HP Compaq Netelligent 5114, Compaq Netelligent 5226, Compaq Netelligent 5226A, Compaq Netelligent 5708FX Reference Guide

September 1996

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Compaq Computer Corporation

Enterprise Group Networking Products

Division

ONTENTS

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The Ba ndwidth C runch M igr a ti ng t o F a s t E t he r ne t Compe ting T ec hnologies

Fiber Distributed Data Interface

Asynchronous Trans fer Mode

Nete lligent R epea te r and Switch Overview

Nete lligent 1 0 M b/ s E thernet6 Nete lligent D ual-S pe ed

Ethernet Repeater Nete lligent D ual-s pee d

Ethernet Switch Netelligent 100 Mb/s Ethernet

Repeater

Netelligent 1000 10 Mb/s Unmanaged Repeaters

Netelligent 1000 10 or 100 Mb/s Unmanaged Repeaters

Netelligent 1000 100 Mb/s 8-Port Unmanaged TX Repeater

Netelligent 1000 100 Mb/s 24-Port Unmanaged TX Repeater 12

Netelligent 2000 Manageable, Stackable Repeaters 13

Netelligent 3000 10 Mb/s Manageable, Segmentable Repeaters 14

Netelligent 3000 Manageable, Stackable 100 Mb/s Repeaters 15

Netelligent 5006 6-Port 10/100 Switch 16

Netelligent 5006 6-Port 10/100-F L Switch 17

Netelligent 5012 12-Port 10/100 Switch 18

Netelligent 5000 12-Port Modular 10/100 Switch

Netelligent 5506 and 5606 100Base-T Switches

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Compaq Netelligent

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Repeater and Switch Products

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The acquisition of NetWorth, Inc. by Compaq Computer Corporation represents a firm

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commitment by Compaq to offer complete desktop-to-desktop client/server solutions that

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are unmatched in price and performance. The newly formed Networking Products

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Division provides a broad range of industry standard high-performance network

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solutions including repeaters, switches, routers, controllers, and integrated management

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software. Since its inception in 1985, NetWorth established itself as a price/performance

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leader in the networking industry. Today, Compaq continues the same leadership role

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with its proven Fast Ethernet technology and the most complete product line in the

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networking industry.

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HITE

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A PER

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041A/0996

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OMPAQ NETELLIGENT REPEATER AND SWITCH PRODUCTS

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OTICE

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The information in this publication is subject to change without notice.

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HE COMPETITIVE INFORMATION CONTAINED IN THIS

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PUBLICATION IS BASED ON DATA AVAILABLE FROM PUBLIC

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SOURCES AT THE TIME OF PUBLICATION

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C

ORPORATION SHALL NOT BE RESPONSIBLE FOR ANY

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INACCURACIES, ERRORS, OR OMISSIONS IN INFORMATION

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CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO

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INFORMATION OBTAINED FROM THIRD PARTY SOURCES

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INCLUDING PUBLICATIONS OF OTHER COMPANIES, THE PRESS, OR

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COMPETITIVE DATA ORGANIZATIONS

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OMPAQ BE LIABLE FOR DIRECT, INDIRECT, SPECIAL

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INCIDENTAL, OR CONSEQUENTIAL DAMAGES IN CONNECTION

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WITH THE USE OF THE MATERIAL CONTAINED IN THIS

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PUBLICATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

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DAMAGES

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IMPROVEMENTS OR CHANGES TO THIS PUBLICATION AND THE

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PRODUCTS AND SERVICES DESCRIBED AT ANY TIME, WITHOUT

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NOTICE OR OBLIGATION

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This publication does not constitute an endorsement of the product or products that were tested.

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The configuration or configurations tested or described may or may not be the only available

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solution. This test is not a determination of product quality or correctness, nor does it ensure

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compliance with any federal, state or local requirements. Compaq does not warrant products other

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than its own strictly as stated in Compaq product warranties.

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Compaq, Fastart, Compaq Insight Manager, SmartStart, NetFlex, DirectPlus, QuickFind, PaqFax,

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CompaqCare (design) are registered in United States Patent and Trademark Office.

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Netelligent, Smart Uplink, Scalable Clock Architecture are trademarks of Compaq Computer

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Corporation.

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Other product names mentioned herein may be trademarks and/or registered trademarks of

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their respective companies.

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Microsoft, Windows, Windows NT, Windows NT Advanced Server, SQL Server for Windows NT

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are trademarks and/or registered trademarks of Microsoft Corporation.

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Compaq Netelligent Repeater and Switch Products

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Version 1.2 (September, 1996)

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Document Number 041A/0996

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OMPAQ RESERV ES THE RIGHT TO MAKE

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N NO EVENT WILL

(cont’d.)

OMPAQ COMPUTER

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041A/0996

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HE BANDWIDTH CRUNCH

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For most of the 1980s, 10 megabit per second (Mb/s) Ethernet offered sufficient bandwidth for

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most network applications. Eventually, the development of client/server applications and

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increasing numbers of network connections quickly consumed that bandwidth. Segmentation

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technologies were developed to divide networks into smaller

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network traffic, temporarily relieving network congestion. However, segmentation created a need

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for more sophisticated ways to manage enterprise networks.

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Today, many organizations use Ethernet

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providing a dedicated 10 Mb/s of bandwidth to each individual connection. In fact, Ethernet

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switching is currently the fastest growing segment of the networking market, averaging 341%

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growth per year. Although Ethernet switching improves the bandwidth crunch for most over-

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burdened networks, many newer applications, such as imaging, publishing, and interactive

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databases demand a more robust solution. Also, newer PCI-based computers, with their increased

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processing power, and multimedia applications, which add audio and video, challenge the once-

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adequate capabilities of standard 10 Mb/s switching technology.

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To meet growing bandwidth needs,

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choice. Just as the 80286 processor has evolved to the Pentium (and now the Pentium Pro)

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processor, 10 Mb/s Ethernet has evolved to Fast Ethernet.

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IGRATING TO FAST ETHERNET

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Many organizations consider Fast Ethernet the logical migration path from 10 Mb/s Ethernet.

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Here are a few reasons why Fast Ethernet wins over competing technologies in the high-speed

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networking marketplace:

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It’s Easy to Migrate

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learning about the technology. Because Fast Ethernet evolved from standard 10 Mb/s Ethernet, most of the same rules apply. There also is no need to invest in new management and diagnostic tools.

It’s Ethernet Compatible

•

Ethernet. Therefore, there is no need learn or maintain a new protocol.

It’s Plug and Play

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“drop-in” enhancement for 10Base-T networks. In addition, the latest PC network controller cards support both 10 Mb/s and 100 Mb/s modes. Today’s PCs are Fast Ethernet-ready at the desktop.

It’s Cost Effective

•

ATM and FDDI, Fast Ethernet is a bargain. The cost of Fast Ethernet is almost as low as that of 10 Mb/s Ethernet, yet it offers 10 times the performance. Other high-speed technologies are at least twice the cost of Fast Ethernet.

The Compaq Netelligent Fast Ethernet product line is the most comprehensive in the market today. Competitive offerings typically lack breadth of features, support for Fast Ethernet standards in the product line, or a fully integrated solution. Compaq Netelligent products, which include a mix of 10Base-T and 100Base-T devices, let you migrate to Fast Ethernet at your own speed.

- When you migrate to Fast Ethernet, you don’t need to spend time

- Fast Ethernet uses the same packets and protocols as 10 Mb/s

- Fast Ethernet supports all major network wiring systems, making it a

- Compared to alternative high-speed networking technologies such as

switching

Fast Ethernet

to segment all or part of their networks,

has emerged as the network technology of

segments

(cont’d.)

by bridging and routing

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OMPETING TECHNOLOGIES

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Two main high-speed networking technologies currently compete with Fast Ethernet but are

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radically different in architecture and implementation: Fiber Distributed Data Interface (FDDI)

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and Asynchronous Transfer Mode (ATM). The following comparison describes the main

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characteristics of each technology.

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Fiber Distributed Data Interface

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FDDI is a proven and well-understood technology that delivers 100 Mb/s bandwidth with little

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overhead. Based on Token Ring, FDDI was developed as a backbone technology and offers many

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advanced features. Consequently, FDDI adapters and hubs are complex and expensive. Also,

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FDDI runs on fiber and twisted-pair cable (Category 5 only), while many installations use

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Category 3 twisted-pair.

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Asynchronous Transfer Mode

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ATM is a relatively new type of high-speed technology that uses

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throughput from speeds of 150 Mb/s up to 640 Mb/s on a single fiber-optic circuit. Although

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industry analysts view ATM as a long-term strategic technology primarily in backbones and wide

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area networks (WANs), a lack of standards presents major concerns about its interoperability.

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Also, because ATM is such a radical departure from today’s LAN technology, it requires

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expensive, complex, and time-consuming upgrades and learning curves.

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ETELLIGENT REPEATER AND SWITCH OVERVIEW

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The Compaq Netelligent product line offers a wide variety of innovative, standards-based shared

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media repeaters and switches.

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Shared media Ethernet repeaters, which consist of one or more independent network segments,

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allow devices such as file servers, disk servers, workstations, and printers to share a common

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network (segment) so that they can communicate with each other. All devices connected to a

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particular segment share the bandwidth available on that segment.

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Ethernet switches provide each network connection a dedicated 10 Mb/s or 100 Mb/s of

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bandwidth. In other words, each part is its own network segment. A switch transfers data traffic

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from each individual segment to its destination without affecting traffic on other segments.

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Shared media repeaters and switches can be managed or unmanaged. All managed repeaters

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support industry-standard SNMP (Simple Network Management Protocol) agents and hub

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specific MIB (Management Information Base) extensions.

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Compaq Netelligent repeaters and switches address the unique needs of workgroup and

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departmental client/server computing while allowing for future expansion to larger, enterprise-

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level networks.

.

(cont’d.)

cell-switching

to achieve

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Netelligent 1000

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smaller workgroups, while allowing the workgroups to migrate to larger departmental networks

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or expand to other workgroups.

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Netelligent 2000

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and high port densities. Included in this product line are a variety of stackable repeaters you can

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manage via industry-standard SNMP management software, such as Compaq Netelligent

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Management Software. Netelligent 2008/2016 repeaters are stackable up to 10 repeaters high.

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They feature Extended Repeater Architecture which allows a distance up to 250 feet between

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connected repeaters in a stack – ideal for multi-floor configurations.

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Netelligent 3000

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segmentation capabilities within each stack of repeaters. These high-end departmental repeaters

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protect network investments by providing configuration flexibility as network bandwidth

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requirements increase. As the need arises, Netelligent 3000 stackable repeaters can be logically

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segmented into independent network segments for greater network security, higher network

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performance, and flexible network configurations. Compaq offers segmentable 10 Mb/s and 100

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Mb/s repeaters in this product family.

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Netelligent 4000

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consolidating departmental and workgroup repeaters into a larger, manageable network system.

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These products serve as the central networking hub in an enterprise network system. Designed to

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support more than one departmental network and handle mission-critical data, Netelligent 4000

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products provide such features as sophisticated backplanes and redundant power capability.

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Netelligent 5000

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Ethernet switches offer up to 12 dedicated 10 Mb/s Ethernet ports and one modular 100 Mb/s

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high-speed port that accepts an FDDI or Fast Ethernet module. Compaq switches provide “wire

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speed” throughput between ports on the switch and offer the most modular platforms available in

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the market. Compaq offers 10 Mb/s and 100 Mb/s switches within this product family.

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10 Mb/s

10/100

Mb/s

100 Mb/s

FDDI

Netelligent

1000

Repe at ers

10 Mb/s

Repeater

Dual-Speed

Repeater

100Base-TX

Repeater

Workgroup

products include low-cost, unmanaged repeaters tailored to meet the needs of

products, designed for department-level networks, support built-in management

products are similar to Netelligent 2000 products, but have additional network

products include chassis-based 10 Mb/s Ethernet modules that are ideal for

products are based on network switching technology. Netelligent 10/100

Core T echnology

for10Mb/sand100Mb/sEthernet

Netelligen t

2000

Repe aters

(Stackab le )

10 Mb/s

Repeater

Net e llige nt

3000

Repeaters

(Stacka ble /Se g m e ntab le)

10 Mb/s

Repeater

100Base-TX

Repeater

Department

Netelligent

4000 Chassis

Series 4000

Media

Module s

(cont’d.)

Enterpr ise

Netelligent

5000

Switche s

Media

Modules

10/100

Switch

100/100

Switch

FDDI

Uplink

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ETELLIGENT

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RODUCTS AND POSITIONING

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Ethernet was initiated as a standard by DEC, Intel, and Xerox in the late 1970s and came to

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market in the early 1980s. The original application for Ethernet was to extend the distance of

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RS-232 cable from a terminal to the host.

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terminals and printers to connect to host computers over Ethernet. This allowed serial devices to

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be located up to 500 meters from the host, compared to the previous limit of 100 feet. When

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personal computers were introduced, Ethernet was used mainly for disk and printer sharing over

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the network. The development of Network Interface Controllers (NICs) allowed PCs to share

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expensive resources over the network and also access mainframe computers using terminal

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emulation. 10Base-T further increased the popularity of Ethernet by allowing the use of common

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Category 3 twisted-pair wiring. Even today, 10 Mb/s Ethernet remains the most widely used

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network technology worldwide.

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The Compaq Netelligent heritage is based on a complete line of award-winning 10Base-T

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repeater and chassis products. As hardware and software technologies advance exponentially,

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10Base-T products still lead the worldwide networking marketplace in the number of ports

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shipped per year. 10Base-T repeaters and NICs are the most affordable means for bringing

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devices together on a network, and Compaq is a leader in the 10Base-T market, offering low-cost

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workgroup, stackable, and segmentable repeaters.

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ETELLIGENT DUAL-SPEED ETHERNET REPEATER

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RODUCTS AND POSITIONING

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The migration from 10 Mb/s Ethernet to 100 Mb/s Ethernet typically involves a complete

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replacement of the legacy 10 Mb/s repeater with a new 100 Mb/s repeater. If the NICs do not

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support dual-speed operation, they must also be swapped out. Fortunately, many new NICs

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operate in either 10 Mb/s or 100 Mb/s mode. Most of these cards

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repeater and adjust to the appropriate data rate. Compaq is the first company to leverage this

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dual-speed ability into the repeater.

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The Netelligent dual-speed repeater supports the gradual migration from 10 Mb/s to 100 Mb/s

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within a single hub. The repeater houses two internal repeaters, one that operates at 10Mb/s and

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the other at 100 Mb/s. Each port on the hub connects to both repeaters. When a port receives a

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transmission, it autosenses the speed of the NIC attached to it and channels the data to the

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appropriate repeater in the hub. This innovative technology has been enthusiastically received by

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customers.

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Many installations still have workstations, printers, and laptops that only support 10 Mb/s

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Ethernet. The dual-speed repeater lets you migrate to Fast Ethernet at your own pace. Simply

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install the repeater, add a dual-speed NIC to the server for users who need Fast Ethernet

10 MB/S E

THERNET

Terminal servers

allowed serial devices such as dumb

(cont’d.)

autosense

the speed of the

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connectivity, and attach the network wiring. Dual-speed repeaters save time and money, as they

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eliminate the need to rewire the repeater connection every time you upgrade from 10 Mb/s to 100

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Mb/s.

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ETELLIGENT DUAL-SPEED ETHERNET SWITCH

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RODUCTS AND POSITIONING

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Netelligent 10/100 switches are designed for department-level needs but provide enterprise-level

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features. These switches protect your investment by letting you add product enhancements as you

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need them. Netelligent 10/100 switches allocate a dedicated 10 Mb/s of bandwidth to each port

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and a 100 Mb/s modular uplink to servers and network backbones.

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There are two primary applications for network switches. The first application is to connect

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multiple 10 Mb/s shared media repeaters into a network switch port, thereby segmenting each

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repeater from the next. This isolates network traffic within a single collision domain. If traffic is

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destined for another network, it passes through the switch at wire speed. The high-speed uplink

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connection on the switch connects to the enterprise backbone. The second application is to

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provide each workstation on the network a dedicated 10 Mb/s of bandwidth and switch the

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workstation traffic to a high-speed uplink connected to a server. Netelligent switches are designed

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with optimum flexibility for both applications. With support for over 8,000 MAC addresses,

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multiple Ethernet media options, and modular high-speed uplink technology, Netelligent 10/100

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switches are the most flexible solutions for integrating legacy and high-speed networks.

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All four versions of Netelligent 10/100 switches support a common set of high-speed modules.

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You can buy a 10/100 switch now to meet your current needs and use the same switch in the

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future as new high-speed technologies are available. Each switch uses a shared memory design

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which gives each switching function wire-speed access to a pool of shared memory. This

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architecture reduces contention and helps ensure compatibility with newer technologies such as

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virtual LAN support, and ATM cell-based technology. The software-based design allows Compaq

(cont’d.)

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