[ 2089.334670][T15855] br0: port 1(dummy0) entered blocking state
[ 2089.334851][T15855] br0: port 1(dummy0) entered disabled state
[ 2089.335002][T15855] dummy0: entered allmulticast mode
[ 2089.336010][T15855] dummy0: entered promiscuous mode
[ 2089.359238][T15856] br0: port 1(dummy0) entered blocking state
[ 2089.359409][T15856] br0: port 1(dummy0) entered forwarding state
[ 2091.279576][   T12] dummy0: left allmulticast mode
[ 2091.279790][   T12] dummy0: left promiscuous mode
[ 2091.280027][   T12] br0: port 1(dummy0) entered disabled state