[ 1861.973240] br0: port 1(dummy0) entered blocking state
[ 1861.973328] br0: port 1(dummy0) entered disabled state
[ 1861.973402] dummy0: entered allmulticast mode
[ 1861.973513] dummy0: entered promiscuous mode
[ 1861.977577] br0: port 1(dummy0) entered blocking state
[ 1861.977613] br0: port 1(dummy0) entered forwarding state
[ 1862.258477] dummy0: left allmulticast mode
[ 1862.258611] dummy0: left promiscuous mode
[ 1862.258713] br0: port 1(dummy0) entered disabled state