[ 2203.140191][T30261] br0: port 1(dummy0) entered blocking state
[ 2203.140495][T30261] br0: port 1(dummy0) entered disabled state
[ 2203.140772][T30261] dummy0: entered allmulticast mode
[ 2203.141749][T30261] dummy0: entered promiscuous mode
[ 2203.179454][T30262] br0: port 1(dummy0) entered blocking state
[ 2203.179906][T30262] br0: port 1(dummy0) entered forwarding state
[ 2205.687833][   T61] dummy0: left allmulticast mode
[ 2205.689004][   T61] dummy0: left promiscuous mode
[ 2205.689349][   T61] br0: port 1(dummy0) entered disabled state