RFC 2332 (rfc2332) - Page 1 of 52
NBMA Next Hop Resolution Protocol (NHRP)
Alternative Format: Original Text Document
Network Working Group J. Luciani
Request for Comments: 2332 Bay Networks
Category: Standards Track D. Katz
cisco Systems
D. Piscitello
Core Competence, Inc.
B. Cole
Juniper Networks
N. Doraswamy
Bay Networks
April 1998
NBMA Next Hop Resolution Protocol (NHRP)
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 the NBMA Next Hop Resolution Protocol (NHRP).
NHRP can be used by a source station (host or router) connected to a
Non-Broadcast, Multi-Access (NBMA) subnetwork to determine the
internetworking layer address and NBMA subnetwork addresses of the
"NBMA next hop" towards a destination station. If the destination is
connected to the NBMA subnetwork, then the NBMA next hop is the
destination station itself. Otherwise, the NBMA next hop is the
egress router from the NBMA subnetwork that is "nearest" to the
destination station. NHRP is intended for use in a multiprotocol
internetworking layer environment over NBMA subnetworks.
Note that while this protocol was developed for use with NBMA
subnetworks, it is possible, if not likely, that it will be applied
to BMA subnetworks as well. However, this usage of NHRP is for
further study.
This document is intended to be a functional superset of the NBMA
Address Resolution Protocol (NARP) documented in [1].
Luciani, et. al. Standards Track