[ 2136.294405][T16653] br0: port 1(dummy0) entered blocking state
[ 2136.294705][T16653] br0: port 1(dummy0) entered disabled state
[ 2136.294987][T16653] dummy0: entered allmulticast mode
[ 2136.296088][T16653] dummy0: entered promiscuous mode
[ 2136.324259][T16654] br0: port 1(dummy0) entered blocking state
[ 2136.324624][T16654] br0: port 1(dummy0) entered forwarding state
[ 2138.771655][   T12] dummy0: left allmulticast mode
[ 2138.772771][   T12] dummy0: left promiscuous mode
[ 2138.773172][   T12] br0: port 1(dummy0) entered disabled state