[ 1885.346719] br0: port 1(dummy0) entered blocking state
[ 1885.346791] br0: port 1(dummy0) entered disabled state
[ 1885.346859] dummy0: entered allmulticast mode
[ 1885.346943] dummy0: entered promiscuous mode
[ 1885.350402] br0: port 1(dummy0) entered blocking state
[ 1885.350432] br0: port 1(dummy0) entered forwarding state
[ 1885.609724] dummy0: left allmulticast mode
[ 1885.609762] dummy0: left promiscuous mode
[ 1885.609842] br0: port 1(dummy0) entered disabled state