[ 1792.404647] br0: port 1(dummy0) entered blocking state
[ 1792.404684] br0: port 1(dummy0) entered disabled state
[ 1792.404705] dummy0: entered allmulticast mode
[ 1792.404741] dummy0: entered promiscuous mode
[ 1792.408364] br0: port 1(dummy0) entered blocking state
[ 1792.408391] br0: port 1(dummy0) entered forwarding state
[ 1792.662476] dummy0: left allmulticast mode
[ 1792.662502] dummy0: left promiscuous mode
[ 1792.662519] br0: port 1(dummy0) entered disabled state