[ 1911.863037] br0: port 1(dummy0) entered blocking state
[ 1911.863089] br0: port 1(dummy0) entered disabled state
[ 1911.863128] dummy0: entered allmulticast mode
[ 1911.863179] dummy0: entered promiscuous mode
[ 1911.866666] br0: port 1(dummy0) entered blocking state
[ 1911.866700] br0: port 1(dummy0) entered forwarding state
[ 1912.109374] dummy0: left allmulticast mode
[ 1912.109437] dummy0: left promiscuous mode
[ 1912.109497] br0: port 1(dummy0) entered disabled state