[ 1766.416350] br0: port 1(dummy0) entered blocking state
[ 1766.416386] br0: port 1(dummy0) entered disabled state
[ 1766.416409] dummy0: entered allmulticast mode
[ 1766.416450] dummy0: entered promiscuous mode
[ 1766.419795] br0: port 1(dummy0) entered blocking state
[ 1766.419851] br0: port 1(dummy0) entered forwarding state
[ 1766.671874] dummy0: left allmulticast mode
[ 1766.671914] dummy0: left promiscuous mode
[ 1766.672002] br0: port 1(dummy0) entered disabled state