[ 1673.932924] br0: port 1(dummy0) entered blocking state
[ 1673.933003] br0: port 1(dummy0) entered disabled state
[ 1673.933077] dummy0: entered allmulticast mode
[ 1673.933167] dummy0: entered promiscuous mode
[ 1673.936682] br0: port 1(dummy0) entered blocking state
[ 1673.936745] br0: port 1(dummy0) entered forwarding state
[ 1674.151694] dummy0: left allmulticast mode
[ 1674.151729] dummy0: left promiscuous mode
[ 1674.151760] br0: port 1(dummy0) entered disabled state