[ 1665.158998] br0: port 1(dummy0) entered blocking state
[ 1665.159034] br0: port 1(dummy0) entered disabled state
[ 1665.159066] dummy0: entered allmulticast mode
[ 1665.159118] dummy0: entered promiscuous mode
[ 1665.161807] br0: port 1(dummy0) entered blocking state
[ 1665.161838] br0: port 1(dummy0) entered forwarding state
[ 1665.354387] dummy0: left allmulticast mode
[ 1665.354421] dummy0: left promiscuous mode
[ 1665.354454] br0: port 1(dummy0) entered disabled state