Comment 0 for bug 1791101

Revision history for this message
Chris MacNaughton (chris.macnaughton) wrote : When attaching neutron-gateway to abridge onto a jumbo-framed network, the veth is 1500

The file created to connect the veth to the bridge in https://github.com/juju/charm-helpers/blob/master/charmhelpers/contrib/network/ovs/__init__.py#L35-L40 needs additional lines to deal with networks using differing MTUs. On a jumbo-frame network, the guests connected through the gateway will be unable to receive large packets without adding in:

    pre-up ip link set veth-br0 mtu 9000
    pre-up ip link set veth-br-ex mtu 9000
    pre-up ip link set br0 mtu 9000