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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: 2019-Feb-15
Document File: 9 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Murakami: AUTHOR [+1]

Related Documents

10.17487/RFC2171: DOI

Abstract

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

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 24% 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.

Murakami & Maruyama Informational [Page 1]

RFC 2171 MAPOS June 1997

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 linked together, creating a switching cluster.

+------+ +------+ | Node +--------------------------------+ Node | +------+ +------+

(a) Point-to-Point configuration

Murakami & Maruyama Informational [Page 2]

RFC 2171 MAPOS June 1997

+------+ +---------------+ | Node +--------------------------------+ | +------+ | | | | +------+ | | | Node +--------------------------------+ | +------+ | | | Frame Switch | +------+ | | | Node +--------------------------------+ | +------+ | | | | +------+ | | | Node +----------------------...

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