[Openstack] Directional network performance issues with Neutron + OpenvSwitch

James Page james.page at ubuntu.com
Wed Oct 2 16:17:20 UTC 2013


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Hi Jay

On 02/10/13 16:37, Jay Pipes wrote:
> Hi James, have you tried setting the MTU to a lower number of
> bytes, instead of a higher-than-1500 setting? Say... 1454 instead
> of 1546?
> 
> Curious to see if that resolves the issue. If it does, then
> perhaps there is a path somewhere that had a <1546 PMTU?

Do you mean in instances, or on the physical servers?

For context I hit this problem prior to tweaking MTU's (defaults of
1500 everywhere).


- -- 
James Page
Ubuntu and Debian Developer
james.page at ubuntu.com
jamespage at debian.org
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