[ 1806.466658] br0: port 1(dummy0) entered blocking state
[ 1806.466696] br0: port 1(dummy0) entered disabled state
[ 1806.466734] dummy0: entered allmulticast mode
[ 1806.466787] dummy0: entered promiscuous mode
[ 1806.470176] br0: port 1(dummy0) entered blocking state
[ 1806.470204] br0: port 1(dummy0) entered forwarding state
[ 1806.685584] dummy0: left allmulticast mode
[ 1806.685615] dummy0: left promiscuous mode
[ 1806.685647] br0: port 1(dummy0) entered disabled state