[ 1784.367937] br0: port 1(dummy0) entered blocking state
[ 1784.367971] br0: port 1(dummy0) entered disabled state
[ 1784.367996] dummy0: entered allmulticast mode
[ 1784.368038] dummy0: entered promiscuous mode
[ 1784.371038] br0: port 1(dummy0) entered blocking state
[ 1784.371083] br0: port 1(dummy0) entered forwarding state
[ 1784.582298] dummy0: left allmulticast mode
[ 1784.582321] dummy0: left promiscuous mode
[ 1784.582344] br0: port 1(dummy0) entered disabled state