If there are very many simultaneous requests, every server will sooner or later reach its limit and will thus no longer be able to answer the queries of the website visitors in a timely fashion. The user will then have to wait a long time for the page to load completely. The task of a loadbalancer is to control the distribution of requests to several servers. To do so, the loadbalancer permanently checks and judges response times and loads of the servers and distributes the requests to the servers. The actual allocation of load is done either sequentially, according to a predefined distribution scheme, or, in the case of a loadbalancing cluster, dynamically according to the current load of the servers. In the latter case, requests arrive at the loadbalancer with a dedicated IP address for each website; the loadbalancer then forwards the requests to the servers according to the configured distribution method. Knipp uses only loadbalancers by Brocade Communications Systems (formerly Foundry Networks).