[ 2179.649476][T10593] br0: port 1(dummy0) entered blocking state
[ 2179.650350][T10593] br0: port 1(dummy0) entered disabled state
[ 2179.650566][T10593] dummy0: entered allmulticast mode
[ 2179.651845][T10593] dummy0: entered promiscuous mode
[ 2179.687561][T10594] br0: port 1(dummy0) entered blocking state
[ 2179.687740][T10594] br0: port 1(dummy0) entered forwarding state
[ 2181.682367][   T12] dummy0: left allmulticast mode
[ 2181.683257][   T12] dummy0: left promiscuous mode
[ 2181.683499][   T12] br0: port 1(dummy0) entered disabled state