[ 1731.096364] br0: port 1(dummy0) entered blocking state
[ 1731.096405] br0: port 1(dummy0) entered disabled state
[ 1731.096438] dummy0: entered allmulticast mode
[ 1731.096486] dummy0: entered promiscuous mode
[ 1731.099086] br0: port 1(dummy0) entered blocking state
[ 1731.099147] br0: port 1(dummy0) entered forwarding state
[ 1731.286320] dummy0: left allmulticast mode
[ 1731.286351] dummy0: left promiscuous mode
[ 1731.286375] br0: port 1(dummy0) entered disabled state