[ 1941.729180][  T478] br0: port 1(dummy0) entered blocking state
[ 1941.729385][  T478] br0: port 1(dummy0) entered disabled state
[ 1941.729567][  T478] dummy0: entered allmulticast mode
[ 1941.730481][  T478] dummy0: entered promiscuous mode
[ 1941.758358][  T479] br0: port 1(dummy0) entered blocking state
[ 1941.758680][  T479] br0: port 1(dummy0) entered forwarding state
[ 1943.798133][   T12] dummy0: left allmulticast mode
[ 1943.798429][   T12] dummy0: left promiscuous mode
[ 1943.798655][   T12] br0: port 1(dummy0) entered disabled state