[ 1766.419785] br0: port 1(dummy0) entered blocking state
[ 1766.419835] br0: port 1(dummy0) entered disabled state
[ 1766.419869] dummy0: entered allmulticast mode
[ 1766.419930] dummy0: entered promiscuous mode
[ 1766.422441] br0: port 1(dummy0) entered blocking state
[ 1766.422502] br0: port 1(dummy0) entered forwarding state
[ 1766.600300] dummy0: left allmulticast mode
[ 1766.600332] dummy0: left promiscuous mode
[ 1766.600365] br0: port 1(dummy0) entered disabled state