[ 2222.221610][T12493] br0: port 1(dummy0) entered blocking state
[ 2222.221860][T12493] br0: port 1(dummy0) entered disabled state
[ 2222.222083][T12493] dummy0: entered allmulticast mode
[ 2222.223150][T12493] dummy0: entered promiscuous mode
[ 2222.251941][T12494] br0: port 1(dummy0) entered blocking state
[ 2222.252188][T12494] br0: port 1(dummy0) entered forwarding state
[ 2224.588557][   T12] dummy0: left allmulticast mode
[ 2224.590737][   T12] dummy0: left promiscuous mode
[ 2224.590987][   T12] br0: port 1(dummy0) entered disabled state