queens linuxbridge tap interface mtu not set to jumbo

asked 2018-06-23 10:19:52 -0600

luowei gravatar image

On a standard Queens Ubuntu 18.04 tutorial build, the linuxbridge provider tap interface mtus are not being set to jumbo.

Settings for jumbo mtu are configured as usual:

neutron.conf:global_physnet_mtu = 9000
ml2_conf.ini:path_mtu = 9000
ml2_conf.ini:physical_network_mtus = provider:9000

Manually forcing the tap interface mtu to 9000 with ifconfig after the fact works.

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answered 2018-06-23 11:18:22 -0600

luowei gravatar image

This was solved by deleting and recreating the provider network. The provider network had been created before the neutron jumbo configuration was applied and hence was set to a mtu of 1500.

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Asked: 2018-06-23 10:19:52 -0600

Seen: 220 times

Last updated: Jun 23 '18