[ 1735.599367] br0: port 1(dummy0) entered blocking state
[ 1735.599435] br0: port 1(dummy0) entered disabled state
[ 1735.599498] dummy0: entered allmulticast mode
[ 1735.599581] dummy0: entered promiscuous mode
[ 1735.602036] br0: port 1(dummy0) entered blocking state
[ 1735.602069] br0: port 1(dummy0) entered forwarding state
[ 1735.779018] dummy0: left allmulticast mode
[ 1735.779048] dummy0: left promiscuous mode
[ 1735.779078] br0: port 1(dummy0) entered disabled state