[ 2080.233922][T30474] br0: port 1(dummy0) entered blocking state
[ 2080.234159][T30474] br0: port 1(dummy0) entered disabled state
[ 2080.234371][T30474] dummy0: entered allmulticast mode
[ 2080.235293][T30474] dummy0: entered promiscuous mode
[ 2080.265319][T30475] br0: port 1(dummy0) entered blocking state
[ 2080.265497][T30475] br0: port 1(dummy0) entered forwarding state
[ 2082.299718][   T72] dummy0: left allmulticast mode
[ 2082.300796][   T72] dummy0: left promiscuous mode
[ 2082.301083][   T72] br0: port 1(dummy0) entered disabled state