[ 1774.426272] br0: port 1(dummy0) entered blocking state
[ 1774.426318] br0: port 1(dummy0) entered disabled state
[ 1774.426353] dummy0: entered allmulticast mode
[ 1774.426411] dummy0: entered promiscuous mode
[ 1774.430203] br0: port 1(dummy0) entered blocking state
[ 1774.430267] br0: port 1(dummy0) entered forwarding state
[ 1774.695483] dummy0: left allmulticast mode
[ 1774.695528] dummy0: left promiscuous mode
[ 1774.695559] br0: port 1(dummy0) entered disabled state