[ 2238.511503][T12045] br0: port 1(dummy0) entered blocking state
[ 2238.511696][T12045] br0: port 1(dummy0) entered disabled state
[ 2238.511864][T12045] dummy0: entered allmulticast mode
[ 2238.512871][T12045] dummy0: entered promiscuous mode
[ 2238.551637][T12046] br0: port 1(dummy0) entered blocking state
[ 2238.552271][T12046] br0: port 1(dummy0) entered forwarding state
[ 2240.900734][   T12] dummy0: left allmulticast mode
[ 2240.901966][   T12] dummy0: left promiscuous mode
[ 2240.902250][   T12] br0: port 1(dummy0) entered disabled state