Cabletron Systems NB20E Manual De Usuario

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1-1
 
CHAPTER 1
INTRODUCTION
 
Welcome to the Cabletron Systems NB20E™ and NB25E™ Two Port 
Ethernet Bridges User's Manual. We have designed this user’s manual to 
serve as a simple installation and reference guide for the NB20E and 
NB25E, and to explain the capabilities and special features of each 
individual bridge. With the appropriate design, the Cabletron Systems 
NB25E or NB20E can dramatically improve network performance and 
bandwidth efficiency on heavily utilized network segments.
You should read through this manual to gain a full understanding of the 
NB20E and NB25E Bridges and their capabilities.
 
1.1
USING THIS  MANUAL
 
Chapter 1, 
 
Introduction
 
, discusses the capabilities of Cabletron Systems' 
NB20E or NB25E Two Port Ethernet Bridge. An explanation of the 
bridge filtering process and a discussion of bridge functionality in 
multi-bridge environments are also included. The chapter concludes with 
a list of related manuals.
Chapter 2, 
 
Installation Requirements/Specifications
 
, contains a list of 
hardware, software, location and environmental requirements that must be 
met before you install either bridge.
Chapter 3, 
 
Installing the NB20E or NB25E Bridge
 
, contains 
instructions for installing the NB20E or the NB25E Two Port Ethernet 
Bridge.
Chapter 4, 
 
Testing and Troubleshooting
 
, provides procedures for testing 
and troubleshooting the installation of the NB20E or the NB25E Bridge. 
Instructions for using LANVIEW™, Cabletron Systems’ built-in visual 
diagnostic and status monitoring system, are also included.
We assume that you have a general working knowledge of Ethernet or 
IEEE 802.3 type data communications networks and their physical layer 
components.