[ 1777.318225] br0: port 1(dummy0) entered blocking state
[ 1777.318297] br0: port 1(dummy0) entered disabled state
[ 1777.318369] dummy0: entered allmulticast mode
[ 1777.318454] dummy0: entered promiscuous mode
[ 1777.321285] br0: port 1(dummy0) entered blocking state
[ 1777.321319] br0: port 1(dummy0) entered forwarding state
[ 1777.505425] dummy0: left allmulticast mode
[ 1777.505453] dummy0: left promiscuous mode
[ 1777.505483] br0: port 1(dummy0) entered disabled state