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MAPOS - Multiple Access Protocol over SONET/SDH Version 1 (RFC2171)

IP.com Disclosure Number: IPCOM000002729D
Original Publication Date: 1997-Jun-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 7 page(s) / 16K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Murakami: AUTHOR [+2]

Abstract

This document describes the protocol MAPOS, Multiple Access Protocol over SONET/SDH, for transmitting network-protocol datagrams over SONET/SDH. It focuses on the core protocol -- other documents listed in the bibliography may be referenced in conjunction with this document to provide support and services for protocols at higher layers.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 17% of the total text.

Network Working Group K. Murakami

Request for Comments: 2171 M. Maruyama

Category: Informational NTT Laboratories

June 1997

MAPOS - Multiple Access Protocol over SONET/SDH Version 1

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.

Authors' Note

This memo documents a multiple access protocol for transmission of

network-protocol datagrams, encapsulated in High-Level Data Link

Control (HDLC) frames, over SONET/SDH. This document is NOT the

product of an IETF working group nor is it a standards track

document. It has not necessarily benefited from the widespread and

in depth community review that standards track documents receive.

Abstract

This document describes the protocol MAPOS, Multiple Access Protocol

over SONET/SDH, for transmitting network-protocol datagrams over

SONET/SDH. It focuses on the core protocol -- other documents listed

in the bibliography may be referenced in conjunction with this

document to provide support and services for protocols at higher

layers.

1. Introduction

1.1 SONET/SDH

The Synchronous Optical Network/Synchronous Digital Hierarchy

(SONET/SDH) [1][2][3][4] family of ITU-T standard protocols are

designed to provide common, simple, and flexible interface for

broadband optical fiber transmission systems. It enables direct

octet-synchronous multiplexing of lower rate tributaries.

SONET/SDH-compliant transmission systems are widely deployed by

telephone carriers world wide.

This document defines the MAPOS protocol -- a method for transmitting

HDLC frames over SONET/SDH. The protocol provides multiple access

capability to SONET/SDH, an inherently point-to-point link. This

enables construction of seamless networking environment using

SONET/SDH as transmission media for both LAN and WAN.

1.2 Possible Configurations

The MAPOS protocol provides multiple access, broadcast / multicast-

capable switched LAN environment using SONET/SDH lines as

transmission media. Possible configurations of MAPOS system are

shown in the following diagrams. In (a), two end nodes are connected

to each other. Figure (b) shows a star-topology "SONET-LAN" where

multiple end nodes are connected to an HDLC frame switch. The frame

switch forwards packets between nodes and provides multiple access

capability. In (c), multiple frame switches are l...