[ 2105.461873][T28003] br0: port 1(dummy0) entered blocking state
[ 2105.462121][T28003] br0: port 1(dummy0) entered disabled state
[ 2105.462362][T28003] dummy0: entered allmulticast mode
[ 2105.463336][T28003] dummy0: entered promiscuous mode
[ 2105.491794][T28004] br0: port 1(dummy0) entered blocking state
[ 2105.492161][T28004] br0: port 1(dummy0) entered forwarding state
[ 2107.511043][   T12] dummy0: left allmulticast mode
[ 2107.511223][   T12] dummy0: left promiscuous mode
[ 2107.511436][   T12] br0: port 1(dummy0) entered disabled state