Comment 0 for bug 1355813

Revision history for this message
James Page (james-page) wrote : LXC containers reset bridge MTU on start/restart

Context:

juju + MAAS deployed OpenStack environment, misc services deployed under LXC on the bootstrap node, interfaces configured for jumbo frames - note that I had to manually set the LXC container interfaces to mtu 9000 before the bridge would do the same.

Action:

Reboot on of the containers; MTU on br0 resets from 9000 -> 1500.

This feels like more of a 'we need a better way to orchestrate MTU configuration across different services' so raising tasks for MAAS and Juju as well.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lxc 1.0.5-0ubuntu0.1
ProcVersionSignature: User Name 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
Date: Tue Aug 12 13:26:00 2014
KernLog:

SourcePackage: lxc
UpgradeStatus: No upgrade log present (probably fresh install)
defaults.conf:
 lxc.network.type = veth
 lxc.network.link = lxcbr0
 lxc.network.flags = up
 lxc.network.hwaddr = 00:16:3e:xx:xx:xx
lxcsyslog: