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service-oriented request classification - A request classification that focuses on the destination (specific module or content) of a request.

session - In WebQoS, a session is composed of one or more requests to a web site. These requests may arrive over one, or possibly several connections. Once a session has been granted, a user’s remaining requests are guaranteed to be forwarded to the web server, unless the session times out. Under periods of heavy system load, it is possible that new sessions will not be granted. (This is driven by your specific policies.) However, existing sessions continue uninterrupted.

shared server/cluster - A system or cluster of systems that host services and content belonging to several businesses or business units.

T

threshold policy - An SLO defined by an IT/ISP administrator for the purposes of monitoring and maintaining the health and well being of the complex as well as keeping critical services up and running. This SLO is private to the service provider and are distinct from business SLOs which are explicitly negotiated with a hosting customer.

ToS byte - Type of Service byte in

the IP header. In RFC1812, it is divided into three sections: the precedence field (high-order 3 bits), a field that is customarily called type of service or ToS (next 4 bits), and a reserved bit (the low order bit).

transparent classification - The classification performed by examining the attributes of a request such as whom it came from, where it is destined, or the type of service for which the request is constructed. The application is unaware that the classification has been performed by WebQoS.

U

URL document path - The directory path and filename of the URL used to access the site. For example, given the URL http://some.system.domain.com/my _path/index.html, the URL document path is /my_path/index.html

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