[ 2070.256957][T15903] br0: port 1(dummy0) entered blocking state
[ 2070.257158][T15903] br0: port 1(dummy0) entered disabled state
[ 2070.257335][T15903] dummy0: entered allmulticast mode
[ 2070.258243][T15903] dummy0: entered promiscuous mode
[ 2070.281224][T15904] br0: port 1(dummy0) entered blocking state
[ 2070.281559][T15904] br0: port 1(dummy0) entered forwarding state
[ 2072.193398][   T12] dummy0: left allmulticast mode
[ 2072.193683][   T12] dummy0: left promiscuous mode
[ 2072.193899][   T12] br0: port 1(dummy0) entered disabled state