[ 1848.793618][T21528] br0: port 1(dummy0) entered blocking state
[ 1848.793805][T21528] br0: port 1(dummy0) entered disabled state
[ 1848.793966][T21528] dummy0: entered allmulticast mode
[ 1848.795344][T21528] dummy0: entered promiscuous mode
[ 1848.832683][T21529] br0: port 1(dummy0) entered blocking state
[ 1848.832921][T21529] br0: port 1(dummy0) entered forwarding state
[ 1850.813423][   T69] dummy0: left allmulticast mode
[ 1850.814524][   T69] dummy0: left promiscuous mode
[ 1850.814807][   T69] br0: port 1(dummy0) entered disabled state