Content Engine / Load Balancing
Server load balancing (SLB) is the process of deciding to which server a load-balancing device should send a client request for service. For example, a client request can consist of an HTTP GET for a Web page or an FTP GET to download a file. The job of the load balancer is to select the server that can successfully fulfill the client request and do so in the shortest amount of time without overloading either the server or the server farm as a whole.
Depending on the load-balancing algorithm or predictor that you configure, the ACE appliance performs a series of checks and calculations to determine the server that can best service each client request. The ACE appliance bases server selection on several factors, including the server with the fewest connections with respect to load, source or destination address, cookies, URLs, or HTTP headers.
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