[ 1819.200116] br0: port 1(dummy0) entered blocking state
[ 1819.200158] br0: port 1(dummy0) entered disabled state
[ 1819.200193] dummy0: entered allmulticast mode
[ 1819.200250] dummy0: entered promiscuous mode
[ 1819.203885] br0: port 1(dummy0) entered blocking state
[ 1819.203922] br0: port 1(dummy0) entered forwarding state
[ 1819.461968] dummy0: left allmulticast mode
[ 1819.462002] dummy0: left promiscuous mode
[ 1819.462037] br0: port 1(dummy0) entered disabled state