[ 1760.211934] br0: port 1(dummy0) entered blocking state
[ 1760.211983] br0: port 1(dummy0) entered disabled state
[ 1760.212016] dummy0: entered allmulticast mode
[ 1760.212068] dummy0: entered promiscuous mode
[ 1760.214830] br0: port 1(dummy0) entered blocking state
[ 1760.214895] br0: port 1(dummy0) entered forwarding state
[ 1760.404170] dummy0: left allmulticast mode
[ 1760.404199] dummy0: left promiscuous mode
[ 1760.404225] br0: port 1(dummy0) entered disabled state