[ 1834.761098] br0: port 1(dummy0) entered blocking state
[ 1834.761149] br0: port 1(dummy0) entered disabled state
[ 1834.761181] dummy0: entered allmulticast mode
[ 1834.761227] dummy0: entered promiscuous mode
[ 1834.764451] br0: port 1(dummy0) entered blocking state
[ 1834.764515] br0: port 1(dummy0) entered forwarding state
[ 1834.989006] dummy0: left allmulticast mode
[ 1834.989040] dummy0: left promiscuous mode
[ 1834.989068] br0: port 1(dummy0) entered disabled state