kayobe

  1. Bug #2039947
  2. Comment #4

Comment 4 for bug 2039947

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to kayobe (master)

Reviewed: https://review.opendev.org/c/openstack/kayobe/+/898905
Committed: https://opendev.org/openstack/kayobe/commit/ee63b3253dedaf62cc321f5b29080d7e7c459a99
Submitter: "Zuul (22348)"
Branch: master

commit ee63b3253dedaf62cc321f5b29080d7e7c459a99
Author: Pierre Riteau <email address hidden>
Date: Fri Oct 20 14:51:37 2023 +0200

    Fix MTU of NetworkManager bridge VLAN interfaces

    We are seeing an issue on Rocky Linux 9 where VLAN interfaces on bridges
    have their MTU set to MTU-1 after rebooting. This is likely related to
    how MTU is set by NetworkManager for bridges: it first sets the MTU to
    MTU-1 before setting it to the correct value [1].

    We can work around this issue by not explicitly setting the MTU
    configuration on the VLAN interface if it is the same as the parent
    bridge. It will be automatically inherited from the parent.

    [1] https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/864872e9a8c694ee7472154bf45f869040310b71

    Closes-Bug: #2039947
    Change-Id: I23366f4de7842e7c2fe40e431fac76f26e9892de