[ 1594.730331] br0: port 1(dummy0) entered blocking state
[ 1594.730376] br0: port 1(dummy0) entered disabled state
[ 1594.730416] dummy0: entered allmulticast mode
[ 1594.730470] dummy0: entered promiscuous mode
[ 1594.733155] br0: port 1(dummy0) entered blocking state
[ 1594.733192] br0: port 1(dummy0) entered forwarding state
[ 1594.931731] dummy0: left allmulticast mode
[ 1594.931778] dummy0: left promiscuous mode
[ 1594.931810] br0: port 1(dummy0) entered disabled state