[ 2142.976044][T21148] br0: port 1(dummy0) entered blocking state
[ 2142.976333][T21148] br0: port 1(dummy0) entered disabled state
[ 2142.976923][T21148] dummy0: entered allmulticast mode
[ 2142.978015][T21148] dummy0: entered promiscuous mode
[ 2143.010253][T21149] br0: port 1(dummy0) entered blocking state
[ 2143.010920][T21149] br0: port 1(dummy0) entered forwarding state
[ 2145.485597][   T70] dummy0: left allmulticast mode
[ 2145.486761][   T70] dummy0: left promiscuous mode
[ 2145.487399][   T70] br0: port 1(dummy0) entered disabled state