HP StorageWorks 8B FC User Manual

user's guide

version 3.0

isl trunking

www.hp.com

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© Hewlett-Packa rd C om pa n y, 2001. All rights reser v ed .

Edition: E1201

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Contents

Preface

About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Related Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Getting Software Updates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Chapter 1 Introducing ISL Trunking

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Advantages of ISL Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Trunking Groups, Ports and Masters . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Chapter 2 Installing ISL Trunking

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Installing ISL Trunking through Telnet . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Installing ISL Trunking through Web Tools. . . . . . . . . . . . . . . . . . . . . . 2-2

Chapter 3 Using ISL Trunking

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Administering ISL Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Frequently Asked Questions about ISL Trunking . . . . . . . . . . . . . . . . . 3-4

Glossary

Index

ISL Trunking User’s Guide iii

iv ISL Trunking User’s Guide

Preface

ISL Trunking is a licensed option that requires a valid license key to function. It is included and
enabled in switches with the performance upgrade option. It is supported for the HP Surestore FC
1Gb/2Gb Entry Switch 8B, FC 1Gb/2Gb Switch 8B, and FC 1Gb/2Gb Switch 16B products using
Fabric OS version 3.0.1b or later.

About This Guide

This guide provides the following information about ISL Trunking:

Chapter 1

Introducing ISL Trunking

Chapter 2

Installing ISL Trunking

Chapter 3

Using ISL Trunking

Related Publications

Related product information can be found in the following publications.
Provided with the FC Entry Switch 8B and FC Switch 8B:

• HP Surestore FC 1Gb/2Gb Entry Switch 8B and FC 1Gb/2Gb Switch 8B Getting Started

Guide (A7346-90902)

• HP Surestore FC 1Gb/2Gb Entry Switch 8B and FC 1Gb/2Gb Switch 8B Documentation

CD (A7346-11001)

Overview of the ISL Trunking feature.

Instructions for installing an ISL Trunking license key.

Information on how to use the ISL Trun king feature with telnet
commands or Web Tools. This chapter also includes a
Frequently Asked Questions section.

ISL Trunking User’s Guide v

Provided on the FC Entry Switch 8B and FC Switch 8B Documentation CD, and at the HP Web site
at

http://www.hp.com/support/fc8B:

• HP Surestore FC 1Gb/2Gb Entry Switch 8B and FC 1Gb/2Gb Switch 8B Getting Started

Guide (A7346-90902)

• HP Surestore FC 1Gb/2Gb Entry Swit ch 8B and FC 1Gb/2Gb Switch 8B Installation and

Reference Guide

• Fabric OS Reference Manual, version 3.0

• Fabric OS Procedures Guide, version 3.0

• Fabric OS Version 3.0.1b Release Notes

• Fabric Watch User’s Guide, version 3.0

• QuickLoop User’s Guide, version 3.0

• Web Tools User’s Guide, vers ion 3.0

• Distributed Fabrics User’s Guide, version 3.0

• Zoning User ’s Guide, version 3.0

• MIB Reference Manual, version 3.0

• ISL Trunking User’s Guide , version 3.0

• Advanced Performance Monitoring User’s Guide, version 3.0

• Merging Heteroge neou s Fabr i c s Ins t ru ctions

Provided with the FC 16B:

• HP Surestor e FC 1Gb/2Gb Switch 16B Quick Start Gui de (A7340-96002)

• HP Surestore FC 1Gb/2Gb Switch 16B Documentation CD (A7340-11001)

Provided on the FC 1Gb/2Gb Switch 16B Documentation CD and at the HP Web site at

http://www.hp.com/support/fc16B:

• HP Surestor e FC 1Gb/2Gb Switch 16B Quick Start Gui de (A7340-96002)

• HP Surestor e FC 1Gb/2Gb Switch 16B I nstallation and Referen ce Guide

• Fabric OS Reference Manual, version 3.0

• Fabric OS Procedures Guide, version 3.0

• Fabric OS Version 3.0.1 Release Notes

• Fabric Watch User’s Guide, version 3.0

• QuickLoop User’s Guide, version 3.0

• Web Tools User’s Guide, vers ion 3.0

• Distributed Fabrics User’s Guide, version 3.0

• Zoning User ’s Guide, version 3.0

• MIB Reference Manual, version 3.0

• ISL Trunking User’s Guide , version 3.0

• Advanced Performance Monitoring User’s Guide, version 3.0

• Merging Heteroge neou s Fabr i c s Ins t ru ctions

Information about Fi b re C hann e l st an dards and Fibre Channel in general can be f oun d o n t he Fi b re
Channel Industry Association Web site, located at

http://www.fibrechannel.com.

vi ISL Trunking User’s Guide

Getting Help

For information for the FC Entry Switch 8B and FC Switch 8B, visit the HP Web site at

http://www.hp.com/support/fc8B. For the most current technical support information for the

FC 16B, visit the HP Web site at
software support, all repairs, and spare components.

Be prepared to provide the following information to the support personnel:

http://www.hp.com/support/fc16B. This includes hardware and

• Switch serial number

• Switch world wide name

• Output from the supportShow telnet command

• Detailed description of the problem

• Topology configuration

• Troubleshooting steps already performed

Getting Software Updates

For information on obtaining sof tware up dates co n tact you r HP acco unt r e pres entative or technical
support.

ISL Trunking User’s Guide vii

viii ISL Trunking User’s Guide

Introducing ISL Trunking

This chapter provides the following information:

• Overview on page 1-1

• Advantages of ISL Trunking on page 1-1

• Trunking Groups, Ports and Masters on page 1-3

Overview

Interswitch Link (IS L) Trunking is an optionall y li censed product avail able on t he FC En try Sw itch
8B, FC Switch 8B, and FC 16B switches with Fabric OS version 3.0.1b or later. ISL Trunking is
managed using telnet commands or the Web Tools interface.

Chapter

1

The ISL Trunking feature allows up to four ISLs, connections between two switches through an
Expansion Port (E_Port), to merge logically into a single link. When using ISL Trunking to
aggregate bandwidth of up to four ports, the thro ug hpu t of the ISLs between sw it ches in a fabric is
quadrupled. For example, at 2 Gb/Sec speeds, ISL Trunking delivers ISL throughput of up to 8
Gb/Sec.

ISL Trunking also supports high-bandwidt h, large-scale Storage Area Networks (SANs) which
include core switches. The primary task of ISL Trunking is to route data and edge switches that
aggregate connections to servers and storage. ISL Trunking simplifies network design and reduces
the cost of storage management by optimizing bandwidth utilization and enabling load shar ing o f
traffic at the frame-level.

For a list of frequently asked questions about the ISL Trunking Feature, refer to Frequently Asked

Questions about ISL Trunking on page 3-4.

Advantages of IS L Tr u n ki ng

The ISL Trunking feature enhances switch to switch performance in Storage Area Networks while
simplifying management and improving reliability. Advantages of the ISL Trunking feature
include:

• Combining up to four ISLs into a single logical ISL

• Load sharing traffic across all ISLs in a trunk

• Maintaining in-order delivery of frames

• Avoiding rerouting if one of the server links between two switches fails

• Simplifying management by implementing fewer ISL s

ISL Trunking User’s Guide 1-1