[ 2238.153680][T14651] br0: port 1(dummy0) entered blocking state
[ 2238.153878][T14651] br0: port 1(dummy0) entered disabled state
[ 2238.154044][T14651] dummy0: entered allmulticast mode
[ 2238.154924][T14651] dummy0: entered promiscuous mode
[ 2238.182320][T14652] br0: port 1(dummy0) entered blocking state
[ 2238.182792][T14652] br0: port 1(dummy0) entered forwarding state
[ 2240.180778][   T70] dummy0: left allmulticast mode
[ 2240.181528][   T70] dummy0: left promiscuous mode
[ 2240.182063][   T70] br0: port 1(dummy0) entered disabled state