I added a rule in udev to bring up the port directly with brctl addbr br0 and now everything works.
But I don't know the cause. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to vlan in Ubuntu. https://bugs.launchpad.net/bugs/1003656 Title: bridge-utils/vlan udev hooks prevent execution of upstart hook, slowing down boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bridge-utils/+bug/1003656/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs