[ 2055.289520][T17735] br0: port 1(dummy0) entered blocking state
[ 2055.289705][T17735] br0: port 1(dummy0) entered disabled state
[ 2055.289869][T17735] dummy0: entered allmulticast mode
[ 2055.290738][T17735] dummy0: entered promiscuous mode
[ 2055.319215][T17736] br0: port 1(dummy0) entered blocking state
[ 2055.319387][T17736] br0: port 1(dummy0) entered forwarding state
[ 2057.320721][   T69] dummy0: left allmulticast mode
[ 2057.322078][   T69] dummy0: left promiscuous mode
[ 2057.322325][   T69] br0: port 1(dummy0) entered disabled state