* vif-openvswitch.
@ 2017-03-24 14:35 Alvin Starr
0 siblings, 0 replies; only message in thread
From: Alvin Starr @ 2017-03-24 14:35 UTC (permalink / raw)
To: xen-devel
I recently ran into a situation where I wanted to change the MTU of an
openvswitch bridge.
I modified /etc/xen/scripts/vif-openvswitch to set the MTU on the vif
interfaces before they are attached to the bridge.
I am not sure if this is the best solution.
The MTU on an OVS bridge becomes the MTU of the smallest MTU attahced
device which is fine but it seems that if you detach the smallest device
from the bridge that the MTU stays at that lower level.
I have not tested this small MTU stickiness but it confused me for a while.
My patch sets the MTU of the new vif device from the MTU of the bridge
which works well so long as nobody attaches a smaller MTU device.
I am not sure if this is the right solution but there should be some way
to set the MTU of the bridge and vif devices.
--
Alvin Starr || voice: (905)513-7688
Netvel Inc. || Cell: (416)806-0133
alvin@netvel.net ||
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