[ 1575.948448] br0: port 1(dummy0) entered blocking state
[ 1575.948488] br0: port 1(dummy0) entered disabled state
[ 1575.948531] dummy0: entered allmulticast mode
[ 1575.948590] dummy0: entered promiscuous mode
[ 1575.951740] br0: port 1(dummy0) entered blocking state
[ 1575.951805] br0: port 1(dummy0) entered forwarding state
[ 1576.161301] dummy0: left allmulticast mode
[ 1576.161394] dummy0: left promiscuous mode
[ 1576.161453] br0: port 1(dummy0) entered disabled state