IP and ARP over Fibre Channel
RFC 2625
Document | Type |
RFC - Proposed Standard
(June 1999; Errata)
Obsoleted by RFC 4338
|
|
---|---|---|---|
Authors | Wayne Rickard , Raj Bhagwat , Murali Rajagopal | ||
Last updated | 2020-01-21 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 2625 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | (None) |
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 Rajagopal, et al. Standards Track [Page 1] RFC 2625 IP and ARP over Fibre Channel June 1999 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 .................................................. 18 5.2 FARP Overview .......................................... 18 5.3 FARP Command Format .................................... 20 5.4 Match Address Code Points .............................. 22 5.5 Responder Flags ........................................ 23 5.6 FARP Support Requirements .............................. 24 6. Exchange Management ........................................ 25 6.1 Exchange Origination ................................... 25 6.2 Exchange Termination ................................... 25 7. Summary of Supported Features .............................. 25 7.1 FC-4 Header ............................................ 25 7.2 R_CTL .................................................. 26 7.3 F_CTL .................................................. 27 7.4 Sequences .............................................. 28 7.5 Exchanges .............................................. 29 7.6 ARP and InARP ......................................... 30 7.7 Extended Link Services (ELS) ........................... 31 7.8 Login Parameters ....................................... 31 7.8.1 Common Service Parameters - FLOGI ............... 32 7.8.2 Common Services Parameters - PLOGI ............... 32 7.8.3 Class Service Parameters - PLOGI ................. 32 8. Security Considerations .................................... 32 8.1 IP and ARP Related ..................................... 32 8.2 FC Related ............................................. 32 9. Acknowledgements ........................................... 33 10. References ................................................ 33 11. Authors' Addresses ........................................ 35Show full document text