[ 1779.729128] br0: port 1(dummy0) entered blocking state
[ 1779.729164] br0: port 1(dummy0) entered disabled state
[ 1779.729195] dummy0: entered allmulticast mode
[ 1779.729256] dummy0: entered promiscuous mode
[ 1779.732847] br0: port 1(dummy0) entered blocking state
[ 1779.732880] br0: port 1(dummy0) entered forwarding state
[ 1779.986225] dummy0: left allmulticast mode
[ 1779.986268] dummy0: left promiscuous mode
[ 1779.986296] br0: port 1(dummy0) entered disabled state