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PPP Over Asynchronous Transfer Mode Adaptation Layer 2 (AAL2) (RFC3336)

IP.com Disclosure Number: IPCOM000010532D
Original Publication Date: 2002-Dec-01
Included in the Prior Art Database: 2002-Dec-13
Document File: 17 page(s) / 34K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Thompson: AUTHOR [+3]

Abstract

The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Thompson

Request for Comments: 3336� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � T. Koren

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Cisco Systems

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Buffam

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Seaway Networks

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � December 2002

� � � � PPP Over Asynchronous Transfer Mode Adaptation Layer 2 (AAL2)

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 (2002).� All Rights Reserved.

Abstract

� � The Point-to-Point Protocol (PPP) provides a standard method for

� � transporting multi-protocol datagrams over point-to-point links.

� � This document describes the use of ATM Adaptation Layer 2 (AAL2) for

� � framing PPP encapsulated packets.

Applicability

� � This specification is intended for those implementations which desire

� � to use the facilities which are defined for PPP, such as the Link

� � Control Protocol, Network-layer Control Protocols, authentication,

� � and compression.� These capabilities require a point-to-point

� � relationship between the peers, and are not designed for the multi-

� � point relationships which are available in ATM and other multi-access

� � environments.

Thompson, et. al.� � � � � � � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3336� � � � � � � � � � � � � � � � � � � � PPP Over AAL2� � � � � � � � � � � � � � � � December 2002

1. Introduction

� � PPP over AAL5 [2] describes the encapsulation format and operation of

� � PPP when used with the ATM AAL5 adaptation layer.� While this

� � encapsulation format is well suited to PPP transport of IP, it is

� � bandwidth inefficient when used for transporting small payloads such

� � as voice.� PPP over AAL5 is especially bandwidth inefficient when

� � used with RTP header compression [3].

� � PPP over AAL2 addresses the bandwidth efficiency issues of PPP over

� � AAL5 for small packet transport by making use of the AAL2 Common Part

� � Sublayer (CPS) [4] to allow multiple PPP payloads to be multiplexed

� � into a set of ATM cells.

2. Conventions

� � The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,

� � SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this

� � d...