[ 1775.582972] br0: port 1(dummy0) entered blocking state
[ 1775.583048] br0: port 1(dummy0) entered disabled state
[ 1775.583118] dummy0: entered allmulticast mode
[ 1775.583204] dummy0: entered promiscuous mode
[ 1775.586819] br0: port 1(dummy0) entered blocking state
[ 1775.586851] br0: port 1(dummy0) entered forwarding state
[ 1775.856449] dummy0: left allmulticast mode
[ 1775.856513] dummy0: left promiscuous mode
[ 1775.856574] br0: port 1(dummy0) entered disabled state