[ 1875.557104] br0: port 1(dummy0) entered blocking state
[ 1875.557136] br0: port 1(dummy0) entered disabled state
[ 1875.557162] dummy0: entered allmulticast mode
[ 1875.557210] dummy0: entered promiscuous mode
[ 1875.560752] br0: port 1(dummy0) entered blocking state
[ 1875.560777] br0: port 1(dummy0) entered forwarding state
[ 1875.811435] dummy0: left allmulticast mode
[ 1875.811495] dummy0: left promiscuous mode
[ 1875.811547] br0: port 1(dummy0) entered disabled state