[ 2032.478414][T26536] br0: port 1(dummy0) entered blocking state
[ 2032.478636][T26536] br0: port 1(dummy0) entered disabled state
[ 2032.478844][T26536] dummy0: entered allmulticast mode
[ 2032.479891][T26536] dummy0: entered promiscuous mode
[ 2032.504712][T26537] br0: port 1(dummy0) entered blocking state
[ 2032.504993][T26537] br0: port 1(dummy0) entered forwarding state
[ 2034.453123][   T12] dummy0: left allmulticast mode
[ 2034.453908][   T12] dummy0: left promiscuous mode
[ 2034.454178][   T12] br0: port 1(dummy0) entered disabled state