[ 1685.326118] br0: port 1(dummy0) entered blocking state
[ 1685.326190] br0: port 1(dummy0) entered disabled state
[ 1685.326261] dummy0: entered allmulticast mode
[ 1685.326355] dummy0: entered promiscuous mode
[ 1685.329123] br0: port 1(dummy0) entered blocking state
[ 1685.329154] br0: port 1(dummy0) entered forwarding state
[ 1685.514397] dummy0: left allmulticast mode
[ 1685.514435] dummy0: left promiscuous mode
[ 1685.514466] br0: port 1(dummy0) entered disabled state