[ 2139.297504][T14067] br0: port 1(dummy0) entered blocking state
[ 2139.297689][T14067] br0: port 1(dummy0) entered disabled state
[ 2139.297850][T14067] dummy0: entered allmulticast mode
[ 2139.298739][T14067] dummy0: entered promiscuous mode
[ 2139.328530][T14068] br0: port 1(dummy0) entered blocking state
[ 2139.328705][T14068] br0: port 1(dummy0) entered forwarding state
[ 2141.361902][   T68] dummy0: left allmulticast mode
[ 2141.362772][   T68] dummy0: left promiscuous mode
[ 2141.363070][   T68] br0: port 1(dummy0) entered disabled state