Lucent Technologies Cajun P112T Manuale utente

Cat No. 130001 Rev.0 September 1998

Lucent Technologies

Installation Guide

CAJUN P112T

24-PORT STACKABLE ETHERNET

WORKGROUP SWITCH

Cajun P112T Stackable Switch Installation Guide 1

Preface

Important Information

SAFETY PRECAUTIONS

CAUTION –TO REDUCE THE RISK OF ELECTRIC SHOCK AND FIRE

1. All servicing should be undertaken ONLY by qualified personnel. The parts inside the unit

CANNOT be serviced or repaired by the end user. Please call your service representative for

assistance.

2. Do NOT plug in, turn on or attempt to operate a damaged unit.

3. Ensure that the chassis ventilation slots in the unit are NOT BLOCKED.

4. Replace a “blown”fuse only with the same type and rating as is marked on the safety label

adjacent to the power inlet housing the fuse.

5. DO NOT operate the unit in a location where the maximum ambient temperature exceeds

50ºC.

6. Be sure to unplug the power supply cord from the wall socket BEFORE attempting to remove

and/or check the main power fuse.

PRECAUTIONS DE SECURITÉ

AVERTISSEMENT –POUR RÉDUIRE LE RISQUE DE CHOC ÉLECTRIQUE ET D’INCENDIE

1. Tout entretien doit être fait UNIQUEMENT par un personnel de service qualifié. Aucun

élément ne peut être réparé par un particulier.

2. NE PAS brancher, allumer ou essayer de faire fonctionner une unité sur laquelle un doute

existe quant à son bon fonctionnement.

3. S’assurer que les ouvertures d’aération du châssis dans l’appareil NE SONT PAS

OBSTRUEES..

4. Remplacer un fusible défaillant UNIQUEMENT par un modèle du même type suivant les

recommandations indiquées sur l’étiquette de securité posée dans le logement du fusible.

5. NE PAS faire fonctionner l’appareil dans un endroit où la temperature dépasse les 50ºC.

6. S’assurer de débrancher l’alimentation électrique AVANT toute manipulation sur le fusible

principal.

SICHERHEITSVORKEHRUNG

ACHTUNG –ZUR VERHINDERUNG DES RISIKOS VON ELEKTRISCHEM SCHLAG UND FEUER

1. Die Geräte enthalten keine Bauteile, die außerhalb des Lucent Servicezentrums gewartet oder

repariert werden können. Die Wartung darf NUR von qualifiziertem, technischem Personal

durchgeführt werden.

2. NIEMALS ein beschädigtes Gerät einschalten, oder versuchen es zu bedienen.

3. Vergewissern Sie sich, dass die Chassis Ventilationsöffnungen des Gerätes NICHT

BLOCKIERT sind.

Preface Safety Instructions

2Cajun P112T Stackable Switch Installation Guide

4. Austauschen einer durchgebrannten Sicherung NUR mit der gleichen Sorte und Belastbarkeit

wie sie auf der Sicherheitsaufschrift markiert ist. Die Aufschrift befindet sich neben der

Stromzufuhr wo sich auch der Sicherungskasten befindet.

5. Bedienen Sie das Gerät NICHT an einer Stelle an der die Umgebungstemperatur 50ºC

übersteigt.

6. Ziehen Sie das Netzkabel raus, BEVOR Sie versuchen die Hauptsicherung zu kontrollieren

oder auszutauschen.

Cajun P112T Stackable Switch Installation Guide 3

Chapter 1

Overview

This Installation Guide consists of three sections

• Description: A general description of the features of Lucent Technologies’

Cajun™ P112T Stackable Switch.

• Hub Installation: Step-by-step instructions for getting the hub up and running.

• Diagnostics: Illustration of the front panel with LED indicators and their

meanings.

Description

The Cajun P112T Stackable Switch provides wire-speed switching between 24

10Base-T ports and can operate in either half or full duplex Ethernet. Up to four hubs

can be stacked, and up 32,000 MAC addresses per stack are supported. A redundant

power supply may be used for enhanced fault tolerance.

The units are linked using the Cajun P110 Exoplane™ connectors. These make up a

multi-gigabit, non-blocking backplane. A stack of two or more hubs requires a Cajun

P110 NMA management agent.

The Cajun P112T Stackable Switch has a set of services which ensure zero data loss.

An automatic fairness mechanism ensures that all ports gain fair access to the Cajun

P110 Exoplane even at very high network utilization. Congestion management ensures

no packet loss by throttling back the traffic from the sending stations should the

buffers become saturated during peak load conditions.

Chapter 1Overview

4Cajun P112T Stackable Switch Installation Guide

Cajun P112T Stackable Switch Installation Guide 5

Chapter 2

Hub Installation

The procedure for getting the Cajun P112T up and running depends on whether the

hub is to operate standalone or as part of a stack.

First, attach the adhesive rubber legs to the base of the switch. If the switch is to be

rack mounted, do not attach the legs.

Standalone Operation

Getting the Cajun P110 hub working is quick and easy:

1. Connect the power cable to the hub,

2. Connect the Ethernet cables to the front panel ports,

To ensure proper ventilation, ensure that the Cajun P110 NMA slot is closed.

The hub is now fully operational.

In order to manage the Cajun P110 hub using Lucent CajunView™ (or any other

SNMP based management system), a Cajun P110 NMA network management agent is

required. To install the Cajun P110 NMA, refer to its Installation Guide.

Stacking Operation

To make the Cajun P112T work as part of a stack (and to give SNMP management

capabilities to a single Cajun P112T), a Cajun P110 NMA with the correct software

version is required. See the Cajun P112T Stackable Switch Release Notes for the

required version.

To check what software version you have, see the agent configuration window in

CajunView, or see the setup main menu of the Cajun P110 NMA.

1. Before adding a switch to the Cajun P110 stack, turn off the main power to the

stack, by individually switching off each hub

2. Place the Cajun P110 NMA in the top switch of the stack

3. If the Cajun P110 NMA contains the latest software version, go to step 4.

If the Cajun P110 NMA does not contain the latest agent software, you should

perform a software download of the latest version.

The latest software is in always shipped with the Cajun P110 NMA. You can also

download the new version from the Lucent Technologies FTP server. See the

Cajun P110 NMA Read Me First document for details.

Download is performed via TFTP using a Terminal console or via the timed

Download application from your management station. Details can be found in the

Cajun P110 NMA installation Guide.

Chapter 2 Hub Installation

6Cajun P112T Stackable Switch Installation Guide

Note: Before you download the Cajun P110 NMA software agent, please note that

when upgrading from Cajun P110 NMA version 8.0 or below to 8.1 or higher, all port

configuration parameter settings will be lost. Make a note of any definitions before

changing the stack configuration.

The following parameters will be set back to the factory defaults if they were set

using the management station:

• In the Cajun P114T Stackable Switch the Port Speed (10/100 Mbps) parameter

will be set to 100 Mbps.

• In the Cajun P112T, Cajun P113T and Cajun P114T, the Port Mode (Half/Full

Duplex) parameter, will be set to Half Duplex.

• The Auto Sense (Auto-negotiation) parameter in the Cajun P114T Stackable will

be set to Disabled.

• All ports will lose their VLAN assignment and will be reassigned to Generic

VLAN.

• The Administration Status of all Cajun modules will be Enabled.

In order to avoid any possible loops, any port that you disabled using the

management software must be physically disconnected before software

download. Once you have downloaded the new software, set the port to disabled

again and then reconnect the cable.

4. Place the Cajun P112T in the stack. The Cajun P110 NMA must be in the top

hub of the stack.

To ensure proper ventilation, ensure that all empty Cajun P110 NMA slots in the

stack are closed.

5. Connect Cajun hubs using Cajun P110 Exoplane cables, as shown in Figure 1.

Ahub connects to its upper neighbor through two Exoplane cables, and to its

lower neighbor through another two Exoplane cables.

Make sure that the Cajun P110 Exoplane cables are correctly seated by gently

exerting pressure on the back of the connector.

Chapter 2 Hub Installation

Cajun P112T Stackable Switch Installation Guide 7

Cabling Requirements:

• For correct operation, the Cajun P110 Exoplane must be fully connected, with all

units powered up. In case units are stacked, the Cajun P110 NMA must be

installed and connected to the Cajun P110 Exoplane.

Failure to observe this requirement will cause the Cajun units to block all traffic

on attached stations and segments.

• When using the Cajun P114T or Cajun P114F in the stack, make sure all

switches in the stack are connected using Cajun P110 Exoplane cables with

white connectors and marked C/S:B (part number 108362203). Extra cables can

be ordered from your local Lucent Technologies representative.

Figure 1Rear view of a Cajun P110 hub stack, showing how the hubs are linked via the

Cajun P110 P110 Exoplane cables. A Cajun P110 NMA resides in the

uppermost hub.

6. Two terminators are supplied with the Cajun P110 NMA. Insert the two

terminators into the lowest two connectors at the bottom of the stack, as shown in

Figure 1.

7. Turn on the mains power to the stack, by individually switching on each hub.

8. Connect the fiber-optic cables to the front panel ports.

Chapter 2 Hub Installation

8Cajun P112T Stackable Switch Installation Guide

Notes:

• If the Cajun P110 NMA in the stack contains the correct software version (as

specified in the Cajun P112T Stackable Switch Release Note) or higher, the

stack is now fully operational.

• When a new version of the Cajun P110 NMA software becomes available, you

should perform software download to benefit from the extra capabilities

provided. See the Cajun P110 NMA Installation Guide for details.

Rack Mounting

Cajun P110 hubs slot into a standard 19 inch rack.

Remove the rubber legs from the base of any hub that is to be rack mounted.

Place the hubs in the rack, and then connect the Cajun P110 Exoplane, as follows:

1. Snap open the ends of the front panel to reveal the fixing holes.

2. Slot the hub into the rack. Insert the hubs into the rack so that the hubs in a

logical stack lie directly on top of each other. Ensure that the Cajun P110 screw

holes are aligned with the rack hole positions exactly as shown in figure 3.

Stacking them in this way will allow the hubs to be easily connected using the

Exoplane cables.

3. Secure the hub in the rack using the screws. Use one screw on each side. Do not

overtighten the screws to avoid damaging the plastic.

4. Connect the Exoplane cables, as described above, and as illustrated in Figure 1.

5. Snap closed the hinged ends of the front panel.

Figure 2Cajun P110 rack mounting arrangement

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