[ 1719.371794] br0: port 1(dummy0) entered blocking state
[ 1719.371837] br0: port 1(dummy0) entered disabled state
[ 1719.371872] dummy0: entered allmulticast mode
[ 1719.371919] dummy0: entered promiscuous mode
[ 1719.374633] br0: port 1(dummy0) entered blocking state
[ 1719.374664] br0: port 1(dummy0) entered forwarding state
[ 1719.551529] dummy0: left allmulticast mode
[ 1719.551562] dummy0: left promiscuous mode
[ 1719.551590] br0: port 1(dummy0) entered disabled state