[ 1717.791379] br0: port 1(dummy0) entered blocking state
[ 1717.791423] br0: port 1(dummy0) entered disabled state
[ 1717.791457] dummy0: entered allmulticast mode
[ 1717.791511] dummy0: entered promiscuous mode
[ 1717.794297] br0: port 1(dummy0) entered blocking state
[ 1717.794364] br0: port 1(dummy0) entered forwarding state
[ 1717.973083] dummy0: left allmulticast mode
[ 1717.973117] dummy0: left promiscuous mode
[ 1717.973174] br0: port 1(dummy0) entered disabled state