[ 1891.513032][T18845] br0: port 1(dummy0) entered blocking state
[ 1891.513258][T18845] br0: port 1(dummy0) entered disabled state
[ 1891.513489][T18845] dummy0: entered allmulticast mode
[ 1891.514419][T18845] dummy0: entered promiscuous mode
[ 1891.545313][T18846] br0: port 1(dummy0) entered blocking state
[ 1891.545533][T18846] br0: port 1(dummy0) entered forwarding state
[ 1893.489510][   T12] dummy0: left allmulticast mode
[ 1893.489703][   T12] dummy0: left promiscuous mode
[ 1893.489923][   T12] br0: port 1(dummy0) entered disabled state