[ 1952.875478][T29571] br0: port 1(dummy0) entered blocking state
[ 1952.876155][T29571] br0: port 1(dummy0) entered disabled state
[ 1952.876377][T29571] dummy0: entered allmulticast mode
[ 1952.877360][T29571] dummy0: entered promiscuous mode
[ 1952.902640][T29572] br0: port 1(dummy0) entered blocking state
[ 1952.902865][T29572] br0: port 1(dummy0) entered forwarding state
[ 1954.763376][   T69] dummy0: left allmulticast mode
[ 1954.763593][   T69] dummy0: left promiscuous mode
[ 1954.763865][   T69] br0: port 1(dummy0) entered disabled state