[ 1922.610957][  T699] br0: port 1(dummy0) entered blocking state
[ 1922.611149][  T699] br0: port 1(dummy0) entered disabled state
[ 1922.611319][  T699] dummy0: entered allmulticast mode
[ 1922.612160][  T699] dummy0: entered promiscuous mode
[ 1922.648351][  T700] br0: port 1(dummy0) entered blocking state
[ 1922.648530][  T700] br0: port 1(dummy0) entered forwarding state
[ 1924.651183][   T70] dummy0: left allmulticast mode
[ 1924.651374][   T70] dummy0: left promiscuous mode
[ 1924.651608][   T70] br0: port 1(dummy0) entered disabled state