RFC 2333 (rfc2333) - Page 1 of 9
NHRP Protocol Applicability Statement
Alternative Format: Original Text Document
Network Working Group D. Cansever
Request for Comments: 2333 GTE Laboratories, Inc.
Category: Standards Track April 1998
NHRP Protocol Applicability Statement
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
As required by the Routing Protocol Criteria [RFC 1264], this memo
discusses the applicability of the Next Hop Resolution Protocol
(NHRP) in routing of IP datagrams over Non-Broadcast Multiple Access
(NBMA) networks, such as ATM, SMDS and X.25.
1. Protocol Documents
The NHRP protocol description is defined in [1]. The NHRP MIB
description is defined in [2].
2. Introduction
This document summarizes the key features of NHRP and discusses the
environments for which the protocol is well suited. For the purposes
of description, NHRP can be considered a generalization of Classical
IP and ARP over ATM which is defined in [3] and of the Transmission
of IP Datagrams over the SMDS Service, defined in [4]. This
generalization occurs in 2 distinct directions.
Firstly, NHRP avoids the need to go through extra hops of routers
when the Source and Destination belong to different Logical Internet
Subnets (LIS). Of course, [3] and [4] specify that when the source
and destination belong to different LISs, the source station must
forward data packets to a router that is a member of multiple LISs,
even though the source and destination stations may be on the same
logical NBMA network. If the source and destination stations belong
to the same logical NBMA network, NHRP provides the source station
Cansever Standards Track