7 for bug 1542503

Revision history for this message
Thiago Martins (martinx) wrote : Re: Lacking mechanism to provide proper MTU to instances

I have Networking OVN up and running, it is awesome!

Now, I need jumbo frames... Not working.

The underlying data path (where GENEVE in running on), is configured correctly, I can test it with:

ping -M do -s 8500 $DEST

Where $DEST is the other(s) Compute Node(s).

So, from a Compute Node to the others, jumbo frames is enabled.

Neutron and ML2 are configured to 9000.

The Instances received its MTU from OVN DHCP = 8942, but, from an Instance, I can't use jumbo frames to "ping" other Instances!

I can see that both "br-int" and the Instance's "tapXXX" interfaces are still with MTU=1500.

Is this the problem?

If yes, is there any workaround?