[ 1866.791437] br0: port 1(dummy0) entered blocking state
[ 1866.791478] br0: port 1(dummy0) entered disabled state
[ 1866.791517] dummy0: entered allmulticast mode
[ 1866.791564] dummy0: entered promiscuous mode
[ 1866.794973] br0: port 1(dummy0) entered blocking state
[ 1866.795003] br0: port 1(dummy0) entered forwarding state
[ 1867.054568] dummy0: left allmulticast mode
[ 1867.054597] dummy0: left promiscuous mode
[ 1867.054628] br0: port 1(dummy0) entered disabled state