[ 2268.417030][T16187] br0: port 1(dummy0) entered blocking state
[ 2268.417384][T16187] br0: port 1(dummy0) entered disabled state
[ 2268.417707][T16187] dummy0: entered allmulticast mode
[ 2268.418757][T16187] dummy0: entered promiscuous mode
[ 2268.445715][T16188] br0: port 1(dummy0) entered blocking state
[ 2268.446016][T16188] br0: port 1(dummy0) entered forwarding state
[ 2270.886072][   T12] dummy0: left allmulticast mode
[ 2270.886333][   T12] dummy0: left promiscuous mode
[ 2270.886649][   T12] br0: port 1(dummy0) entered disabled state