[ 1780.759026] br0: port 1(dummy0) entered blocking state
[ 1780.759077] br0: port 1(dummy0) entered disabled state
[ 1780.759113] dummy0: entered allmulticast mode
[ 1780.759169] dummy0: entered promiscuous mode
[ 1780.762716] br0: port 1(dummy0) entered blocking state
[ 1780.762749] br0: port 1(dummy0) entered forwarding state
[ 1781.031709] dummy0: left allmulticast mode
[ 1781.031753] dummy0: left promiscuous mode
[ 1781.031827] br0: port 1(dummy0) entered disabled state