[ 1993.142950][T28563] br0: port 1(dummy0) entered blocking state
[ 1993.143134][T28563] br0: port 1(dummy0) entered disabled state
[ 1993.143294][T28563] dummy0: entered allmulticast mode
[ 1993.144175][T28563] dummy0: entered promiscuous mode
[ 1993.170945][T28564] br0: port 1(dummy0) entered blocking state
[ 1993.171122][T28564] br0: port 1(dummy0) entered forwarding state
[ 1995.058715][   T12] dummy0: left allmulticast mode
[ 1995.059532][   T12] dummy0: left promiscuous mode
[ 1995.059780][   T12] br0: port 1(dummy0) entered disabled state