[ 1657.488732] br0: port 1(dummy0) entered blocking state
[ 1657.488778] br0: port 1(dummy0) entered disabled state
[ 1657.488813] dummy0: entered allmulticast mode
[ 1657.488877] dummy0: entered promiscuous mode
[ 1657.491647] br0: port 1(dummy0) entered blocking state
[ 1657.491676] br0: port 1(dummy0) entered forwarding state
[ 1657.683910] dummy0: left allmulticast mode
[ 1657.683993] dummy0: left promiscuous mode
[ 1657.684081] br0: port 1(dummy0) entered disabled state