What are the OVS (openvswitch) internal ports used for? Why are they reported as down or UNKNOWN? Why is their MTU at 1500 although jumbo frames are used?
Issue
What are the OVS (openvswitch) internal ports used for? Why are they reported as down or UNKNOWN? Why is their MTU at 1500 although jumbo frames are used?
[root@overcloud-controller-0 ~]# ip a | egrep 'ovs|br-' | grep -v eth
6: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
7: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
13: br-int: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
14: br-tun: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN
Environment
Red Hat OpenStack Platform 10 to 12
OVS 2.6.1
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