[ 1710.795581] br0: port 1(dummy0) entered blocking state
[ 1710.795658] br0: port 1(dummy0) entered disabled state
[ 1710.795730] dummy0: entered allmulticast mode
[ 1710.795818] dummy0: entered promiscuous mode
[ 1710.798733] br0: port 1(dummy0) entered blocking state
[ 1710.798798] br0: port 1(dummy0) entered forwarding state
[ 1710.983321] dummy0: left allmulticast mode
[ 1710.983390] dummy0: left promiscuous mode
[ 1710.983480] br0: port 1(dummy0) entered disabled state