[ 2175.321105][T31527] br0: port 1(dummy0) entered blocking state
[ 2175.321300][T31527] br0: port 1(dummy0) entered disabled state
[ 2175.321470][T31527] dummy0: entered allmulticast mode
[ 2175.322389][T31527] dummy0: entered promiscuous mode
[ 2175.347961][T31528] br0: port 1(dummy0) entered blocking state
[ 2175.348153][T31528] br0: port 1(dummy0) entered forwarding state
[ 2177.390814][   T12] dummy0: left allmulticast mode
[ 2177.390975][   T12] dummy0: left promiscuous mode
[ 2177.391191][   T12] br0: port 1(dummy0) entered disabled state