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IP and ARP over Fibre Channel (RFC2625)

IP.com Disclosure Number: IPCOM000003212D
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2000-Sep-13

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Rajagopal: AUTHOR [+3]

Abstract

Fibre Channel (FC) is a high speed serial interface technology that supports several higher layer protocols including Small Computer System Interface (SCSI) and Internet Protocol(IP). Until now, SCSI has been the only widely used protocol over FC. Existing FC standards [3] do not adequately specify how IP packets may be transported over FC and how IP addresses are resolved to FC addresses. The purpose of this document is to specify a way of encapsulating IP and Address Resolution Protocol(ARP) over Fibre Channel and also to describe a mechanism(s) for IP address resolution.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 2% of the total text.

Network Working Group M. Rajagopal

Request for Comments: 2625 R. Bhagwat

Category: Standards Track W. Rickard

Gadzoox Networks

June 1999

IP and ARP over Fibre Channel

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 (1999). All Rights Reserved.

Abstract

Fibre Channel (FC) is a high speed serial interface technology that

supports several higher layer protocols including Small Computer

System Interface (SCSI) and Internet Protocol(IP). Until now, SCSI

has been the only widely used protocol over FC. Existing FC standards

[3] do not adequately specify how IP packets may be transported over

FC and how IP addresses are resolved to FC addresses. The purpose of

this document is to specify a way of encapsulating IP and Address

Resolution Protocol(ARP) over Fibre Channel and also to describe a

mechanism(s) for IP address resolution.

Table of Contents

1. Introduction ............................................... 3

2. Problem Statement .......................................... 5

3. IP and ARP Encapsulation ................................... 5

3.1 FC Frame Format ........................................ 5

3.2 MTU .................................................... 7

3.2.1 IP MTU ........................................... 7

3.2.2 Maximally Minimum IPv4 packet .................... 8

3.2.3 ARP MTU .......................................... 8

3.2.4 FC Data Field containing FARP Packet ............. 9

3.3 FC Port and Node Network Addresses ..................... 9

3.4 FC Sequence Payload Format ............................. 10

3.5 Bit and Byte Ordering .................................. 12

4. ARP ........................................................ 12

4.1 Address Resolution .................................... 12

4.2 ARP Packet Format ...................................... 13

4.3 ARP Layer Mapping and Operation ........................ 15

4.4 ARP Broadcast in a Point-to-Point Topology ............. 16

4.5 ARP Broadcast in a Private Loop Topology ............... 16

4.6 ARP Broadcast in a Public Loop Topology ................ 16

4.7 ARP Operation in a Fabric Topology ..................... 17

5. FARP ....................................................... 18

5.1 Scope .................................................. ...