[ 2001.707214][ T5287] br0: port 1(dummy0) entered blocking state
[ 2001.707451][ T5287] br0: port 1(dummy0) entered disabled state
[ 2001.707684][ T5287] dummy0: entered allmulticast mode
[ 2001.708622][ T5287] dummy0: entered promiscuous mode
[ 2001.738768][ T5288] br0: port 1(dummy0) entered blocking state
[ 2001.738979][ T5288] br0: port 1(dummy0) entered forwarding state
[ 2003.716736][   T12] dummy0: left allmulticast mode
[ 2003.716932][   T12] dummy0: left promiscuous mode
[ 2003.717165][   T12] br0: port 1(dummy0) entered disabled state