User`s guide

Chapter 1:

Introduction

Page 1-8 IRM3 User’s Guide

Before calling Cabletron Systems Technical Support, be prepared to

provide the following information:

• A detailed description of the failure.

• A description of any action already taken to resolve the problem

(swapping the bad unit with a unit known to work properly, etc.)

• A description of your network (environment, layout, cable type and

length, etc.)

• Serial numbers of all Cabletron Systems products used in the network.

• Revision level of all Cabletron Systems products in the network

• Revision level of ﬁrmware installed on all Cabletron Systems products

• The network load and frame size at the time of the failure, if known

• Product history (had the product been returned previously, did it have

the same problem, etc.)

• The RMA number generated, if any

1.7 DOCUMENT CONVENTIONS

The following conventions are used throughout this document:

NOTE

symbol. Calls the reader’s attention to any item of

information that may be of special importance.

TIP

symbol. Conveys helpful hints concerning procedures or

actions.

CAUTION

symbol. Contains information essential to avoid

damage to the equipment.

WARNING

symbol. Warns against an action that could result in

equipment damage, personal injury or death.