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19 Managing Knowledge References and Referrals 19-1 19 Managing Knowledge References and Referrals This chapter explains This Chapter contains these topics: ■ Introduction to Managing Knowledge References and Referrals ■ Configuring Smart Referrals ■ Configuring Default Referrals Introduction to Managing Knowledge References and Referrals A knowledge reference, also called a referral, is represented in the directory as a particular type of entry. When you create a knowledge reference entry, you associate it with the referral object class the and extensibleObject object class. Typically, you create knowledge reference entries at the place in the DIT where you want to establish the partition. A knowledge reference provides users with a referral containing an LDAP URL. You enter these URLs as values for the ref attribute. There can be multiple ref attributes specified for any knowledge reference entry. Similarly, there can be multiple knowledge reference entries in the DIT. Referral caching is the process of storing referral information so that it can be easily accessed again and again. Suppose that a client queries Server A, which returns a referral to Server B. The client chases this referral and contacts Server B which performs the operation and returns the results to the client. Without referral caching, the next time the client makes the same query to Server A, the entire procedure is repeated, an unnecessary consumption of time and system resources. However, if the referral information can be cached, then, in each subsequent query, the referral information can be obtained from cache and Server B can be contacted directly. This speeds up the operation. See Also: Knowledge References and Referrals on page 3-17 for an overview of directory entries, directory information trees, distinguished names, and relative distinguished names See Also: Chapter 3, Understanding Oracle Internet Directory Concepts and Architecture for an overview of directory partitioning and knowledge references and a description of a smart knowledge reference and a default knowledge reference