HP WebQoS Software manual 178

Models: WebQoS Software

1 182
Download 182 pages 33.13 Kb
Page 178
Image 178

performed by an admission controller, typically in response to heavy load on the server. The request is given a time slot at which it is expected that the server will have enough capacity to handle the entire session.

session redirection - Redirection of a session to a specified URL or a machine in a cluster domain that has WebQoS configured and running.

session rejection - The decision not to satisfy a user request. Session rejection is performed by an admission controller, typically in response to heavy load on the server. The user may come back at a later time when the server is less busy. The rejection may contain special incentives for the user to return later, such as a personalized promotion or an electronic coupon.

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. These SLOs are 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 who 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

178

Page 178
Image 178
HP WebQoS Software manual 178