[ 1693.909835] br0: port 1(dummy0) entered blocking state
[ 1693.909873] br0: port 1(dummy0) entered disabled state
[ 1693.909910] dummy0: entered allmulticast mode
[ 1693.909965] dummy0: entered promiscuous mode
[ 1693.913359] br0: port 1(dummy0) entered blocking state
[ 1693.913424] br0: port 1(dummy0) entered forwarding state
[ 1694.144744] dummy0: left allmulticast mode
[ 1694.144812] dummy0: left promiscuous mode
[ 1694.144908] br0: port 1(dummy0) entered disabled state