[ 2271.754601][T15448] br0: port 1(dummy0) entered blocking state
[ 2271.754791][T15448] br0: port 1(dummy0) entered disabled state
[ 2271.755419][T15448] dummy0: entered allmulticast mode
[ 2271.756793][T15448] dummy0: entered promiscuous mode
[ 2271.782583][T15449] br0: port 1(dummy0) entered blocking state
[ 2271.782885][T15449] br0: port 1(dummy0) entered forwarding state
[ 2273.775006][   T68] dummy0: left allmulticast mode
[ 2273.776043][   T68] dummy0: left promiscuous mode
[ 2273.776303][   T68] br0: port 1(dummy0) entered disabled state