[ 2256.865767][T27601] br0: port 1(dummy0) entered blocking state
[ 2256.866007][T27601] br0: port 1(dummy0) entered disabled state
[ 2256.866636][T27601] dummy0: entered allmulticast mode
[ 2256.867644][T27601] dummy0: entered promiscuous mode
[ 2256.902468][T27602] br0: port 1(dummy0) entered blocking state
[ 2256.902709][T27602] br0: port 1(dummy0) entered forwarding state
[ 2259.074877][   T12] dummy0: left allmulticast mode
[ 2259.075899][   T12] dummy0: left promiscuous mode
[ 2259.076151][   T12] br0: port 1(dummy0) entered disabled state