[ 1781.853804] br0: port 1(dummy0) entered blocking state
[ 1781.853876] br0: port 1(dummy0) entered disabled state
[ 1781.853947] dummy0: entered allmulticast mode
[ 1781.854030] dummy0: entered promiscuous mode
[ 1781.857326] br0: port 1(dummy0) entered blocking state
[ 1781.857356] br0: port 1(dummy0) entered forwarding state
[ 1782.080307] dummy0: left allmulticast mode
[ 1782.080344] dummy0: left promiscuous mode
[ 1782.080375] br0: port 1(dummy0) entered disabled state