[Openstack] Directional network performance issues with Neutron + OpenvSwitch

James Page james.page at canonical.com
Wed Oct 2 16:51:00 UTC 2013


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On 02/10/13 17:28, Jay Pipes wrote:
>> 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?
> 
> I mean on the instance vNICs.

Yeah - thats what I thought - that makes no difference either.

- -- 
James Page
Technical Lead
Ubuntu Server Team
james.page at canonical.com
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