[ 2118.909492][T11543] br0: port 1(dummy0) entered blocking state
[ 2118.909710][T11543] br0: port 1(dummy0) entered disabled state
[ 2118.909885][T11543] dummy0: entered allmulticast mode
[ 2118.910929][T11543] dummy0: entered promiscuous mode
[ 2118.932159][T11544] br0: port 1(dummy0) entered blocking state
[ 2118.932419][T11544] br0: port 1(dummy0) entered forwarding state
[ 2121.008043][   T12] dummy0: left allmulticast mode
[ 2121.008844][   T12] dummy0: left promiscuous mode
[ 2121.009113][   T12] br0: port 1(dummy0) entered disabled state