[ 1728.800769] br0: port 1(dummy0) entered blocking state
[ 1728.800817] br0: port 1(dummy0) entered disabled state
[ 1728.800854] dummy0: entered allmulticast mode
[ 1728.800902] dummy0: entered promiscuous mode
[ 1728.803740] br0: port 1(dummy0) entered blocking state
[ 1728.803769] br0: port 1(dummy0) entered forwarding state
[ 1729.007341] dummy0: left allmulticast mode
[ 1729.007390] dummy0: left promiscuous mode
[ 1729.007421] br0: port 1(dummy0) entered disabled state