[ 2141.146074][T16975] br0: port 1(dummy0) entered blocking state
[ 2141.146375][T16975] br0: port 1(dummy0) entered disabled state
[ 2141.146665][T16975] dummy0: entered allmulticast mode
[ 2141.147657][T16975] dummy0: entered promiscuous mode
[ 2141.181189][T16976] br0: port 1(dummy0) entered blocking state
[ 2141.181828][T16976] br0: port 1(dummy0) entered forwarding state
[ 2143.666320][   T12] dummy0: left allmulticast mode
[ 2143.667197][   T12] dummy0: left promiscuous mode
[ 2143.667672][   T12] br0: port 1(dummy0) entered disabled state