[ 1829.064196] br0: port 1(dummy0) entered blocking state
[ 1829.064253] br0: port 1(dummy0) entered disabled state
[ 1829.064286] dummy0: entered allmulticast mode
[ 1829.064338] dummy0: entered promiscuous mode
[ 1829.067675] br0: port 1(dummy0) entered blocking state
[ 1829.067736] br0: port 1(dummy0) entered forwarding state
[ 1829.275349] dummy0: left allmulticast mode
[ 1829.275383] dummy0: left promiscuous mode
[ 1829.275412] br0: port 1(dummy0) entered disabled state