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IP and ARP on HIPPI (RFC1374)

IP.com Disclosure Number: IPCOM000002198D
Original Publication Date: 1992-Oct-01
Included in the Prior Art Database: 2019-Feb-11
Document File: 43 page(s) / 56K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Renwick: AUTHOR [+1]

Related Documents

10.17487/RFC1374: DOI

Abstract

The ANSI X3T9.3 committee has drafted a proposal for the encapsulation of IEEE 802.2 LLC PDUs and, by implication, IP on HIPPI. Another X3T9.3 draft describes the operation of HIPPI physical switches. X3T9.3 chose to leave HIPPI networking issues largely outside the scope of their standards; this document discusses methods of using of ANSI standard HIPPI hardware and protocols in the context of the Internet, including the use of HIPPI switches as LANs and interoperation with other networks. This memo is intended to become an Internet Standard. [STANDARDS-TRACK]

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This is the abbreviated version, containing approximately 6% of the total text.

Network Working Group J. Renwick Request for Comments: 1374 A. Nicholson Cray Research, Inc. October 1992 IP and ARP on HIPPI

Status of this Memo

This RFC specifies an IAB standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "IAB Official Protocol Standards" for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

The ANSI X3T9.3 committee has drafted a proposal for the encapsulation of IEEE 802.2 LLC PDUs and, by implication, IP on HIPPI. Another X3T9.3 draft describes the operation of HIPPI physical switches. X3T9.3 chose to leave HIPPI networking issues largely outside the scope of their standards; this document discusses methods of using of ANSI standard HIPPI hardware and protocols in the context of the Internet, including the use of HIPPI switches as LANs and interoperation with other networks.

Table of Contents

Introduction 2 Scope 2 Definitions 3 Equipment 4 Protocol 6

Packet Format 6 48 bit Universal LAN MAC addresses 10 I-Field Format 11 Rules For Connections 13 MTU 15

Camp-on 16 Address Resolution 16

ARP and RARP Message Format 17 ARP Procedure 21 ARP Implementation Methods 22

Renwick & Nicholson [Page 1]

RFC 1374 IP and ARP on HIPPI October 1992

ARP Example 23 Discovery of One’s Own Switch Address 25

Path MTU Discovery 27 Channel Data Rate Discovery 27 Performance 29 Sharing the Switch 31 Appendix A -- HIPPI Basics 31 Appendix B -- How to Build a Practical HIPPI LAN 37 References 41 Security Considerations 42 Authors’ Addresses 42

Introduction

The ANSI High-Performance Parallel Interface (HIPPI) is a simplex data channel. Configured in pairs, HIPPI can send and receive data simultaneously at nearly 800 megabits per second. (HIPPI has an equally applicable 1600 megabit/second option.) Between 1987 and 1991, the ANSI X3T9.3 HIPPI working group drafted four documents that bear on the use of HIPPI as a network interface. They cover the physical and electrical specification (HIPPI-PH [1]), the framing of a stream of octets (HIPPI-FP [2]), encapsulation of IEEE 802.2 LLC (HIPPI-LE [3]), and the behavior of a standard physical layer switch (HIPPI-SC [4]). HIPPI-LE also implies the encapsulation of Internet Protocol[5]. The reader should be familiar with the ANSI HIPPI documents, copies of which are archived at the site "nsco.network.com" in the directory "hippi," and may be obtained via anonymous FTP until they become published standards.

HIPPI switches can be used to connect a variety of computers and peripheral equipment for many purposes, but the working group stopped short of describing their use as Local Area Networks. This memo takes up where the working group left off, using the guiding principle that except for length and hardware header, Internet datagrams sent on HIPPI should be identical to the same datagrams sent on a conventional network, and that any datagram sent on a conve...

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