[ 1784.399893] br0: port 1(dummy0) entered blocking state
[ 1784.399932] br0: port 1(dummy0) entered disabled state
[ 1784.399956] dummy0: entered allmulticast mode
[ 1784.399994] dummy0: entered promiscuous mode
[ 1784.402919] br0: port 1(dummy0) entered blocking state
[ 1784.402972] br0: port 1(dummy0) entered forwarding state
[ 1784.607049] dummy0: left allmulticast mode
[ 1784.607070] dummy0: left promiscuous mode
[ 1784.607094] br0: port 1(dummy0) entered disabled state