[ 1558.055012] br0: port 1(dummy0) entered blocking state
[ 1558.055080] br0: port 1(dummy0) entered disabled state
[ 1558.055152] dummy0: entered allmulticast mode
[ 1558.055230] dummy0: entered promiscuous mode
[ 1558.057679] br0: port 1(dummy0) entered blocking state
[ 1558.057716] br0: port 1(dummy0) entered forwarding state
[ 1558.218860] dummy0: left allmulticast mode
[ 1558.218894] dummy0: left promiscuous mode
[ 1558.218922] br0: port 1(dummy0) entered disabled state