This document presents a lightweight mechanism for supporting customization in SLP where a UA specifies its customization request in the SrvRqst via an SLP extension, and the DA customizes the SrvRply according to the UA request. Two basic customization operations, sorting and bounding the result set, are provided, and some complex customization requests are supported by composing these two basic operations. Furthermore, customized comparators are enabled to decide the result order. Customizing SLP SrvRqst and SrvRply messages enhances the basic SLP discovery scenario by also considering user information and preference, and thus it can support value-added services and improve the SLP query efficiency.
By: Weibin Zhao, Henning Schulzrinne, Chatschik Bisdikian, William Jerome
Published in: RC22098 in 2001
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