[ 1690.667516] br0: port 1(dummy0) entered blocking state
[ 1690.667591] br0: port 1(dummy0) entered disabled state
[ 1690.667653] dummy0: entered allmulticast mode
[ 1690.667733] dummy0: entered promiscuous mode
[ 1690.670163] br0: port 1(dummy0) entered blocking state
[ 1690.670197] br0: port 1(dummy0) entered forwarding state
[ 1690.856785] dummy0: left allmulticast mode
[ 1690.856815] dummy0: left promiscuous mode
[ 1690.856840] br0: port 1(dummy0) entered disabled state