[ 1978.760010][ T3761] br0: port 1(dummy0) entered blocking state
[ 1978.760204][ T3761] br0: port 1(dummy0) entered disabled state
[ 1978.760366][ T3761] dummy0: entered allmulticast mode
[ 1978.761851][ T3761] dummy0: entered promiscuous mode
[ 1978.799189][ T3762] br0: port 1(dummy0) entered blocking state
[ 1978.799437][ T3762] br0: port 1(dummy0) entered forwarding state
[ 1980.714065][   T12] dummy0: left allmulticast mode
[ 1980.714820][   T12] dummy0: left promiscuous mode
[ 1980.715070][   T12] br0: port 1(dummy0) entered disabled state