[ 2339.181243][  T527] br0: port 1(dummy0) entered blocking state
[ 2339.181562][  T527] br0: port 1(dummy0) entered disabled state
[ 2339.181843][  T527] dummy0: entered allmulticast mode
[ 2339.183180][  T527] dummy0: entered promiscuous mode
[ 2339.208292][  T528] br0: port 1(dummy0) entered blocking state
[ 2339.208771][  T528] br0: port 1(dummy0) entered forwarding state
[ 2341.660673][   T68] dummy0: left allmulticast mode
[ 2341.661627][   T68] dummy0: left promiscuous mode
[ 2341.662188][   T68] br0: port 1(dummy0) entered disabled state