This is a read-only counter-like value showing how many client connections are currently open to a specific real (backend) server behind an HH3C load balancer. An administrator watches this number to see whether traffic is being distributed evenly across real servers or whether one server is overloaded with connections while others sit idle. For example, if this value reads 850 for one server while its peers show under 100, that signals the load-balancing algorithm or weight configuration needs adjustment.