[ 1698.840814] br0: port 1(dummy0) entered blocking state
[ 1698.840890] br0: port 1(dummy0) entered disabled state
[ 1698.840956] dummy0: entered allmulticast mode
[ 1698.841039] dummy0: entered promiscuous mode
[ 1698.844322] br0: port 1(dummy0) entered blocking state
[ 1698.844364] br0: port 1(dummy0) entered forwarding state
[ 1699.051686] dummy0: left allmulticast mode
[ 1699.051754] dummy0: left promiscuous mode
[ 1699.051852] br0: port 1(dummy0) entered disabled state