[ 2283.470838][T18494] br0: port 1(dummy0) entered blocking state
[ 2283.471724][T18494] br0: port 1(dummy0) entered disabled state
[ 2283.472080][T18494] dummy0: entered allmulticast mode
[ 2283.473143][T18494] dummy0: entered promiscuous mode
[ 2283.500881][T18495] br0: port 1(dummy0) entered blocking state
[ 2283.501424][T18495] br0: port 1(dummy0) entered forwarding state
[ 2286.073891][   T12] dummy0: left allmulticast mode
[ 2286.074422][   T12] dummy0: left promiscuous mode
[ 2286.074772][   T12] br0: port 1(dummy0) entered disabled state