Importance

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Abstract

This disclosure provides for admission control with multiple classes of service and priority processing. An admission control system preferably admits incoming messages which are part of a session-in progress. As to messages representing new sessions, the admission control system admits such messages on the basis of priority or class assigned to them, or otherwise discriminates between messages stored in a message queue based on priority. In a preferred embodiment, if server resources become strained, the admission control system can defer messages in order of lowest priority or if allocated class resources have been exceeded. In one embodiment, messages are assigned different status for two web site providers paying for different levels of service available, such that as server resources become stretched, one web site will receive better quality of service than the second web site. For deferred messages, the server-based system determines when priority access can later be provided to the particular client and transmits to the client an indication of that time. One example uses a downloaded web page to automatically cause a client browser to later automatically access the host on a priority basis.

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First Claim