[ 1633.926506] br0: port 1(dummy0) entered blocking state
[ 1633.926585] br0: port 1(dummy0) entered disabled state
[ 1633.926657] dummy0: entered allmulticast mode
[ 1633.926743] dummy0: entered promiscuous mode
[ 1633.929663] br0: port 1(dummy0) entered blocking state
[ 1633.929699] br0: port 1(dummy0) entered forwarding state
[ 1634.134667] dummy0: left allmulticast mode
[ 1634.134751] dummy0: left promiscuous mode
[ 1634.134817] br0: port 1(dummy0) entered disabled state