[ 2233.458198][T14363] br0: port 1(dummy0) entered blocking state
[ 2233.458523][T14363] br0: port 1(dummy0) entered disabled state
[ 2233.458795][T14363] dummy0: entered allmulticast mode
[ 2233.459764][T14363] dummy0: entered promiscuous mode
[ 2233.495059][T14364] br0: port 1(dummy0) entered blocking state
[ 2233.495408][T14364] br0: port 1(dummy0) entered forwarding state
[ 2236.039369][   T12] dummy0: left allmulticast mode
[ 2236.039721][   T12] dummy0: left promiscuous mode
[ 2236.040082][   T12] br0: port 1(dummy0) entered disabled state