D-Link DE-1824EI User manual

10BASE-T Stackable Hubs
Intelligent Series
User’s Guide
Rev. 02w (Oct., 2004)
6SNMPT....01
Printed In Taiwan
RECYCLABLE

10BASE-T Stackable Hubs
FCC Warning
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with this user’s guide, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may
cause radio interference in which case the user may be required to take
adequate measures.
ii Table of Contents

10BASE-T Stackable Hubs
TABLE OF CONTENTS
0ABOUT THIS GUIDE..........................................................vi
Overview of the User's Guide................................................................... vi
1INTRODUCTION ..............................................................1-1
Overview.................................................................................................1-1
Media Connection Flexibility...........................................................................1-1
Stackability and Manageability........................................................................1-2
Innovative Display ...........................................................................................1-2
Security ............................................................................................................1-2
Highlights...............................................................................................1-3
General Highlights of the Intelligent Series.....................................................1-3
2EXTERNAL FEATURES AND INDICATORS...........................2-1
Front and Back Panel Layouts...............................................................2-1
Front Panel Indicators ...........................................................................2-3
3SETTING UP THE HUB ....................................................3-1
Power and Environmental Requirements...............................................3-1
Power Connection ..................................................................................3-2
Free-standing Installation......................................................................3-3
Rack-Mounting.......................................................................................3-3
Installing the Transceiver Tray ..............................................................3-4
Table of Contents iii

10BASE-T Stackable Hubs
Replacing the Power Supply...................................................................3-5
4BUILDING HUB STACKS..................................................4-1
Hub Roles ...............................................................................................4-1
Position Within the Stack.................................................................................4-2
Master Hub Roles.............................................................................................4-2
Slave Hub Roles...............................................................................................4-3
Hub ID..............................................................................................................4-4
Daisy-chaining Hubs into a Hub Stack ..................................................4-4
Segmenting Hubs....................................................................................4-5
5NETWORK CONNECTIONS...............................................5-1
Connecting Stations to the Hub..............................................................5-1
Cascading Hub Stacks............................................................................5-3
Using Twisted-pair Cabling .............................................................................5-4
Using Thin Coaxial Cabling.............................................................................5-5
Using Fiber or Thick Coaxial Cabling .............................................................5-6
Multilevel Cascading........................................................................................5-6
6USING THE CONSOLE INTERFACE....................................6-1
Connecting to the Hub............................................................................6-1
Console Usage Conventions...................................................................6-2
Logging in to the Hub Console...............................................................6-3
Logging In........................................................................................................6-3
Changing your Password..................................................................................6-5
Setting up the Master Hub......................................................................6-6
TCP/IP Settings................................................................................................6-6
Out-of-band management and console settings................................................6-9
Software Updates .............................................................................................6-9
SNMP Information.........................................................................................6-11
SNMP Traps...................................................................................................6-12
SNMP Security (Community Names)............................................................6-13
Adding and Deleting Users ............................................................................6-14
iv Table of Contents

10BASE-T Stackable Hubs
Hub Stack Configuration......................................................................6-16
Primary and Backup Master Hubs..................................................................6-16
Controlling Hubs in the Hub Stack ................................................................6-17
Controlling Individual Ports...........................................................................6-19
Segmenting Hubs ...........................................................................................6-23
Monitoring the Hub Stack ....................................................................6-24
Displaying Segment, Group, and Port Statistics.............................................6-21
Displaying Node Tracking Information .........................................................6-28
Resetting the Hub .................................................................................6-29
System Reset..................................................................................................6-29
Factory Reset..................................................................................................6-30
ASPECIFICATIONS .......................................................... A-1
BPOWER-ON SELF TEST ................................................ B-1
CBOOT CONFIGURATION FILE ......................................... C-1
DCABLES AND CONNECTORS .......................................... D-1
Crossover Cable....................................................................................D-2
Daisy-chain Cable.................................................................................D-3
RS-232 (DB9) Pin Specification............................................................D-3
0
Table of Contents v

10BASE-T Stackable Hubs
ABOUT THIS GUIDE
This User's Guide discusses how to use Intelligent 10BASE-T Stackable
Managed hubs. This series includes:
♦the 12/24-port stackable managed master hub, and
♦the 12/24-port standard hub.
In this User's Guide, the Intelligent Series stackable hubs are frequently
described simply as "hub" or "hubs" wherever the text applies to both
models. Model numbers are normally used only to differentiate between
models.
Overview of the User's Guide
The User's Guide is divided into the following chapters and their related
audiences:
♦Chapter 1. Introduction
Describes the features of the Intelligent Stackable
Managed Hubs.
♦Chapter 2. Indicators
Introduces the layout of the hub's front panel, rear
panel, and display indicators.
♦Chapter 3. Setting up the Hub
Describes basic installation procedures for setting
up the hub.
♦Chapter 4. Building Hub Stacks
vi Table of Contents

10BASE-T Stackable Hubs
Describes how to stack master and slave hubs into
an integrated hub stack.
♦Chapter 5. Network Connections
Describes how to connect workstations to the hub,
and the hub to other hubs and network components
on a local area network.
♦Chapter 6. Using the Console Interface
Describes how to configure the hub and a
manageable stack using the console program.
♦Appendix A. Product Specifications
Provides information on the physical and electrical
specifications of the hubs.
♦Appendix B. Power-On Self Test
Provides information about the POST messages
used for troubleshooting problems with the hub.
♦Appendix C. Boot Configuration File
Describes the hub boot configuration file.
♦Appendix D. Cables and Connectors
Describes the specifications of the cables and
connectors used with the hubs.
Table of Contents vii

10BASE-T Stackable Hubs
1
1 INTRODUCTION
The Intelligent Stackable Managed Hub Series lets you build a 10Mbps
Ethernet hub stack with full SNMP manageability, convenient setup, and an
unprecedented degree of flexibility. The Series allows you to turn your
network into the ideal connectivity solution by maximizing network
performance.
Overview
Important features of the Intelligent Series include:
Media Connection Flexibility
The Intelligent Series hubs support multiple Ethernet media types, with
twelve or twenty-four ports for twisted-pair cabling, and one AUI port which
provides connectivity for a variety of Ethernet wiring environments, from
basic workgroups to remote branch offices. An appropriate external
transceiver allows the AUI port to be used to connect to any type of Ethernet
medium.
Introduction 1-1

10BASE-T Stackable Hubs
Stackability and Manageability
A stack of Intelligent hubs can be separated up to 100 meters apart and still
keep their manageability. Up to 8 hubs can be daisy-chained together using
UTP or STP cable, with 7 client hubs sharing the master hub's SNMP
management agent, to provide a connectivity solution for departmental
Ethernet networks ranging up to 192 twisted-pair nodes. Bandwidth can be
substantially increased using micro-segmentation and LAN switching
technologies.
Innovative Display
Intelligent Series hubs are equipped with a large, clear display that shows an
extensive array of information at a glance, including link/receive and
partitioning status, bandwidth utilization, collision ratio, runt occurrences,
and data transmission errors.
Security
The Intelligent Series supports intrusion control. Intrusion Control prevents
unauthorized individuals from accessing the network. Through the network
management software, Ethernet addresses that represent authorized users can
be assigned to each hub port. If a packet is received from a port that contains
a source address from other than the authorized user, the port is disabled and
a notification is sent to the network manager.
1-2 Introduction