[ 1672.284088] br0: port 1(dummy0) entered blocking state
[ 1672.284156] br0: port 1(dummy0) entered disabled state
[ 1672.284222] dummy0: entered allmulticast mode
[ 1672.284304] dummy0: entered promiscuous mode
[ 1672.287177] br0: port 1(dummy0) entered blocking state
[ 1672.287207] br0: port 1(dummy0) entered forwarding state
[ 1672.472130] dummy0: left allmulticast mode
[ 1672.472161] dummy0: left promiscuous mode
[ 1672.472194] br0: port 1(dummy0) entered disabled state