RFC 3355 (rfc3355) - Page 1 of 13

Layer Two Tunnelling Protocol (L2TP) Over ATM Adaptation Layer 5 (AAL5)

Alternative Format: Original Text Document
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Network Working Group                                           A. Singh
Request for Comments: 3355                                      Motorola
Category: Standards Track                                      R. Turner
                                                                Paradyne
                                                                  R. Tio
                                                                S. Nanji
                                                        Redback Networks
                                                             August 2002


                  Layer Two Tunnelling Protocol (L2TP)
                   Over ATM Adaptation Layer 5 (AAL5)

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 Layer Two Tunneling Protocol (L2TP) provides a standard method
   for transporting the link layer of the Point-to-Point Protocol (PPP)
   between a dial-up server and a Network Access Server, using a network
   connection in lieu of a physical point-to-point connection.  This
   document describes the use of an Asynchronous Transfer Mode (ATM)
   network for the underlying network connection.  ATM User-Network
   Interface (UNI) Signaling Specification Version 4.0 or Version 3.1
   with ATM Adaptation Layer 5 (AAL5) are supported as interfaces to the
   ATM network.

Applicability

   This specification is intended for implementations of L2TP that use
   ATM to provide the communications link between the L2TP Access
   Concentrator and the L2TP Network Server.









Singh, et. al.              Standards Track
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