RFC 2335 (rfc2335) - Page 1 of 7

A Distributed NHRP Service Using SCSP

Network Working Group                                         J. Luciani
Request for Comments: 2335                                  Bay Networks
Category: Standards Track                                     April 1998


                 A Distributed NHRP Service Using SCSP

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1998).  All Rights Reserved.

Abstract

   This document describes a method for distributing an NHRP service
   within a LIS [1].  This method uses the Server Cache Synchronization
   Protocol (SCSP) [2] to synchronize the client information databases
   held by NHRP Servers (NHSs) within a LIS.

1. Introduction

   The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
   SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
   document, are to be interpreted as described in [4].

   NHRP Clients (NHCs) register their existence and reachability
   information with NHRP Servers (NHSs).  There may be multiple NHSs in
   a given Logical IP Subnet (LIS).  NHCs do not necessarily register
   with all NHSs in a LIS; however, all NHCs need to be able to query at
   least one NHS about any NHC within the LIS.  Thus, the contents of
   the NHS databases in a LIS need to be synchronized across the LIS.
   The Server Cache Synchronization Protocol (SCSP) solves the
   generalized server synchronization/cache-replication problem for
   distributed databases and thus SCSP may be applied to the NHS
   database synchronization problem within the LIS.









Luciani                     Standards Track