From f8707070ad8d6f40e2b9f54c5a3a511d781b6747 Mon Sep 17 00:00:00 2001 From: mudpuppy12 Date: Wed, 6 Jul 2016 12:22:50 -0500 Subject: [PATCH] Doc: Update documentation for lxc_net_mtu config Updated documentation to include how to configure lxc_net_mtu Change-Id: I620d6df5ba80c4ce5ba9bcfabc9c234520b153f2 Closes-Bug: #1595631 --- .../configure-networking.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/doc/source/install-guide-revised-draft/configure-networking.rst b/doc/source/install-guide-revised-draft/configure-networking.rst index b3b4e26235..7317d5360a 100644 --- a/doc/source/install-guide-revised-draft/configure-networking.rst +++ b/doc/source/install-guide-revised-draft/configure-networking.rst @@ -278,6 +278,19 @@ network to 9000. .. _jumbo frames: https://en.wikipedia.org/wiki/Jumbo_frame .. _neutron MTU considerations: http://docs.openstack.org/mitaka/networking-guide/adv-config-mtu.html +Setting an MTU on a default lxc bridge (lxcbr0) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +To modify a container MTU it is also required to set ``lxc_net_mtu`` to +a value other than 1500 in ``user_variables.yml``. It will also be necessary +to modify the ``provider_networks`` subsection to reflect the change. + +This will define the mtu on the lxcbr0 interface. An ifup/ifdown will +be required if the interface is already up for the changes to take effect. + + + + -------------- .. include:: navigation.txt