[ 1717.630931] br0: port 1(dummy0) entered blocking state
[ 1717.630977] br0: port 1(dummy0) entered disabled state
[ 1717.631013] dummy0: entered allmulticast mode
[ 1717.631059] dummy0: entered promiscuous mode
[ 1717.633780] br0: port 1(dummy0) entered blocking state
[ 1717.633813] br0: port 1(dummy0) entered forwarding state
[ 1717.827140] dummy0: left allmulticast mode
[ 1717.827169] dummy0: left promiscuous mode
[ 1717.827199] br0: port 1(dummy0) entered disabled state