[ 1767.817341] br0: port 1(dummy0) entered blocking state
[ 1767.817386] br0: port 1(dummy0) entered disabled state
[ 1767.817420] dummy0: entered allmulticast mode
[ 1767.817473] dummy0: entered promiscuous mode
[ 1767.821091] br0: port 1(dummy0) entered blocking state
[ 1767.821152] br0: port 1(dummy0) entered forwarding state
[ 1768.072778] dummy0: left allmulticast mode
[ 1768.072817] dummy0: left promiscuous mode
[ 1768.072875] br0: port 1(dummy0) entered disabled state