Browse Prior Art Database

Classical IP and ARP over ATM (RFC2225)

IP.com Disclosure Number: IPCOM000002783D
Original Publication Date: 1998-Apr-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 23 page(s) / 61K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Laubach: AUTHOR [+2]

Abstract

This memo defines an initial application of classical IP and ARP in an Asynchronous Transfer Mode (ATM) network environment configured as a Logical IP Subnetwork (LIS) as described in Section 5. This memo does not preclude the subsequent development of ATM technology into areas other than a LIS; specifically, as single ATM networks grow to replace many Ethernet local LAN segments and as these networks become globally connected, the application of IP and ARP will be treated differently. This memo considers only the application of ATM as a direct replacement for the "wires" and local LAN segments connecting IP end-stations ("members") and routers operating in the "classical" LAN-based paradigm. Issues raised by MAC level bridging and LAN emulation are beyond the scope of this paper.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group M. Laubach

Request for Comments: 2225 Com21, Inc.

Category: Standards Track J. Halpern

Obsoletes: 1626, 1577 Newbridge Networks, Inc.

April 1998

Classical IP and ARP over ATM

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 (1998). All Rights Reserved.

Table of Contents

1. ABSTRACT . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. ACKNOWLEDGMENT . . . . . . . . . . . . . . . . . . . . . . . 2

3. CONVENTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 3

4. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . 3

5. IP SUBNETWORK CONFIGURATION . . . . . . . . . . . . . . . . . 6

5.1 Background . . . . . . . . . . . . . . . . . . . . . . . . 6

5.2 LIS Configuration Requirements . . . . . . . . . . . . . . 7

5.3 LIS Router Additional Configuration . . . . . . . . . . . . 8

6. IP PACKET FORMAT . . . . . . . . . . . . . . . . . . . . . . 8

7. DEFAULT VALUE FOR IP MTU OVER ATM AAL5 . . . . . . . . . . . 9

7.1 Permanent Virtual Circuits . . . . . . . . . . . . . . . . 9

7.2 Switched Virtual Circuits . . . . . . . . . . . . . . . . . 9

7.3 Path MTU Discovery Required . . . . . . . . . . . . . . . . 11

8. LIS ADDRESS RESOLUTION SERVICES . . . . . . . . . . . . . . . 11

8.1 ATM-based ARP and InARP Equivalent Services . . . . . . . . 11

8.2 Permanent Virtual Connections . . . . . . . . . . . . . . . 12

8.3 Switched Virtual Connections . . . . . . . . . . . . . . . 12

8.4 ATMARP Single Server Operational Requirements . . . . . . . 13

8.5 ATMARP Client Operational Requirements . . . . . . . . . . 14

8.5.1 Client ATMARP Table Aging . . . . . . . . . . . . . . . . 16

8.5.2 Non-Normal VC Operations . . . . . . . . . . . . . . . . 17

8.5.3 Use of ATM ARP in Mobile-IP Scenarios . . . . . . . . . . 17

8.6 Address Resolution Server Selection . . . . . . . . . . . . 17

8.6.1 PVCs to ATMARP Servers . . . . . . . . . . . . . . . . . 18

8.7 ATMARP Packet Formats . . . . . . . . . . . . . . . . . . . 18

8.7.1 ATMARP/InATMARP Request and Reply Packet Formats...