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Layer Two Tunnelling Protocol (L2TP): ATM access network extensions (RFC3301)

IP.com Disclosure Number: IPCOM000008511D
Original Publication Date: 2002-Jun-01
Included in the Prior Art Database: 2002-Jun-19
Document File: 20 page(s) / 43K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

Y. T'Joens: AUTHOR [+3]

Abstract

This document augments the procedures described in RFC 2661 to further support ATM SVC (Switched Virtual Circuits) or PVC (Permanent Virtual Circuits) based access networks. L2TP (Layer 2 Tunneling Protocol) specifies a protocol for tunnelling PPP packets over packet based networks and over IP networks in particular. L2TP supports remote access by ISDN and PSTN networks. The extensions defined within this document allow for asymmetric bi-directional call establishment and service selection in the ATM access network.

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

Network Working Group                                         Y. T'Joens

Request for Comments: 3301                                      B. Sales

Category: Standards Track                                        Alcatel

                                                           P. Crivellari

                                                                Belgacom

                                                               June 2002

                 Layer Two Tunnelling Protocol (L2TP):

                     ATM access network extensions

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

   This document augments the procedures described in RFC 2661 to

   further support ATM SVC (Switched Virtual Circuits) or PVC (Permanent

   Virtual Circuits) based access networks.  L2TP (Layer 2 Tunneling

   Protocol) specifies a protocol for tunnelling PPP packets over packet

   based networks and over IP networks in particular.  L2TP supports

   remote access by ISDN and PSTN networks.  The extensions defined

   within this document allow for asymmetric bi-directional call

   establishment and service selection in the ATM access network.

Table Of Contents

   1. Introduction ..................................................  2

   1.1 Conventions ..................................................  2

   2. Assumptions ...................................................  3

   2.1 Topology .....................................................  3

   2.2 Connection Establishment .....................................  3

   2.3 LCP Negotiation ..............................................  3

   3. ATM access enhanced procedures ................................  3

   3.1 ATM connectivity .............................................  4

   3.2 Tunnel establishment .........................................  4

   3.3 Call establishment ...........................................  5

   3.3.1 Incoming Call Establishment ................................  5

   3.3.2 Outgoing Call Establishment ................................  6

T'Joens, et al.             Standards Track                     [Page 1]

RFC 3301          L2TP: ATM access network extensions          June 2002

   3.4 Framing ......................................................  6

   4. Service model issues ..........................................  7

   4.1 Authentication ...............................................  7

   4.2 Authorization ................................................  7

   5. New and extended AVPs .........................................  7

   5.1 New AVP Summary ..............................................  7

   5.2 New AVP definition ...........................................  8

   5.3 Changed AVP Definition ....................................... 12

   6. IANA considerations ........................................... 16

   7. Security considerations ....................................... 17

   8. Acknowledgements .............................................. 17

   9. References .................................................... 17

   10. Authors Addresses ..............................