The response metric uses real server response time to assign sessions to servers. The response time between the servers and the WSM is used as the weighting factor. The WSM monitors and records the amount of time it takes for each real server to reply to a health check to adjust the real server weights. The weights are adjusted so they are inversely proportional to a moving average of response time. In such a scenario, a server with half the response time as another server will receive a weight twice as large.

Note: The effects of the response weighting apply directly to the real servers and are not necessarily confined to the real server group. When response time-metered real servers are also used in other real server groups that use the least connections or roundrobin metrics, the response weights are applied on top of these calculations for the affected real servers. Since the response weight changes dynamically, this can produce fluctuations in traffic distribution for the real server groups that use the least connections or roundrobin metrics.

Response time