[ 1707.419423] br0: port 1(dummy0) entered blocking state
[ 1707.419493] br0: port 1(dummy0) entered disabled state
[ 1707.419559] dummy0: entered allmulticast mode
[ 1707.419643] dummy0: entered promiscuous mode
[ 1707.422422] br0: port 1(dummy0) entered blocking state
[ 1707.422484] br0: port 1(dummy0) entered forwarding state
[ 1707.616393] dummy0: left allmulticast mode
[ 1707.616427] dummy0: left promiscuous mode
[ 1707.616459] br0: port 1(dummy0) entered disabled state