RFC 2173 (rfc2173) - Page 1 of 6

A MAPOS version 1 Extension - Node Switch Protocol

Alternative Format: Original Text Document
Next >
Network Working Group                                        K. Murakami
Request for Comments: 2173                                   M. Maruyama
Category: Informational                                 NTT Laboratories
                                                               June 1997


           A MAPOS version 1 Extension - Node Switch Protocol

Status of this Memo

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

Abstract

   This document describes a MAPOS extension, Node Switch Protocol, for
   automatic node address assignment. MAPOS is a multiple access
   protocol for transmission of network-protocol datagrams, encapsulated
   in High-Level Data Link Control (HDLC) frames, over SONET/SDH. NSP
   automates the HDLC address configuration of each node. Using NSP, a
   node retrieves its HDLC address from the switch to which it is
   connected.

1. Introduction

   MAPOS[1], Multiple Access Protocol over SONET(Synchronous Optical
   Network)/SDH(Synchronous Digital Hierarchy)[2][3][4][5], is a
   protocol for transmission of HDLC frames over SONET/SDH. A SONET
   switch provides multiple access capability to each node. In MAPOS,
   each node has a unique HDLC address within a switch. The address is
   equivalent to the port number of the switch to which the node is
   connected.  This document describes an extension to MAPOS, Node
   Switch Protocol, which enable automatic HDLC address assignment.
   First, it explains the addressing of MAPOS. Then, it describes the
   NSP protocol for automatic HDLC node address assignment.

2. Node Address Format

   This section describes MAPOS Version 1 address format in single and
   multiple switch environment.










Murakami & Maruyama          Informational
Next >