[ 2374.700664][T31709] br0: port 1(dummy0) entered blocking state
[ 2374.700979][T31709] br0: port 1(dummy0) entered disabled state
[ 2374.701256][T31709] dummy0: entered allmulticast mode
[ 2374.702253][T31709] dummy0: entered promiscuous mode
[ 2374.728174][T31710] br0: port 1(dummy0) entered blocking state
[ 2374.728479][T31710] br0: port 1(dummy0) entered forwarding state
[ 2377.195806][   T12] dummy0: left allmulticast mode
[ 2377.196238][   T12] dummy0: left promiscuous mode
[ 2377.196567][   T12] br0: port 1(dummy0) entered disabled state