Skip to main content

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

The information below is for an old version of the document that is already published as an RFC.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 3355.
Authors Rene Tio , Suhail Nanji , Ajoy Singh , Rollins Turner
Last updated 2013-03-02 (Latest revision 2002-05-10)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Additional resources Mailing list discussion
Stream WG state (None)
Document shepherd (None)
IESG IESG state Became RFC 3355 (Proposed Standard)
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Dr. Thomas Narten
IESG note
Send notices to <>
A new Request for Comments is now available in online RFC libraries.

        RFC 3355

        Title:      Layer Two Tunnelling Protocol (L2TP) Over ATM
                    Adaptation Layer 5 (AAL5)
        Author(s):  A. Singh, R. Turner, R. Tio, S. Nanji
        Status:     Standards Track
        Date:       August 2002
        Pages:      13
        Characters: 25114
        Updates/Obsoletes/SeeAlso:  None

        I-D Tag:    draft-ietf-l2tpext-l2tp-atm-03.txt


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.

This document is a product of the Layer Two Tunneling Protocol
Extensions Working Group of the IETF.

This is now a Proposed Standard Protocol.

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.

This announcement is sent to the IETF list and the RFC-DIST list.
Requests to be added to or deleted from the IETF distribution list
should be sent to IETF-REQUEST@IETF.ORG.  Requests to be
added to or deleted from the RFC-DIST distribution list should

Details on obtaining RFCs via FTP or EMAIL may be obtained by sending
an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body 
help: ways_to_get_rfcs.  For example:

        To: rfc-info@RFC-EDITOR.ORG
        Subject: getting rfcs

        help: ways_to_get_rfcs

Requests for special distribution should be addressed to either the
author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.echo 
Submissions for Requests for Comments should be sent to
RFC-EDITOR@RFC-EDITOR.ORG.  Please consult RFC 2223, Instructions to RFC
Authors, for further information.