RFC 2968 (rfc2968) - Page 1 of 9

Mesh of Multiple DAG servers - Results from TISDAG

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Network Working Group                                          L. Daigle
Request for Comments: 2968                                      T. Eklof
Category: Informational                                     October 2000


           Mesh of Multiple DAG servers - Results from TISDAG

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   The Common Indexing Protocol ([CIP1]) is designed to facilitate the
   creation not only of query referral indexes, but also of meshes of
   (loosely) affiliated referral indexes.  The purpose of such a mesh of
   servers is to implement some kind of distributed sharing of indexing
   and/or searching tasks across different servers.  So far, the TISDAG
   (Technical Infrastructure for Swedish Directory Access Gateways)
   project ([TISDAG], [DAGEXP]) has focused on creating a single
   referral index; the obvious next step is to integrate that into a
   larger set of interoperating services.

1. Introduction

1.1 Overview of mesh possibilities

   Two different possibilities are possible for extending the TISDAG
   service to a mesh model (or some combination of both).  First, it
   should be possible to create a mesh of DAG-based services.  Or, it
   might be interesting to use the mesh architecture to incorporate
   access to other types of services (e.g., the Norwegian Directory of
   Directories).  In either case, the basic principle for establishing a
   mesh is that interoperating services should exchange index objects,
   according to the architecture of the mesh (e.g., hierarchical, or
   graph-like, preferably without loops!).

   As is outlined in the CIP documentation ([CIP1]), many possibilities
   exist for mechanisms for creating indexes over multiple referral
   servers -- for example, WDSP index objects could be passed along





Daigle & Eklof               Informational
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