[ 2203.512173][T11317] br0: port 1(dummy0) entered blocking state
[ 2203.512372][T11317] br0: port 1(dummy0) entered disabled state
[ 2203.512536][T11317] dummy0: entered allmulticast mode
[ 2203.513426][T11317] dummy0: entered promiscuous mode
[ 2203.536170][T11318] br0: port 1(dummy0) entered blocking state
[ 2203.536384][T11318] br0: port 1(dummy0) entered forwarding state
[ 2205.792250][   T12] dummy0: left allmulticast mode
[ 2205.793239][   T12] dummy0: left promiscuous mode
[ 2205.793525][   T12] br0: port 1(dummy0) entered disabled state