[ 1744.711103] br0: port 1(dummy0) entered blocking state
[ 1744.711139] br0: port 1(dummy0) entered disabled state
[ 1744.711168] dummy0: entered allmulticast mode
[ 1744.711210] dummy0: entered promiscuous mode
[ 1744.714884] br0: port 1(dummy0) entered blocking state
[ 1744.714934] br0: port 1(dummy0) entered forwarding state
[ 1744.998910] dummy0: left allmulticast mode
[ 1744.998938] dummy0: left promiscuous mode
[ 1744.998960] br0: port 1(dummy0) entered disabled state