How Does the NLB Load Balancing Algorithm Work?
NLB employs a fully distributed filtering algorithm to map incoming clients to the cluster hosts. This algorithm enables cluster hosts to independently and quickly make a load balancing decision for each incoming packet. It is optimized to deliver statistically even load balance for a large client population making numerous, relatively small requests, such as those typically made to Web servers. When the client population is small and/or the client connections produce widely varying loads on the server, the load-balancing algorithm is less effective. However, the simplicity and speed of NLBs algorithm allows it to deliver very high performance, including both high throughput and low response time, in a wide range of useful client/server applications. If No Affinity is set, NLB load balances incoming client requests so as to direct a selected percentage of new requests to each cluster host; The algorithm does not dynamically respond to changes in the load on each cluster host (such as t
