Accton Technology ES3628EA User Manual

ES3628EA 24 10/100 Ports + 4G L2/L3/L4 Intelligent Switch
Installation Guide
www.edge-core.com
Installation Guide
24 10/100 Ports + 4G L2/L3/L4 Int elligent Switch
Layer 3 Standalone Switch with 24 100BASE-TX (RJ-45) Ports, 2 1000BASE-T (RJ-45) Ports, and 2 SFP Slots
ES3628EA E112007-DT-R01 150200064200A
Compliances and Safety Warnings
FCC - Class A
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.
You may use unshielded twisted-pair (UTP) for RJ-45 connections - Category 3 or better for 10 Mbps connections, Category 5 or better for 100 Mbps connections, Category 5, 5e, or 6 for 1000 Mbps connections. For fiber optic connections, you may use 50/125 or 62.5/ 125 micron multimode fiber or 9/125 micron single-mode fiber.
Warnings: 1. Wear an anti-static wrist strap or take other suitable measures to prevent
Industry Canada - Class A
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of the Department of Communications.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur: “Appareils Numériques,” NMB-003 édictée par le ministère des Communications.
electrostatic discharge when handling this equipment.
2. When connecting this hub to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards.
Japan VCCI Class A
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CE Mark Declaration of Conformance for EMI and Safety (EEC)
This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied:
RFI Emission: • Limit class A according to EN 55022:1998
• Limit class A for harmonic current emissi on ac cord ing to EN 61000-3 -2/ 199 5
• Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3 /1995
Immunity: • Product family standard according to EN 55024:1998
• Electrostatic Discharge according to EN 61000-4-2: 1995 (Contact Discharge: ±4 kV, Air Discharge: ±8 kV)
• Radio-frequency electromagnetic field according to EN 61000-4-3:1996 (80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/DC power supply: ±1 kV, Data/Signal lines: ±0 .5 kV)
• Surge immunity test according to EN 6 1000-4-5:1995 (AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)
• Immunity to conducted disturbance s, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80 % Modulation: 3 V/m)
• Power frequency magnetic field immunity test according to EN 61000-4-8:1993 (1 A/m at frequency 50 Hz)
• Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reductio n @5 00 ms, >95% Red uc t ion @5000 ms)
LVD: • EN 60950-1:2001
Caution: Do not plug a phone jack connector in the RJ-45 port. This may damage this
device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!
Australia AS/NZS 3548 (1995) - Class A
ACN 066 352 010
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Safety Compliance
Warning: Fiber Optic Port Safety
CLASS I
LASER DEVICE
When using a fiber optic port, never look at the transmit laser while it is powered on. Also, nev er look d irectly at the f iber T X port and fiber c able ends when they are powered on.
Avertissment: Ports pour fibres optiques - sécurité sur le plan optique
DISPOSITIF LASER
DE CLASSE I
Ne regardez jamais le laser tant qu'il est sous tension. Ne regardez jamais directement le port TX (Transmission) à fibres optiques et les embouts de câbles à fibres optiques tant qu'ils sont sous tension.
Warnhinweis: Faseroptikanschlüsse - Optische Sicherheit
LASERGER DER KLASSE I
Niemals ein Übertragungslaser betrachten, während dieses
ÄT
eingeschaltet ist. Niemals direkt auf den Faser-TX-Anschluß und auf die Faserkabelenden schauen, während diese eingeschaltet sind.
Power Cord Safety
Please read the following safety information carefully before installing the switch: WARNING: I nstallat ion and removal of the unit must be carried out by quali fied personnel
only.
• The unit must be connected to an earthed (grounded) outlet to comply with international safety standards.
• Do not connect the unit to an A.C. outlet (power supply) without an earth (ground) connection.
• The appliance coupler (the connector to the unit and not the wall plug) must have a configuration for mating with an EN 60320/IEC 320 appliance inlet.
• The socket outlet must be near to the unit and easily accessible. You can only remove power from the unit by disconnecting the power cord from the outlet.
• This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC 60950. The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions.
France and Peru only
This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labelled Neutral, connected directly to earth (ground).
Impédance à la terre
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Before making connections, make sure you have the correct cord set. Check it (read the label on the cable) against the following:
Power Cord Set
U.S.A. and Canada The cord set must be UL-approved and CSA certified.
The minimum specifications for th e flexible cord are:
- No. 18 AWG - not longer than 2 meters, or 16 AWG.
- Type SV or SJ
- 3-conductor The cord set must have a rated c urrent capacity of at least 10 A The attachment plug must be an earth-grounding type with NEMA
5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration.
Denmark The supply plug must comply with Section 107-2-D1, Standard
Switzerland The supply plug must comply with SEV/ASE 1011. U.K. The supply plug must comply with BS1363 (3- pin 13 A) and be fitte d
Europe The supply plug must comply with CEE7/7 (“SCHUKO”).
DK2-1a or DK2 - 5a .
with a 5 A fuse which complies with BS1362. The mains cord must be <HAR> or <BASE C> marked and be of type
HO3VVF3GO.75 (minimum).
The mains cord must be <HAR> or <BASE C> marked and be of type HO3VVF3GO.75 (minimum).
IEC-320 receptacle.
Veuillez lire à fond l'information de la sécurité suivante avant d'installer le Switch: AVERTISSEMENT: L’inst allation et la dépose de ce groupe doivent être confiés à un
personnel qualifié.
• Ne branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il n'y a pas de connexion de mise à la terre (mise à la masse).
• Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter les normes internationales de sécurité.
• Le coupleur d’appareil (le connecteur du groupe et non pas la prise murale) doit respecter une configuration qui permet un branchement sur une entrée d’appareil EN 60320/IEC 320.
• La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne pouvez mettre l’appareil hors circuit qu’en débranchant son cordon électrique au niveau de cette prise.
• L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme IEC 60950. Ces conditions ne sont maintenues que si l’équipement auquel il est raccordé fonctionne dans les mêmes conditions.
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France et Pérou uniquement:
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à rapport 1:1, avec un point secondaire de connexion portant l’appellation Neutre et avec raccordement direct à la terre (masse).
Cordon électrique -
Etats-Unis et Canada:
Danemark: La prise mâle d’alimentatio n doi t re specte r la sec tion 1 07-2 D1 de la
Suisse: La pris e mâle d’alimen ta tio n doit res pect er la norme SEV /A SE 101 1. Europe La prise secteur doit être con forme aux normes CEE 7/7 (“SCHUKO”)
Il doit être agréé dans le pays d’utilisation
Le cordon doit avoir reçu l’ho mologat ion de s UL et un ce rtific at de la CSA.
Les spe'cifications mini males pour un cable flexible sont AWG No. 18, ouAWG No. 16 p our un c able d e longueur infe'ri eure a` 2 me't res.
- type SV ou SJ
- 3 conducteurs Le cordon doit être en mesure d’acheminer un courant nominal d’au
moins 10 A. La prise femelle de branchement doit être du type à mise à la terre
(mise à la mass e ) et re s p ecter la configu r ation NEMA 5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V).
norme DK2 1a ou DK2 5a.
LE cordon secteur do it porter la mention <HA R> ou <BASEC> et doit être de type HO3VVF3GO.75 (minimum).
Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen:
WARNUNG: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.
• Das Gerät sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden.
• Das Gerät muß an eine geerdete Steckdose angeschlossen werden, welche die internationalen Sicherheitsnormen erfüllt.
• Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß einen gemäß EN 60320/IEC 320 konfigurierten Geräteeingang haben.
• Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.
• Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.
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Stromkabel
Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalt-
Europe Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mind estanforderung)
. Dies muss von dem Land, in dem es benutzt wird geprüft werden:
en.
sein und die Aufschrift <H AR> oder <BASEC> tragen. Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).
Warnings and Cautionary Messages
Warning: This product does not contain any serviceable user parts. Warning: Installation and removal of the unit must be carried out by qualified personnel
Warning: When connecting this device to a power outlet, connect the field ground lead
Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers
Caution: Wear an anti-static wrist strap or take other suitable measures to prevent
Caution: Do not plug a phone jack connector in the RJ-45 port. This may damage this
Caution: Use only twisted-pair cables with RJ-45 connectors that conform to FCC
only.
on the tri-pole power plug to a valid earth ground line to prevent electrical hazards.
are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on.
electrostatic discharge when handling this equipment.
device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!
standards.
Warnings (in German)
Achtung: Dieses Produkt enthält keine Teile, die eine Wartung vom Benutzer
benötigen.
Achtung: Installation und Deinstallation des Gerätes müssen von qualifiziertem
Achtung: Wenn das Gerät an eine Steckdose angeschlossen wird, muß der
Achtung: Dieses Gerät nutzt Laser zur Signalübertragung über Glasfasern. Die Laser
This guide is for system administrators with a working knowledge of network management. You should be familiar with switching and networking concepts.
Zielgruppe Diese Anleitung ist fuer Systhemadministratoren mit Er fahrung im Netzwerkmangament. Sie sollten mit Switch- und Netzwerkkonzepten vertraut sein.
Servicepersonal durchgeführt werden.
Masseanschluß am dreipoligen Netzstecker mit Schutzerde verbunden werden, um elektrische Gefahren zu vermeiden.
entsprechen den Anforderungen an eine Lasereinrichtung der Klasse 1 und sind durch ihre Bauart im normalen Betrieb sicher für die Augen. Trotzdem sollte niemals direkt in den einen Übertragungskanal geblickt werden, wenn er eingeschaltet ist.
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Environmental Statement
The manufacturer of this product endeavours to sustain an environmentally-friendly policy throughout the entire production process. This is achieved though the following means:
• Adherence to national legislation and regulations on environmental production standards.
• Conservation of operational resources.
• Waste reduction and safe disposal of all harmful un-recyclable by-products.
• Recycling of all reusable waste content.
• Design of products to maximize recyclables at the end of the product’s life span.
• Continual monitoring of safety standards.
End of Product Life Span
This product is manufactured in such a way as to allow for the recovery and disposal of all included electrical components once the product has reached the end of its life.
Manufacturing Materials
There are no hazardous nor ozone-depleting materials in this product.
Documentation
All printed documentation for this product uses biodegradable paper that originates from sustained and managed forests. The inks used in the printing process are non-toxic.
Purpose
This guide details the hardware features of the ES3628EA switch, including its physical and performance-related characteristics, and how to install the switch.
Related Publications
The following publication gives specific information on how to operate and use the management functions of the switch:
The 24 10/100 Ports + 4G L2/L3/L4 Intelligent Switch Management Guide Also, as part of the switch’s firmware, there is an online web-based help that describes all
management related features.
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Contents
Chapter 1: Introduction 1-1
Overview 1-1
Switch Architecture 1-1 Network Management Options 1-2
Description of Hardware 1-2
100BASE-TX and 1000BASE-T Ports 1-2 SFP Slots 1-2 Status LEDs 1-3 Optional Redundant Power Supply 1-4 Power Supply Receptacles 1-4
Features and Benefits 1-5
Connectivity 1-5 Expandability 1-5 Performance 1-5 Management 1-5
Chapter 2: Network Planning 2-1
Introduction to Switching 2-1 Application Examples 2-2
Collapsed Backbone 2-2 Network Aggregation Plan 2-3 Remote Connections with Fiber Cable 2-4 Making VLAN Connections 2-5 Using Layer 3 Routing 2-6
Application Notes 2-7
Chapter 3: Installing the Switch 3-1
Selecting a Site 3-1 Ethernet Cabling 3-1 Equipment Checklist 3-2
Package Contents 3-2 Optional Rack-Mounting Equipment 3-2
Mounting 3-3
Rack Mounting 3-3 Desktop or Shelf Mounting 3-5
Installing an Optional SFP Transceiver 3-6 Connecting to a Power Source 3-7 Connecting to the Console Port 3-8
Wiring Map for Serial Cable 3-8
ix
Contents
Chapter 4: Making Network Connections 4-1
Connecting Network Devices 4-1 Twisted-Pair Devices 4-1
Cabling Guidelines 4-1 Connecting to PCs, Servers, Hubs and Switches 4-1
Network Wiring Connections 4-2 Fiber Optic SFP Devices 4-3 Connectivity Rules 4-4
1000BASE-T Cable Requirements 4-4
1000 Mbps Gigabit Ethernet Collision Domain 4-4
100 Mbps Fast Ethernet Collision Domain 4-5
10 Mbps Ethernet Collision Domain 4-5 Cable Labeling and Connection Records 4-5
Appendix A: Troubleshooting A-1
Diagnosing Switch Indicators A-1
Diagnosing Power Problems with the LEDs A-1 Power and Cooling Problems A-1 Installation A-2 In-Band Access A-2
Appendix B: Cables B-1
Twisted-Pair Cable and Pin Assignments B-1
10BASE-T/100BASE-TX Pin Assignments B-1
Straight-Through Wiring B-2
Crossover Wiring B-2
1000BASE-T Pin Assignments B-3 1000BASE-T Cable Requirements B-4
Cable Test ing for Existing Category 5 Cable B-4
Adjusting Existing Category 5 Cabling to Run 1000BASE-T B-4 Fiber Standards B-4
Appendix C: Specifications C-1
Switch Features C-2 Management Features C-2 Standards C-3 Compliances C-3
Glossary
Index
x
Tables
Table 1-1 Port Status LEDs 1-3 Table 1-2 System Status LEDs 1-4 Table 3-1 Serial Cable Wiring 3-8 Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length 4-4 Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Length 4-4 Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length 4-5 Table 4-4 Maximum 1000BASE-LH Gigabit Ethernet Cable Length 4-5 Table 4-5 Maximum Fast Ethernet Cable Length 4-5 Table 4-6 Maximum Ethernet Cable Length 4-5 Table A-1 Troubleshooting Chart A-1 Table A-2 Power/RPS LEDs A-1 Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts B-2 Table B-2 1000BASE-T MDI and MDI-X Port Pinouts B-3
xi
Figures
Figure 1-1 Front and Rear Panels 1-1 Figure 1-2 Port LEDs 1-3 Figure 1-3 System LEDs 1-4 Figure 1-4 Power Supply Receptacles 1-4 Figure 2-1 Collapsed Backbone 2-2 Figure 2-2 Network Aggregation Plan 2-3 Figure 2-3 Remote Connection with Fiber Cable 2-4 Figure 2-4 Making VL AN Connections 2-5 Figure 2-5 IP Routing for Unicast Traffic 2-6 Figure 3-1 RJ-45 Connections 3-2 Figure 3-2 Attaching the Brackets 3-3 Figure 3-3 Installing the Switch in a Rack 3-4 Figure 3-4 Attaching the Adhesive Feet 3-5 Figure 3-5 Inserting an SFP Transceiver into a Slot 3-6 Figure 3-6 Power Receptacle 3-7 Figure 3-7 Serial Port (DB-9 DTE) Pin-Out 3-8 Figure 4-1 Making Twisted-Pair Connections 4-1 Figure 4-2 Network Wiring Connections 4-2 Figure 4-3 Making LC Port Connections 4-4 Figure B-1 RJ-45 Connector Pin Numbers B-1 Figure B-2 Straight-through Wiring B-2 Figure B-3 Crossover Wiring B-3
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Chapter 1: Introduction

Overview

The ES3628EA 24 10/100 Por ts + 4G L2/L3/L4 Intelligent Switch has 24 100BASE-TX ports, 2 1000BASE-T ports, and 2 SFP transceiver slots. There is also an SNMP-based management agent embedded on t he m ai n b oard. This agent supports both in-band and out -o f- band access for managing the switch.
This switch can easily tame your network with full support for Spanning Tree Protocol, Multicast Switch in g, Virtual LANs, and IP routing. It brings order to po or ly performing networks by segregating them into separate broadcast domain s w ith IEEE 802.1Q compliant VLANs, empowers multime di a applications with multicast switching and CoS servi ces, and eliminates conven tio nal ro ut er bot t lenecks.
It can be used to augment or completely replace slow legacy routers, IP traffic to release valuable resources for non-IP rout ing or WAN access. With wire-speed performance for Layer 2 and Layer 3, th i s sw it ch can significantly improve the throughput between IP segments or VLANs.
Port Status LEDs
5
678910
1234
100BASE-TX Ports SFP Slots
13 1817162120192423
11 121514
off-loading local
1000BASE-T Uplink Ports
22
Console Port
26
25
25 26 27 28
27
28
System Status LEDs
ES3628EA
Console
Power
RPS
Diag
RPS
DC
12V13A
100-240V~
50-60Hz 0.6A
Power SocketRedundant Power Socket
Figure 1-1 Front and Rear Panels

Switch Architecture

The ES3628EA emplo ys a wire-speed, non-blocking switching fabric. This permits simultaneous wire-spee d tr ansport of multiple packets at low lat ency on all ports. This switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection.
Switching Method
For communications wi t hi n th e sa me VLAN, the switch uses store-and-forward switching to ensure maximum data integrity. With this type of switching, the entire packet must be received int o a buffer and checked for validity bef or e being forwarded. This prevents errors from being propagated thro ughout the network. For communications between different VLANs, the swi t ch also performs
1-1
Introduction
1
store-and-forward checking on each packet cross ing t he switch, routing traffic at wire speed using RIP or OSFP for uni cas t traffic, and DV M RP or PIM f or mu ltica st traffic.

Network Management Options

This switch contains a comprehensive array of LEDs for “at-a-glance” monitoring of network and port status. I t also i ncludes a management agent th at allo w s you to configure or monitor the swi tc h using its embedded manage m ent so ftware, or vi a SNMP appli cations. To manage th e switch, you can make a di r ect connection to the RS-232 console port (out-of-band), or you can manage the switch through a network connection (in-band) using Te l net , the on- board Web agent, or Windows-based network management software.
For a detailed description of the advanced features, refer to the Management Guide.

Description of Hardware

100BASE-TX and 1000BASE-T Ports

The ES3628EA contains 24 100BASE-TX RJ-45 ports that operate at 10/100 Mbps, half or full duplex, and 2 1000BAS E- T R J-45 ports that operate at 1000 Mbps, full duplex. Because all RJ-45 ports on this switch support autom at i c M D I/MD I - X operation, you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. (See “10BASE- T/10 0BASE-TX Pin Assignments” on page B-1 or “1000BAS E-T Pin Assi g nm ents” on page B-3.)
Each of these ports support auto-negotiation, so the opti m um transmission mode (half or full duplex), and data rate (10 or 100 Mbps) can be selected automatically. If a device connected to one of these ports does not support aut o- n e got i at i on, th e communication mode of that port can be configu re d m anually.
Each port also supports auto- ne got i at ion of flow control, so the switch can automatically prevent por t buffers from becoming saturated.

SFP Slots

The ES3628EA contains two Small Form Factor Pluggable (SFP) transceiver slots. Optional SFP transceivers can be purchase d for 100BASE-FX, 1000BASE-T, 1000BASE-SX, 1000BASE-LX, an d 100 0BASE-LH media connections.
1-2
Description of Hardware
1

Status LEDs

The ES3628EA includes a dis pl ay panel for key system and port indic at ions that simplify installation and network troubleshooting. The LED s, which are located on the front panel for easy viewin g, are shown below and descr ib ed in t he f ol low i ng table.
Port Link and Activity
Figure 1-2 Port LEDs
Table 1-1 Port Status LEDs
LED Condition Status
RJ-45 Ports 1-24 Link/Activity On Amber The port has a valid 10 or 100 Mbps link.
Flashing Amber Flashing indicates activity. RJ-45 Ports 25-26 Link/Activity On Green The port has a valid 1000 Mbps link.
Flashing Green Flashing indicates activity. SFP Transceiver Slots 27-28 Link/Activity On Green An SFP transceiver has a valid 100 or 1000 Mbps link.
Flashing Green Flashing indicates activity.
1-3
Introduction
1
System Indicators
Figure 1-3 System LEDs
Table 1-2 System Status LEDs
LED Condition Status
Power On Green Internal power is operating normally.
On Amber Internal Power supply fault. Off Pow er off or failure.
Diag Flashing Green System self-diagnostic test in progress.
On Green System self-diagnostic test successfully completed. On Amber System self-diagnostic test has detected a fault. Alternating
Fan failure or system overheated.
Amber & Green
RPS On Green Redundant power supply is receiving power.
On Amber Fault in redundant power supply (including thermal or fan). Off There is no redundant power supply currently attached.

Optional Redundant Power Supply

The switch supports an optional Redundant Power Supply (RPS ) th at can supply power to the switch if the internal power supply should fail.

Power Supply Receptacles

There are two power rece ptac les on the rear panel of the switch. The stan dar d power receptacle is for the AC power cor d. The receptacle labeled “RPS” is for the optional Redundant Power Supply (RPS).
Power Socket
100-240V~
50-60Hz 0.6A
1-4
Redundant Power Socket
RPS
DC
12V13A
Figure 1-4 Power Supply Rec ept ac le s

Features and Benefits

1
Features and Benefits

Connectivity

• 24 100BASE-TX ports for 10 or 100 Mbps Ethernet connections. Auto-negotiation enables each RJ-45 port to automatically select the optimum communication mode (half or full duplex) if this feature is supported by the attached device; otherwise the port can be configured manually.
• 2 1000BASE-T ports for easy Gigabit Ethernet integration and for pro te ct ion of
your investment in legacy LAN equipment.
• RJ-45 ports support auto M D I/MD I - X pi nou t s el ecti on.
• Unshielded (UTP) cable supported on all RJ-45 por ts : Ca te gor y 3 or better for
10 Mbps connection s, C at egory 5 or better for 100 Mbps co nnections, and Category 5, 5e or 6 for 1000 Mb ps connections.
• IEEE 802.3-2002 Etherne t, Fast Ethernet, and Gigabit Ethern et com pliance
ensures compatibilit y w i th sta ndards-based hubs, netw or k cards and switches from any vendor.

Expandability

• 2 Small Form Factor Pluggabl e (SF P ) trans cei v er slo ts.
• Supports 100BASE-FX, 1000BASE-T, 1000BASE-SX, 1000BASE-LX, and 1000BASE-LH SFP-compatible tran sceivers.

Performance

• Transparent bridging
• Aggregate bandwidt h of up t o 12.8 Gbps
• Switch in g t abl e wit h a total of 16K MAC address ent r ies a nd 4 K I P ad dr es s en tr i e s
• Provides store-and-fo rward switching for intra-VL AN t ra ffi c, and IP r out i ng for inter-VLAN traffic
• Supports wire-speed switching at Layer 2, and wir e-speed routing at Layer 3
• Supports flow control, using back pressure for half duplex and IEEE 802.3x for full duplex
• Broadcast storm control

Management

• “At-a-glance” LEDs for easy troubleshooting
• Network management agent:
• Manages switch in-band or out-of-band
• Supports Telnet, SNMP/RMON and Web-based interface
1-5
1
Introduction
1-6

Chapter 2: Network Planning

Introduction to Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can parti tion a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking tech n ol ogy.
When performance bottlenecks are caused by congestion at the network access point (such as the network c ard for a high-volume file serve r), the device experiencing congest i on (server, power user or hub) can be attached direct l y t o a switched port. And, by using full-duplex mode, the bandwidth of the dedicated segment can be doubl ed t o m ax im ize throughput.
When networks are bas ed on repeater (hub) techno logy, the maximum distan ce between end stations is limi te d by a m aximum hop count. Howe ver, a switch turns the hop count back to ze ro.
So subdividing the network into smaller and more m anageable segments, and linking them to the larger network by means of a switch, removes this limitation.
A switch can be easily configured in any network to significantly boost bandwidth while using conventional cabling and network car ds .
2-1
Network Planning
2

Application Examples

The ES3628EA switch is no t on l y des i gned to segment your networ k, but also to provide a wide range of opti ons in setting up network connections. Some typical applications are described in the following pages.

Collapsed Backbone

The ES3628EA is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where si gnif ic an t gr owth is expected in the near futu re . In a basic stand-alone co nfiguration, it can prov i de direct ful l -duplex connections for up to 28 workstations or server s. Wh en t he time comes for further network expansion, you can easily build on this basic configuration by add in g Fast Ethernet or Gigabit Ethernet links directly to one or more workgroup switc hes .
In the figure below, this switch is operating as a collapsed backbone for a small LAN. It is providing dedicated fu ll- dup le x connections to workstations, power users, and servers.
ES3628EA
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Servers
1 Gbps Full Duplex
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Workstations
100 Mbps Full Duplex
Figure 2-1 Collapsed Backbone
...
Application Examples
2

Network Aggregation Plan

With 28 parallel bridging ports (i.e., 28 distin ct coll ision domains), the ES3628EA can collapse a complex network down into a single efficient bridged node, increasing overall bandwidth and throu gh put .
In the figure below, the 100BASE-TX ports on the switch are providing 100 Mbps full-duplex connections for up to 24 local segments thr ough stackable switches. In addition, the switch is also connecting several servers at 1000 Mbps.
10/100/1000 Switch
ES3628EA
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Server Farm
Fast Ethernet Switch Stack
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10/100 Mbps Segments
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Figure 2-2 Network Aggregation Plan
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2-3
Network Planning
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2

Remote Connections with Fiber Cable

Fiber optic technology allo w s fo r longer cabling than any other me di a type. A 1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a 1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH link up to 70 km. This allows the switch to serve as a collapsed backbone, providing direct connectivity for a widespread LAN.
A 1000BASE-SX SFP transceiver can be used for a high-speed connection between floors in the same building, a 1000BASE-LX S FP ca n be used to connect to other buildings in a campus setting, and a 1000BASE-LH SFP transceiver can be used for a long-haul connection t o a re mote site.
The figure below illustrates an ES3628EA switch connecting multiple segments with fiber cable.
ES3628EA
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1000BASE-SX MMF (500 m)
Server Farm
Remote Switch Remote Switch
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10/100/1000 Mbps Segments
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Link
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Figure 2-3 Remote Connection with Fiber Cable
Application Examples
2

Making VLAN Connections

This switch supports VLANs which can be used to organize any gro up of network nodes into separate broadcast doma i ns. VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This provides a more secure and cleaner network environment.
VLANs can be based on untagg ed port groups, or traffic can be explicitly tagged to identify the VLAN group to which it belongs. Untagged VLANs can be used for small networks attached to a single sw i tch. However, tagged VLANs should be used for larger networks, and all VLANs assigned to the inter-s witch links.
This switch also supports multiple spanning trees which allow VLAN groups to maintain a more stable path between all V LAN m em bers. This can reduce the overall amount of protoc ol traffic crossing the network, and pr ovi de a shorter reconfiguration time w hen any link in the spanning tree fails.
At Layer 3, VLANs are used to cre at e an IP int er fa ce, where one or more ports are assigned to the same IP segm ent. Traffic is automatically routed between different IP segments on the same swi t ch, w ith out any need to configure routin g pr ot ocols.
R&D
Testing
VLAN 2
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Tagged
Ports
Finance
VLAN 3
VLAN 4
Untagged Ports
Marketing
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unaware
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VLAN aware switch
Testing
Figure 2-4 Making VLAN Con nections
Note: When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use
untagged ports.
2-5
Network Planning
2

Using Layer 3 Routing

VLANs can significantly enhance network performance and security. However , if you use conventional router s t o i nt er connect VLANs, you can lose mo st of your performance advantage. Th e ES3 628EA provides wire-speed rou tin g, whi ch a llows you to eliminate your conventional IP routers, exc ep t for a router to handle non-IP protocols and a gateway router linked to the WAN. Just assign an IP address to any VLANs that need to communicate. The switch will continue to segregate Laye r 2 traffic based on VLANs, but will now pr ov id e int er -VLAN connections for IP applications. This switch will perform IP routing for specified VLAN groups, a directly connected subnetwor k, a remote IP subnetwork o r ho st add ress, a subnetwork broadcast address, a sw i t ch IP address on a specific IP sub net work, or an IP multicast address.
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IP Network 1
VLAN 2
Figure 2-5 IP Routing f or Un ic ast Tr af fic
IP Network 2

Application Notes

2
Application Notes
1. Full-duplex operati on only applie s t o point-to-point access ( such as when a
switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in hal f -d uplex mode.
2. Avoid using flow co nt ro l o n a por t con nected to a hub unless it is actual ly
required to solve a probl em . Otherwise back pressure jamm i ng signals may degrade overall perfor m ance for the segment attached to t he hub.
3. For network applications that require routing between dissimilar network types,
you can attach this switch d irectly to a router.
4. As a general rule the length of fiber optic cable for a single switched link should
not exceed:
• 1000BASE-SX: 550 m (1805 ft) for multimode fiber.
• 1000BASE-LX: 5 km (3.2 miles) for single-mode fiber.
• 1000BASE-LH: 70 km (43 miles) for single-mode fiber. However, power budget constraints must al so be considered when ca lcul at i ng
the maximum cable le ngth f or your specific environment.
2-7
Network Planning
2
2-8

Chapter 3: Installing the Switch

Selecting a Site

Switches can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a lo cation.
• The site should:
• be at the center of all the devi ces you want to link and near a power out le t .
• be able to maintain its temperature within 0 to 50 °C (32 to 122 °F) and its
humidity within 5% to 95 % , no n- condensing
• provide adequate space (approximately two inches) on all sides for proper air
flow
• be accessible for installing, cabling and maintaining the devices
• allow the status LEDs to be clearly visible
• Make sure twisted-pair cable is always routed away from power lines, fluorescent
lighting fixtures and other sources of electrical interfer ence, such as radios and transmitters.
• Make sure that a separate grounded power outlet that provides 100 to 240 VAC,
50 to 60 Hz, is within 2 m (6.5 feet ) of eac h device and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recomm e nded.

Ethernet Cabling

To ensure proper operation when installing either switch into a network, make sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the fol l owi ng criteria against the current in stallat i on of your network:
• Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables
with RJ-45 connectors; Category 3 or better for 10BASE-T, Categ ory 5 or better for 100BASE-TX, and Category 5 or better for 1000BASE-T.
• Protection from rad io frequency interference em issions
• Electrical surge suppression
• Separation of electrical wires (switch related or other) and electromagnetic fields
from data based networ k w iring
• Safe connections with no dam aged cables, connect or s or shi elds
3-1
Installing the Switch
3
RJ-45 Connector
Figure 3-1 RJ-45 Connection s

Equipment Checklist

After unpacking the switch, check the contents to be sure you hav e received all the components. Then, before begi nning the installation, be sure y ou ha ve all other necessary installation equipment.

Package Contents

• ES3628EA 24 10/100 Ports + 4G L2/L3/L4 Intelligent Switch
• Four adhesive foot pads
• Bracket M ounting Kit containing two brackets and four screws for attachi ng the brackets to the switch
• Power Cord—either US, Continental Europe or UK
• RS-232 console cable
• This Installation Guide
• Management Gui de

Optional Rack-Mounting Equipment

If you plan to rack-mount the switch, be sure to have the following equipment available:
• Four mounting screws for each device you plan to install in a rack—these are not included
• A screwdriver (Phillips or flathead, depending o n th e ty pe of screws used)
3-2

Mounting

3
Mounting
A switch unit can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow.

Rack Mounting

Before rack mounting th e swi t ch, pay particular attention to the follow ing factors:
Temperature: Since the temperat ure wit hi n a r ack as sem bl y ma y be hi gher t han the ambient room temper at ur e, check that the rack-enviro nm ent temperature is within the specified oper at in g te m pe rature range. (See page C-1. )
Mechanical Loading: Do not place any equipment on top of a rack-mounted unit.
Circuit Overloading: Be sure that the supply circuit to the rack asse m bl y i s no t overloaded.
Grounding: Rack-m oun t ed equipment should be pro per l y gr oun ded. Particular attention should be give n t o sup pl y connections other than direct connections to the mains.
To rack-mount devices:
1. Attach the brackets to th e dev i ce us i ng t he screws provided in the Bracket
Mounting Kit.
Figure 3-2 Attaching the Brackets
3-3
Installing the Switch
3
2. Mount the device in the rack, using four ra ck- m ounting screws (not prov id ed) .
Figure 3-3 Installing the Switch in a Rack
3. If installing a single swi t ch only, turn to “Connecting to a Power Source” at the end of this chapter.
4. If installing multiple switches, mount them in the rack, one below the other, in any order.
Montage (Rack Mounting Instructions - German)
Switch-Einheiten können an ein standardmäßiges 19- Zol l Einrichtungsrack, einen Arbeitstisch oder ein Regal mon tier t werd en. Folgend finden Sie die Montageanweisungen für je den Positionstyp.
Rack-Montage
Beachten Sie die folgende n Faktoren, bevor Sie die Rack- M ontage beginnen:
• Temperatur: Da die Tem peratur innerhalb einer Ra ck ei nheit höher als die
Raumumgebungste m peratur sein kann, stellen Sie bi t te si cher, dass die Rackumgebungstemperatur innerhalb des angegebenen Betriebstemperaturbe re ichs liegt. (Siehe "Temperatur" au f Sei te C-1. )
• Mechanische Last: Stellen Sie kein Gerät auf eine Rack-Montageeinheit.
• Stromüberlastung: Stell en Sie si cher, dass der Netzkreis der Rackeinheit nicht
überlastet wird.
• Erdung: Die Rack-Montageeinheit muss richtig geerdet werden. Besondere Acht
sollten Sie bei Verbindungen geben, die nicht direkt zum N etz führen.
So montieren Sie Geräte an ein Rack:
1. Befestigen Sie die Metallwinkel mit den im Metallwinkel-Montageset erhältlichen Schraube n an dem Gerät.
2. Befestigen Sie das Gerät mit vier Rackmon tage schrauben (nicht beigeleg t) an dem Rack.
3-4
Mounting
3. Wenn Sie nur einen Switch installieren, dann sp r i ngen Sie bitte über zu "Verbinden mit einer Stromquelle" auf Seite 3-7 am Ende dieses Ka pi te ls.
4. Wenn Sie mehrere Sw i tches installieren möchten, dann montieren Sie sie untereinander in einer beliebigen Reihenfolge.

Desktop or Shelf Mounting

1. Attach the four adhesive feet to the bottom of the first switch.
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Figure 3-4 Attaching the Adh esive Feet
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2. Set the device on a f la t surf ac e near an AC power source, ma ki ng sur e t her e are at least two inches of spac e on al l si des for proper air flow.
3-5
Installing the Switch
3
3. If installing a single sw i tch only, go to “Connecting to a Power Source” at the end of this chapter.
4. If installing multiple switches, attach four adhesive feet to each one. Place each device squarely on top of t he one below, in any order.

Installing an Optional SFP Transceiver

Figure 3-5 Inserting an SFP Tr ansceiver into a Slot
This switch supports 100BASE-FX, 1000BASE-T, 1000BASE-SX, 1000BASE-LX, and 1000BASE-LH SFP transceivers. To install an SFP transceiver, do the following:
1. Consider network and cabling requirements to select an appropriate SFP transceiver type.
2. Insert the tran sceiver with the optical connector facing outward and the slot connector facing down. N ot e th at SFP t ran sceivers are keyed so they can only be installed in one orientation.
3. Slide the SFP tran sceiver into the slot until it clicks into plac e.
Note: SFP transceivers are hot-swappable. The switch does not need to be powered off
before installing or removing a transceiver. However, always first disconnect the network cable before removing a transceiver.
3-6

Connecting to a Power Source

3
Connecting to a Power Source
To connect a device to a power source:
1. Insert the po w er cabl e plug directly into the receptacle located at the back of the device.
Figure 3-6 Power Receptacle
2. Plug the other end of the cable into a grounded, 3-pin socket.
Note: For International use, you may need to change the AC line cord. You must
use a line cord set that has been approved for the receptacle type in your country.
3. Check the front - panel LEDs as the device is powered on t o be sur e th e Power LED is lit. If not, check that the p ow er cable is correctly plugged in.
4. If you have purchased a Redundant Power Supply, connect it to the switch and to an AC power source now, following the inst ru ct ions included with the package.
3-7
Installing the Switch
3

Connecting to the Console Port

The DB-9 serial port on the sw i t ch ’s front panel is used to connect to the switch for out-of-band console configuration. The on-board configuration program can be accessed from a terminal or a P C run ni ng a terminal emulation progr am . The pi n assignments used to conn ect to th e ser i al port are provided in the follow in g table.
1
5
6 9
Figure 3-7 Serial Port (DB-9 DT E) Pin- O ut

Wiring Map for Serial Cable

Table 3-1 Serial Cable Wiring
Switch’s 9-Pin
Serial Port
2 RXD (receive data) <---------------------------- 3 TXD (transmit data) 3 TXD (transmit data) -----------------------------> 2 RXD (receive data) 5 SGND (signal ground) ------------------------------ 5 SGND (signal ground) No other pins are used.
Null Modem PC’s 9-Pin
DTE Port
The serial port’s configuration requirements are as follows:
• Default Baud rate—9 , 600 bps
• Character Size—8 Characters
• Parity—None
• Stop bit—One
• Data bits—8
3-8

Chapter 4: Making Network Connections

Connecting Network Devices

The ES3628EA 24 10/100 P or ts + 4G L2/L3 /L 4 In tel lige nt Swi tch i s des i gned to interconnect multiple segments (or collision doma in s) . It can be connected to network cards in PCs and servers, as well as to hubs, switches or routers. It may also be connected to oth er d evi ces using optional SFP trans ceivers.

Twisted-Pair Devices

Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors at both ends. Use Category 3 or better for 10BASE-T connections, Category 5 or better for 100BASE-TX connections, and Category 5, 5e or 6 cable for 1000BASE-T connections.

Cabling Guidelines

The RJ-45 ports on this swit ch support automatic MDI /MD I- X pi nout configuration, so you can use standard straight-through twisted-pair cables to connect to any other network device (PCs, servers, switches, routers, or hubs).
See Appendix B for further inf or m at i on on cabling.
Caution: Do not plug a phone jack connector into an RJ-45 port. This will damage the
switch. Use only twisted-pair cables with RJ-45 connectors that conform to FCC standards.

Connecting to PCs, Servers, Hubs and Switches

1. Attach one end of a twisted-pair cable segment to the device’s RJ-45 connector.
Figure 4-1 Making Twisted-Pair Connections
4-1
Making Network Connections
witch10/100
6724L3
4
2. If the device is a PC card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet. ( S ee “Network Wi r ing Connections” on page 4-2.) Oth erwise, attach the other end to an available po rt on the switch.
Make sure each twisted pair cabl e does not exceed 100 met ers (3 28 ft) in length.
3. As each connection is made, the Link LED ( on t he sw i tch) cor re sponding to each port will light to indicat e t hat th e connection is valid.
Note: Avoid using flow control on a port connected to a hub unless it is actually required
to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub.

Network Wiring Connections

To day, the punch-down block is an integral part of many of the ne wer equipment racks. It is actually part of the patch panel. Instructions for making connections in the wiring closet with this type of equipment follows.
1. Attach one end of a patch cable to an available port on the switch, and the other end to the patch panel.
2. If not already in pl ace, attach one end of a cable segment to the back of the patch panel where the punch-down block is located, and the other end to a modular wall outlet.
3. Label the cabl es to simplify future troubles hoo ting. See “Cable Labelin g and Connection Records ” on page 4-5.
Equipment Rack (side view)
Network Switch
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Figure 4-2 Network Wiring Connections

Fiber Optic SFP Devices

4
Fiber Optic SFP Devices
An optional SFP transceiver (100BASE-FX, 100 0BA SE- SX, 1000BASE- LX or 1000BASE-LH) can be used for a bac kbone connection between switch es, or for connecting to a high-speed server.
Each multimode fiber opti c po rt requires 50/125 or 62.5/125 m ic ro n m ul timode fiber optic cabling with an LC connector at both ends. Each single-mode fiber port requires 9/125 micron single-mode fiber optic cable with an LC connector at both ends.
Warning:This switch uses lasers to transmit signals over fiber optic cable. The lasers are
Note: When selecting a fiber SFP device, considering safety, please make sure that it
compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on.
can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser Class 1 SFP transceiver.
Hinweis: Bei der Wahl eines Glasfasertransceivers muß für die Beurteilung der
4. Check that the fiber terminators are cle an. You can clean the cable plug s by
5. Connect one end of the cable to the LC port on the switch and the other end to
Gesamtsicherheit beachtet werden, das die maximale Umgebungstemperatur des Transceivers für den Betrieb nicht niedriger ist als die für dieses Produkts. Der Glasfasertransceiver muß auch ein überprüftes Gerät der Laser Klasse 1 sein.
wiping them gently with a cl ean tissue or cotton ball moi stened with a little ethanol. Dirty fiber term inat or s on fiber cables will impair the qual i ty of the light transmitted through th e cable and lead to degraded pe rf or m ance on the port.
the LC port on the other device . Since LC connectors are keyed, the cable can be attached in only one orientation .
Figure 4-3 Making LC Port Connections
4-3
Making Network Connections
4
6. As a connection is made, check the Link LE D on the switch corresponding t o the port to be sure that the connection is valid.
100BASE-FX fiber optic ports operate a 100 Mbps full duplex. 10 00BASE-SX, 1000BASE-LX and 1000BASE-LH fiber optic ports operate at 1 Gbps full duplex. All of these SFP modules also support auto-negotiation of flow control. The maxi m um length for fiber optic cable depends on the fiber type as listed under “100 Mbps Fast Ethernet Collision Domain” on page 4-5 and “1000 Mbps Gigabit Ethernet Collision Domain” on page 4-4.

Connectivity Rules

When adding hubs (re peaters) to your network, please follow the connecti vity ru le s listed in the manuals for these products. However, note that because switches break up the path for connected devices into separ ate collision domains, you should not include the switch or connected cabling in your ca lcul at i ons for cascade length involving other device s.

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended tha t for all cr itical connections, or any ne w cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e specification includes test parameters t hat ar e only recommendations for Category 5. Therefor e, the firs t ste p in pr eparing existing Category 5 cab ling fo r running 1000BASE-T is a sim pl e t est of th e cable installation to be sure that it complies with the IEEE 802. 3- 2002 (formerly IEEE 802.3ab) s tanda rd s.

1000 Mbps Gigabit Ethernet Collision Domain

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length
Cable Type Maximum Cable Length Connector
Category 5, 5e, 6 100-ohm UTP or STP 100 m (328 ft) RJ-45
Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Length
Fiber Size Fiber Bandwidth Maximum Cable Length Connector
62.5/125 micron multimode fiber
50/125 micron multimode fiber
4-4
160 MHz/km 2-220 m (7-722 ft) LC 200 MHz/km 2-275 m (7-902 ft) LC 400 MHz/km 2-500 m (7-1641 ft) LC 500 MHz/km 2-550 m (7-1805 ft) LC

Cable Labeling and Connection Records

4
Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length
Fiber Size Fiber Bandwidth Maximum Cable Length Connector
9/125 micron single-mode fiber
Table 4-4 Maximum 1000BASE-LH Gigabit Ethernet Cable Length
Fiber Size Fiber Bandwidth Maximum Cable Length Connector
9/125 micron single-mode fiber
N/A 2 m - 5 km (7 ft - 3.2 miles) LC
N/A 2 m - 70 km (7 ft - 43.5 miles) LC

100 Mbps Fast Ethernet Collision Domain

Table 4-5 Maximum Fast Ethernet Cable Length
Type Cable Type Max. Cable Length Connector
100BASE-TX Category 5 or better 100-ohm UTP or STP 100 m (328 ft) RJ-45 100BASE-FX
multimode 100BASE-FX
single-mode
50/125 or 62.5/125 micron core multimode fiber (MMF)
9/125 micron core single-mode fiber (SMF) 20 km (12.43 miles) SC
2 km (1.24 miles) SC

10 Mbps Ethernet Collision Domain

Table 4-6 Maximum Ethernet Cable Length
Cable Type Maximum Length Connector
Twisted Pair, Categories 3, 4, 5 or better 100-ohm UTP
100 m (328 ft) RJ-45
Cable Labeling and Connection Records
When planning a network installation, it is essential to label th e opposing ends of cables and to record where each cable is connected. Doing so will enable you to easily locate inter-con nected devices, isolate faul ts an d change your topology without need for unnecessary time consumpti on .
To best m anage the physical implementations of your network, fol low th ese guidelines:
• Clearly label the opposing ends of each cable.
• Using your building’s flo or pla ns , dr aw a map of the location of all network-connected equipment. For each piece of eq ui pm ent, identify the devices to which it is connected.
4-5
Making Network Connections
4
• Note the length of each ca ble and the maximum cable len gt h supported by the switch ports.
• For ease of understandi ng, use a location-based key w hen assigning prefixes to your cable labeling.
• Use sequential number s f or cables that originate from the sam e equipment.
• Differentiate betwee n racks by naming accord in gly.
• Label each separate pie ce of equipment.
• Display a copy of your equipment map, including keys to all abbreviations at each equipment rack.
4-6

Appendix A: Troubleshooting

Diagnosing Switch Indicators

Table A-1 Troubleshooting Chart
Symptom Action
Power LED is Off • Power supply is disconnected.
• Check connections between the switch, the power cord, and the wall outlet.
• Contact your dealer for assistance. Power LED is Amber • Internal power supply has failed. Contact your local dealer for assistance. Diag LED is Amber • Power cycle the switch to try and clear the condition.
• If the condition does not clear, contact your dealer for assistance. Link LED is Off • Verify that the switch and attached device are powered on.
• Be sure the cable is plugged into both the switch and corresponding device.
• Verify that the proper cable type is used and its length does not exceed specified
limits.
• Check the adapter on the attached device and cable connections for possible
defects. Replace the defective adapter or cable if necessary.

Diagnosing Power Problems with the LEDs

The Power and RPS LEDs work in combination to indicate power status as follows.
Table A-2 Power/RPS LEDs
Power LED RPS LED Status
Green Green Internal power functioning normally; RPS is present. Green Amber Internal power functioning normally; RPS plugged in but faulty. Green Off Internal power functioning normally; RPS not plugged in. Amber Green Internal power faulty; RPS delivering power. Off Off Both internal power and RPS unplugged or not functioning.

Power and Cooling Problems

If the power indicator does not turn on when the power c or d is pl ugged in, you may have a problem with the pow er outlet, power cord, or inter nal power supply. However, if the unit powers off after running for a while, check for loose power connections, power lo sses or surges at the power out let , an d verify that the fans on the unit are unobs tr ucte d and runn ing pri or to shu td own. If y ou s ti ll c annot is olat e t he problem, then the intern al pow er supply may be defectiv e.
A-1
Troubleshooting
A

Installation

Verify that all system components have bee n pr operly installed. If one or more components appear to be malfunctioning (such as the power cord or network cabling), test them in an alternate environment where you are sur e th at all the oth er components are functioning properly.

In-Band Access

You can access the man agement agent in the switch from anywhere within the attached network using Telnet, a Web browser, or other network management software tools. However, you must first co nf ig ur e t he switch with a valid IP addres s, subnet mask, and defau lt gateway. If you have trouble establishing a link to the management agent, check to see if you have a valid net w or k connection. Then verify that you entered the correct IP address. Also, be sure the port through which you are connecting to th e swi t ch has not been disabled. If it has not been disabled, then check the network cabling that runs betwee n your remote location and the switch.
Caution: The management agent can accept up to four simultaneous Telnet sessions. If
the maximum number of sessions already exists, an additional Telnet connection will not be able to log into the system.
A-2

Appendix B: Cables

Twisted-Pair Cable and Pin Assignments

For 10BASE-T and 100BASE-TX connections, a twisted-pair cable must have two pairs of wires. For 1000BASE-T conn ections the twisted-pair cable must have four pairs of wires. Each wire pair is identi fie d by two different colors. For exampl e, one wire might be green and the other, green with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable.
Caution: Each wire pair must be attached to the RJ-45 connectors in a specific
orientation. (See “Cabling Guidelines” on page 4-1 for an explanation.)
Caution: DO NOT plug a phone jack connector into any RJ-45 port. This will damage the
The figure below illustra tes how the pins on the RJ-45 connector are numbered. B e sure to hold the connect or s in th e same orientation when attaching t he wires to the pins.
switch. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards.
8
1
Figure B-1 RJ-45 Connector Pin Numbers
8

10BASE-T/100BASE-TX Pin Assignments

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-oh m Ca te gory 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure length of any twisted-pair connection does not exceed 100 meters (328 feet).
The RJ-45 ports on the switch base unit support automatic MDI/MDI-X operation, so you can us e s trai ght -thr ough ca bles for all net wor k con nec tion s to PCs or s erve rs, or to other switches or hubs. In straight-through cable, pins 1, 2, 3, and 6, at one end of the cable, are connected straight through to pins 1, 2, 3, and 6 at the other end of the cable. When using any R J-45 port on this switch, yo u can use either straight-through or c ro ssover cable.
that the
B-1
Cables
B
Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts
Pin MDI Signal Name MDI -X Sig nal Na me
1 Transmit Data plus (TD+) Receive Data plus (RD+) 2 Transmit Data minu s (TD-) Receive Data minus (RD-)
3
6
4,5,7,8
Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.
Receive Data plus (RD+) Transmit Data plus (TD+) Receive Data minus (RD-) Transmit Data minus (TD-) Not used Not used

Straight-Through Wiring

If the twisted-pair cable is to join two ports and only one of the ports has an inter nal crossover (MDI-X), th e two pairs of wires must be straigh t-t hr ough. (When auto-negotiation is enabled for any RJ-45 port on t hi s swi t ch, you can use either straight-through or c ro ssover cable to connect to an y device type.)
We recommend connecti ng all four wire pairs as shown in the fol low i ng diagram to ease a future upgrade to Giga bi t Eth er net .
EIA/TIA 568B RJ-45 WiringStandard
10/100BASE-TX Straight-through Cable
White/Orange Stripe
Orange
End A
1 2 3 4 5 6 7 8
White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe
Brown
1 2 3 4 5 6 7 8
End B
Figure B-2 Straight-through Wiring

Crossover Wiring

If the twisted-pair cable is to join two ports and either both ports are labele d wi th an “X” (MDI-X) or neither port is labeled with an “X” (MDI), a crossover must be implemented in the wiring . ( Wh en auto-negotiation is enabl ed f or any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.)
We recommend connecti ng all four wire pairs as shown in the fol low i ng diagram to ease a future upgrade to Giga bi t Eth er net .
B-2
Twisted-Pair Cable and Pin Assignments
B
10/100BASE-TX Crossover Cable
White/Orange Stripe
Orange
End A
1 2 3 4 5 6 7 8
White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe
Brown
1 2 3 4 5 6 7 8
End B
Figure B-3 Crossover Wiring

1000BASE-T Pin Assignments

All 1000BASE-T ports support automatic MDI/MDI-X operation, so yo u ca n use straight-through cab les f or all net work connections to PCs or se rv er s, or t o other switches or hubs.
The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all four pairs of wires be connected. Note that for 1000BASE-T operation, all four pairs of wires ar e used for both transmit and receive.
Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for 1000BASE-T connections. Also be sure of any twisted-pair connection does not exceed 100 meters (328 feet)
that the length
.
Table B-2 1000BASE-T MDI and MDI-X Port Pinouts
Pin MDI Signal Name MDI-X Signal Name
1 Bi-directional Data One Plus (BI_D1+) Bi-directional Data Two Plus (BI_D2+) 2 Bi-directional Data One Minus (BI_D1-) Bi-directional Data Two Minus (BI_D2-) 3 Bi-directional Data Two Plus (BI_D2+) Bi-directional Data One Plus (BI_D1+) 4 Bi-directional Data Three Plus (BI_D3+) Bi-directional Data Four Plus (BI_D4+) 5 Bi-directional Data Three Minus (BI_D3-) Bi-directional Data Four Minus (BI_D4-) 6 Bi-directional Data Two Minus (BI_D2-) Bi-directional Data One Minus (BI_D1-) 7 Bi-directional Data Four Plus (BI_D4+) Bi-directional Data Three Plus (BI_D3+) 8 Bi-directional Data Four Minus (BI_D4-) Bi-directional Data Three Minus (BI_D3-)
B-3
Cables
B

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire pairs are connected. However, it is recommended tha t for all cr itical connections, or any ne w cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e specification includes test parameters t hat ar e only recommendations for Category 5. Therefor e, the firs t ste p in pr eparing existing Category 5 cab ling fo r running 1000BASE-T is a sim pl e t est of th e cable installation to be sure that it complies with the IEEE 802. 3ab standards.

Cable Testing for Existing Category 5 Cable

Installed Category 5 cabling must pass tests for Attenuation, Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing information is specified in the ANSI/TIA/EIA-TSB-67 standard. Additionally, cables must also pass test parameters for Return Loss and Equal-Level Far-End Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/EI A- TSB-95 Bulletin, “The Additional Transmission Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”
Note that when testing your cable installation, be sure to incl ude all patch cables between switches and end devices.

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

If your existing Category 5 installation does not meet one of th e te st param e te rs fo r 1000BASE-T, there are basically three measures that can be applied to try and correct the problem:
1. Replace any C ategory 5 patch cables with hig h- per f or m ance Category 5e or Category 6 cables.
2. Reduce the number of connectors used in the link.
3. Reconnec t so m e of th e connectors in the link.

Fiber Standards

The current TIA (Telecommunications Industry Association) 568-A specification on optical fiber cabling consists of one recognized cable type for horizontal subsystems and two cable types for backbone subsystems.
Horizontal 62.5/125 micron multim ode (two fibers per outlet). Backbone 62.5/125 micron multimode or singlemode.
TIA 568-B will allow the use of 50/125 micron multimode optical fiber in both the horizontal and backbone in ad di tion to the types listed above. All opt ic al fiber components and installation pra ct ices must meet applicable bui ldi ng and safety codes.
B-4

Appendix C: Specifications

Physical Characteristics

Ports
24 100BASE-TX RJ-45 ports, 2 1000BASE-T RJ-45 ports, 2 SFP slots
Network Interface
Ports 1-24: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) Ports 25-26: RJ-45 connect or, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) 1000BASE-T: RJ-45 (100-ohm, UTP or STP cable, Catego ry 5, 5e, or 6)
Buffer Architecture
32 Mbyte
Aggregate Bandwidth
12.8 Gbps
Switching Database
16K MAC address entries
LEDs
System: Power (Power Supply), Diag (Diagnostic), RPS (Redundant Power Supply) Port: Single LED indicating link, spe ed, and activity
Weight
3.1 kg (6.86 lbs)
Size
44.0 x 23.0 x 4.4 cm (17.4 x 9. 1 x 1. 7 in. )
Temperature
Operating: 0 to 50 °C (32 to 122 °F) Storage: -40 to 70 °C (-40 to 158 °F)
C-1
Specifications
C
Humidity
Operating: 5% to 95% (non-condensing)
AC Input
100 to 240 V, 50-60 Hz, 0.8A
Power Supply
Internal, auto-ranging transformer: 90 to 240 VAC, 47 to 63 Hz External, supports connec tion for 14-pin redundan t po wer supply
Power Consumption
28.44 Watts maximum
Maximum Current
0.56 A @110 VAC
0.32 A @ 240 VAC

Switch Features

Forwarding Mode
Store-and-forward
Throughput
Wire speed
Flow Control
Full Dupl ex: IEEE 802.3x Half Duplex: Back pressure

Management Features

In-Band Management
Telnet, HTTP, SSH, or SNMP manager
Out-of-Band Management
RS-232 DB-9 console port
Software Loading
TFTP in-band, or XModem ou t-of- band
C-2

Standards

IEEE 802.1D (Bridging) IEEE 802.3-2002 Ethernet, Fast Ethernet, Gigab it Ethernet Full-duplex flow control Link Aggregation Contro l Protocol ISO/IEC 8802-3

Compliances

Emissions
FCC Class A Industry Canada Clas s A EN 55022 (CISPR 22) Class A EN 61000-3-2/3 VCCI Class A C-Tick - AS/NZS 3548 (1995) Class A
Immunity
EN 61000-4-2/3/4/5/6/8/11
Standards
C
Safety
CSA/CUS (UL 60950-1, CSA 60950-1) CB (IEC 60950-1 & EN 60950-1 )
Electromagnetic Compatibility
CE Mark
C-3
C
Specifications
C-4

Glossary

10BASE-T
IEEE 802.3 specification for 10 M bps Et hernet over two pairs of Category 3, 4, o r 5 UTP cable.
100BASE-FX
IEEE 802.3u specification for 100 Mbps Fast Ethernet over two strands of 50/125 or
62.5/125 micron core fib er cable.
100BASE-TX
IEEE 802.3u specification for 10 0 M bps Fast Ethernet over two pairs of Categor y 5 UTP cable.
1000BASE-LH
Specification for long-haul Gigabit Ethe rn et ove r t wo st ra nds of 50/125, 62.5/125 or 9/125 micron core fiber cable.
1000BASE-LX
IEEE 802.3z specification for G ig ab it Et her net over two strands of 50/125, 62. 5/125 or 9/125 mic r on core fiber ca ble.
1000BASE-SX
IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125 or 62.5/125 micron core fiber cable.
1000BASE-T
IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all fo ur wire pair s) .
Auto-Negotiation
Signalling method allow ing each node to select its optimum operational mode (e.g., speed and duplex mode ) ba sed on the capabilities of the node to which it is connected.
Bandwidth
The difference between the hi ghest and lowest frequencies available for network signals. Also synonymous with wire speed, the ac tual speed of the data transmission along the cable.
Collision
A condition in which packets transmitted over the cable interfe re Their interference makes both signals unintelligible.
with each other.
Glossary-1
Glossary
Collision Domain
Single CSMA/CD LAN segment.
CSMA/CD
CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the communication method employed by Ethe rn et , Fa st Eth er net , or Giga bi t Eth er net .
End Station
A workstation, server, or other device that does no t for w ar d traffic .
Ethernet
A network communication system developed and standardized by DEC, Intel, and Xerox, using baseban d transmission, CSMA/CD access, logical bus topol ogy, and coaxial cable. The successor IEEE 802.3 standard prov i des for in t egr at i on int o t he OSI model and extends the physical layer and media with repeaters and implementations that oper at e on fiber, thin coax and twisted-pair cable.
Fast Ethernet
A 100 Mbps network communication system based on Et he rnet and the CSMA/CD access method.
Gigabit Ethernet
A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method.
Full Duplex
Transmission method that allows t w o network devices to transmit and receive concurrently, effectively doubling the bandwidth of t hat link .
IEEE
Institute of Electr i cal and Electronic Engineers.
IEEE 802.3
Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physica l lay er specifications.
IEEE 802.3ab
Defines CSMA/CD ac cess method and physica l layer specifications for 1000BASE-T Gigabit Ethernet.
IEEE 802.3u
Defines CSMA/CD ac cess method and physica l layer specifications for 100BASE-TX and 100BASE-FX Fast Ethernet.
Glossary-2
Glossary
IEEE 802.3x
Defines Ethernet frame start/stop requests and timers used for flow control on full-duplex links.
IEEE 802.3z
Defines CSMA/CD access method and physical layer specifications for 1000BASE Gigabit Ethernet.
LAN Segment
Separate LAN or collision domain.
LED
Light emitting diode use d for monitoring a device or network condition.
Local Area Network (LAN)
A group of interconnected computer and support devices.
Media Access Control (MAC)
A portion of the networking pr ot ocol that governs access t o the t ra nsmission medium, facilitating the exchange of data between networ k nodes.
MIB
An acronym for Manage m ent Info rm a t io n Base. It is a set of database objects that contains information about the device.
Modal Bandwidth
Bandwidth for multimode fiber is referred to as modal bandwidth because it varies with the modal field (or core dia m et er ) o f the f ib er. Modal bandw idth is specified in units of MHz per km, which indicates the amount of bandwidth supported by the fiber for a one km distance.
Network Diameter
Wire distance between two end stations in the same collision domain.
RJ-45 Connector
A connector for twisted-pair wiring.
Switched Ports
Ports that are on separate collision do mains or LAN segments.
TIA
Te lecommunications Indu stry Association
Glossary-3
Glossary
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that include s TCP as the primary transport pr ot oc ol , an d I P as t he network layer protocol.
UTP
Unshielded twisted-pair cable.
Virtual LAN (VLAN)
A Virtual LAN is a collection of network nodes that share the same co llisi on domain regardless of their physi cal l oca tion or connection point in the netw ork. A VLAN serves as a logical work gr oup with no physical barrier s, allo w in g us er s to share information and resourc es as though located on the same LAN.
Glossary-4

Index

Numerics
10 Mbps connectivit y ru le s 4-5 100 Mbps connectivity r ules 1000 Mbps connecti vity ru le s 1000BASE-T
pin assignments B-3
1-2
ports
100BASE-TX
pin assignments B-1 ports
1-2
10BASE-T
pin assignments B-1
1-2
ports
A
adhesive feet, attaching 3-5 air flow requirements applications
central wiring closet 2-3 collapsed backbone layer 3 routing VLAN connections
B
brackets, attaching 3-3 buffer size
C
cable
Ethernet cable compatibility labeling and connectio n re cords
cleaning fiber terminators compliances
EMC C-3 safety
C-3
connectivity rules
10 Mbps 4-5 100 Mbps 1000 Mbps
console port
pin assignments 3-8
console port, pin assign ments contents of package
2-6
C-1
4-5
4-4
4-5
4-4
3-1
2-2
2-4
4-3
3-2
3-1
3-8
4-5
cooling pr oblems A-1 cord se ts, international
D
DC input 1-4 desktop mounting device connections
E
electrical interference, avoiding 3-1 equipment check lis t Ethernet connect ivi ty rules
F
Fast Ethernet connec tivi ty ru l es 4-5 features
fiber cables full duplex connectivity
G
Gigabit Ethernet ca ble l engths 4-4 grounding for racks
I
indicators, LED 1-3 installation
L
laser safety 4-3 LED indicators
C-2
management
1-5
switch
4-3
connecting devices to the switch desktop or shelf mou nt ing port connections problems rack mounting site requirements wiring closet conne ct ion s
Diag 1-4 Link Power RPS
A-2
1-3
1-4
1-4
3-7
3-5
4-1
3-2
4-5
1-5
2-1
3-3
3-5
4-1
3-3
3-1
4-2
4-1
Index-1
Index
location requiremen ts 3-1
M
management
1-2
agent features out-of-band SNMP Web-based
mounting the switch
in a rack 3-3 on a desktop or shelf
multimode fiber optic ca bl es
N
network, connection s 4-1
O
optional redundant pow er supply 1-4 out-of-band manage m ent
P
package contents 3- 2 pin assignments
10/100BASE-TX 1000BASE-T console port
DB-9 ports, connecting to power, connecting to
R
rack mounting 3-3 rear panel r eceptacles redundant power supply RJ-45 port
connections
pinouts
1-5, C-2, C-3
1-2
1-2
1-2
3-5
4-3
1-2
B-1
B-1
B-3
3-8
3-8
4-1
3-7
1-4
1-4
1-2
4-1
B-3
routing applications RPS
optional redundant power supply 1-4
rubber foot pads, atta chi ng
S
screws for rack mounting 3-2 site selelc t ion SNMP agent specifications
compliances C-3 environmental physical
power standards, compliance status LEDs surge suppressor, using switch architecture switching
introduction to 2-1
method
T
Telnet A-2 temperature within a rack troubleshooting
in-band access A-2
power and cooling problems twisted-pair connect i on s
V
VLANs
routing
tagging
W
Web-based manag em ent 1-2
C-1
C-2
1-1
2-6
2-5
2-7
3-5
3-1
1-2
C-1
C-3
1-3
3-1
1-1
3-3
A-1
4-1
Index-2
ES3628EA E112007-DT-R01 150200064200A
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