[ 1940.998434] br0: port 1(dummy0) entered blocking state
[ 1940.998514] br0: port 1(dummy0) entered disabled state
[ 1940.998581] dummy0: entered allmulticast mode
[ 1940.998662] dummy0: entered promiscuous mode
[ 1941.002132] br0: port 1(dummy0) entered blocking state
[ 1941.002172] br0: port 1(dummy0) entered forwarding state
[ 1941.253034] dummy0: left allmulticast mode
[ 1941.253105] dummy0: left promiscuous mode
[ 1941.253215] br0: port 1(dummy0) entered disabled state