Smc 6248M Installation Guide

TigerStack 10/100

48-Port 10/100Mbps
Stackable Managed Switch

◆ 48 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports

◆ 2 Gigabit RJ-45 ports shared with 2 SFP transceiver slots

◆ 2 Gigabit stacking ports that act as Ethernet ports in

standalone mode

◆ Stacks up to 4 units

◆ 17.6 Gbps of aggregate bandwidth

◆ Non-blocking switching architecture

◆ Spanning Tree Protocol and Rapid STP

◆ Up to four LACP or static 8-port trunks

◆ RADIUS and TACACS+ authentication

◆ Rate limiting for bandwidth management

◆ CoS support for four-level priority

◆ Full support for VLANs with GVRP

◆ IP Multicasting with IGMP Snooping

◆ Manageable via console, Web, SNMP/RMON

Installation Guide

SMC6248M

TigerStack 10/100
Installation Guide

From SMC’s Tiger line of feature-rich workgroup LAN solutions

38 Tesla
Irvine, CA 92618
Phone: [phone]

February 2005

Pub. # 150000017100H

Information furnished by SMC Networks, Inc. (SMC) is believed to be
accurate and reliable. However, no responsibility is assumed by SMC for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or oth­erwise under any patent or patent rights of SMC. SMC reserves the right to
change specifications at any time without notice.

Copyright © 2005 by

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

All rights reserved. Printed in Taiwan

Trademarks:

SMC is a registered trademark; and EZ Switch, TigerStack and TigerSwitch are trademarks of SMC
Networks, Inc. Other product and company names are trademarks or registered trademarks of their
respective holders.

L

IMITED

Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be
free from defects in workmanship and materials, under normal use and service, for the
applicable warranty term. All SMC products carry a standard 90-day limited warranty from
the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion,
repair or replace any product not operating as warranted with a similar or functionally
equivalent product, during the applicable warranty term. SMC will endeavor to repair or
replace any product returned under warranty within 30 days of receipt of the product.

The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering
new products within 30 days of purchase from SMC or its Authorized Reseller. Registration
can be accomplished via the enclosed product registration card or online via the SMC web
site. Failure to register will not affect the standard limited warranty. The Limited Lifetime
warranty covers a product during the Life of that Product, which is defined as the period of
time during which the product is an “Active” SMC product. A product is considered to be
“Active” while it is listed on the current SMC price list. As new technologies emerge, older
technologies become obsolete and SMC will, at its discretion, replace an older product in its
product line with one that incorporates these newer technologies. At that point, the obsolete
product is discontinued and is no longer an “Active” SMC product. A list of discontinued
products with their respective dates of discontinuance can be found at:
http://www.smc.com/index.cfm?action=customer_service_warranty.

All products that are replaced become the property of SMC. Replacement products may be
either new or reconditioned. Any replaced or repaired product carries either a 30-day limited
warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible
for any custom software or firmware, configuration information, or memory data of
Customer contained in, stored on, or integrated with any products returned to SMC pursuant
to any warranty. Products returned to SMC should have any customer-installed accessory or
add-on components, such as expansion modules, removed prior to returning the product for
replacement. SMC is not responsible for these items if they are returned with the product.

Customers must contact SMC for a Return Material Authorization number prior to returning
any product to SMC. Proof of purchase may be required. Any product returned to SMC
without a valid Return Material Authorization (RMA) number clearly marked on the outside
of the package will be returned to customer at customer’s expense. For warranty claims within
North America, please call our toll-free customer support number at [phone].
Customers are responsible for all shipping charges from their facility to SMC. SMC is
responsible for return shipping charges from SMC to customer.

W

ARRANTY

i

L

IMITED WARRANTY

WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS
WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR
REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE
FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN
LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED,
EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE,
INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR
AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER
LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION,
MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE
UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE
ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY
CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER
INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR
ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY
ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.

LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT
OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR
INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE
DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR
OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE
SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR
INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED
RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES
OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS
MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS
WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.

* SMC will provide warranty service for one year following discontinuance from the active
SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans,
and cables are covered by a standard one-year warranty from date of purchase.

SMC Networks, Inc.

38 Tesla

Irvine, CA 92618

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OMPLIANCES

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) cable for RJ-45 connections—Category 3 or greater
for 10 Mbps connections, Category 5 or greater for 100 Mbps connections and Category 5, 5e
or 6 for 1000 Mbps connections. Use 50/125 or 62.5/125 micron multimode fiber optic cable,
or 9/125 micron single-mode cable, for SFP transceiver connections.

War ni ngs : 1. Wear an anti-static wrist strap or take other suitable measures to prevent elec-

trostatic discharge when handling this equipment.

2. When connecting this switch 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.

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.

Japan VCCI Class A

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CE Mark Declaration of Conformance for EMI and Safety
(EEC)

SMC contact for these products in Europe is:

SMC Networks Europe,
Edificio Conata II,
Calle Fructuós Gelabert 6-8, 2
08970 - Sant Joan Despí, Barcelona, Spain.

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:

o

, 4a,

RFI Emission:

Immunity:

LVD:

War ni ng:

Attention: Les raccordeurs ne sont pas utilisés pour le système téléphonique!

• Limit class A according to EN 55022:1998

• Limit class A for harmonic current emission according to EN 61000-3-2/
1995

• Limitation of voltage fluctuation and flicker in low-voltage supply system
according to EN 61000-3-3/1995

• 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 61000-4-5:1995
(AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)

• Immunity to conducted disturbances, 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%
Reduction @500 ms, >95% Reduction @5000 ms)

• EN60950:2000

Do not plug a phone jack connector in the RJ-45 port. This may damage this device.

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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, never look directly at the fiber TX port and
fiber cable 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:

WA RN I NG

• The unit must be connected to an earthed (grounded) outlet to comply with international

• Do not connect the unit to an A.C. outlet (power supply) without an earth (ground)

• The appliance coupler (the connector to the unit and not the wall plug) must have a

• The socket outlet must be near to the unit and easily accessible. You can only remove power

• This unit operates under SELV (Safety Extra Low Voltage) conditions according to

:

Installation and removal of the unit must be carried out by qualified personnel only.

safety standards.

connection.

configuration for mating with an EN 60320/IEC 320 appliance inlet.

from the unit by disconnecting the power cord from the outlet.

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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Important!

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.

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 fitted

Europe The supply plug must comply with CEE7/7 (“SCHUKO”).

Before making connections, make sure you have the correct cord set. Check it (read the

The minimum specifications for the 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 current 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.

DK2-1a or DK2-5a.

with a 5 A fuse which complies with BS1362.

The mains cord must be <HAR> or <BASEC> marked and be of
type HO3VVF3GO.75 (minimum).

The mains cord must be <HAR> or <BASEC> 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:

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
configuration qui permet un branchement sur une entrée d’appareil EN 60320/IEC

• 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.

L’installation et la dépose de ce groupe doivent être confiés à un personnel

vi

une

320.

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OMPLIANCES

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 - Il doit être agréé dans le pays d’utilisation

Etats-Unis et
Canada:

Danemark: La prise mâle d’alimentation doit respecter la section 107-2 D1 de la

Suisse: La prise mâle d’alimentation doit respecter la norme SEV/ASE 1011.

Europe La prise secteur doit être conforme aux normes CEE 7/7

Le cordon doit avoir reçu l’homologation des UL et un certificat de la
CSA.

Les spécifications minimales pour un cable flexible sont AWG No. 18,
ouAWG No. 16 pour un cable de longueur inférieure

- 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 masse) et respecter la configuration NEMA 5-15P (15 A,
125 V) ou NEMA 6-15P (15 A, 250 V).

norme DK2 1a ou DK2 5a.

(“SCHUKO”)
LE cordon secteur doit porter la mention <HAR> ou <BASEC> et

doit être de type HO3VVF3GO.75 (minimum).

à

2 métres.

Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicher­heitsanweisungen durchlesen:

WARNUNG:

• 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.

Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.

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OMPLIANCES

Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden:

Schweiz Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen

Europe Das Netzkabel muß vom Typ HO3VVF3GO.75

einhalten.

(Mindestanforderung) sein und die Aufschrift <HAR> 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 are

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.

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.

Warnin gs (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 Masseanschluß

Achtung: Dieses Gerät nutzt Laser zur Signalübertragung über Glasfasern. Die Laser

Servicepersonal durchgeführt werden.

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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OMPLIANCES

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 switch, including its physical and
performance-related characteristics, and how to install the switch.

Audience

The guide is intended for use by network administrators who are responsible for installing and
setting up network equipment; consequently, it assumes a basic working knowledge of LANs
(Local Area Networks).

Diese Anleitung ist f
Installation und das einstellen von Netzwerkkomponenten verantwortlich sind; sie setzt
Erfahrung bei der Arbeit mit LANs (Local Area Networks) voraus.

ür die Benutzung durch Netzwerkadministratoren vorgesehen, die für die

Related Publications

The following publication gives specific information on how to operate and use the management
functions of the switch:

The SMC6248M 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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ABLE OF

C

ONTENTS

1 About the TigerStack 10/100 . . . . . . . . . . . . . . . . . . . . . 1-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Switch Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Network Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

10BASE-T/100BASE-TX Ports . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1000BASE-T/SFP Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Stacking Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Port and System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Power Supply Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Expandability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

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

Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

3 Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Selecting a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Ethernet Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Equipment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Optional Rack-Mounting Equipment . . . . . . . . . . . . . . . . . . . . . 3-3

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Desktop or Shelf Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

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ABLE OF CONTENTS

Installing an Optional SFP Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Connecting Switches in a Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Stacking Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Connecting to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Connecting to the Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

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 . . . . . . . . . . . . 4-2

Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Fiber Optic SFP Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Connectivity Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

1000BASE-T Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . 4-6

1000 Mbps Gigabit Ethernet Collision Domain . . . . . . . . . . . . . 4-6

100 Mbps Fast Ethernet Collision Domain . . . . . . . . . . . . . . . . 4-7

10 Mbps Ethernet Collision Domain . . . . . . . . . . . . . . . . . . . . . 4-7

Cable Labeling and Connection Records . . . . . . . . . . . . . . . . . . . . . . . . 4-8

xii

T

ABLE OF CONTENTS

APPENDICES:

A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Diagnosing Switch Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Diagnosing Power Problems with the LEDs . . . . . . . . . . . . . . . A-2

Power and Cooling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

In-Band Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Stack Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

B Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

Twisted-Pair Cable and Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . B-1

10BASE-T/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . B-2

Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

1000BASE-T Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . B-5

Cable Testing for Existing Category 5 Cable . . . . . . . . . . . . . . . B-5

Fiber Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

C Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Physical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Switch Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Management Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Compliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

D Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Glossary

Index

xiii

T

ABLES

Table 1-1 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Table 1-2 System Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Table 3-1 Serial Cable Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length . . 4-6
Table 4-2 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths 4-6
Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length 4-7

Table 4-5 Maximum Fast Ethernet Cable Length . . . . . . . . . . . . . . . . 4-7

Table 4-6 Maximum Ethernet Cable Length . . . . . . . . . . . . . . . . . . . . 4-7

Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length 4-7

Table A-1 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Table A-2 Power/RPU LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2

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-5

Table D-1 TigerStack 10/100 Products and Accessories . . . . . . . . . . .D-1

xiv

F

IGURES

Figure 1-1 Front and Rear Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Figure 1-2 Stacking Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Figure 1-3 Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Figure 1-4 System LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Figure 1-5 Power Supply Receptacles . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Figure 2-1 Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 2-2 Network Aggregation Plan . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Figure 2-3 Remote Connections with Fiber Cable . . . . . . . . . . . . . . 2-4

Figure 2-4 Making VLAN Connections . . . . . . . . . . . . . . . . . . . . . . . 2-5

Figure 3-1 RJ-45 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 3-2 Attaching the Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-3 Installing the Switch in a Rack . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-4 Attaching the Adhesive Feet . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-5 Installing an SFP Transceiver into a Slot . . . . . . . . . . . . . 3-8

Figure 3-6 Connecting Switches in a Ring-topology Stack . . . . . . . 3-10

Figure 3-7 Power Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Figure 3-8 Serial Port (DB-9 DTE) Pin-Out . . . . . . . . . . . . . . . . . . 3-13

Figure 4-1 Making Twisted-Pair Connections . . . . . . . . . . . . . . . . . . 4-2

Figure 4-2 Network Wiring Connections . . . . . . . . . . . . . . . . . . . . . . 4-3

Figure 4-3 Making Fiber Port Connections . . . . . . . . . . . . . . . . . . . . 4-5

Figure B-1 RJ-45 Connector Pin Numbers . . . . . . . . . . . . . . . . . . . . B-1

Figure B-2 Straight-through Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Figure B-3 Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4

xv

F

IGURES

xvi

C

HAPTER

A

BOUT THE

T

IGERSTACK

10/100

Overview

SMC’s TigerStack SMC6248M is a stackable Fast Ethernet switch with
48

10BASE-T/100BASE-TX ports and two 1000BASE-T ports1 that
operate in combination with two Small Form Factor Pluggable (SFP)
transceiver slots (see Figure 1-1, Ports 49-50). The switch also provides

Gbps built-in stacking ports for connecting up to four units in a

two 1
stack. The stacking ports can also be used as normal Ethernet ports in
standalone mode.

The switch includes an SNMP-based management agent embedded on the
main board, which supports both in-band and out-of-band access for
managing the switch stack.

1

The switch provides a broad range of powerful features for Layer 2
switching, delivering reliability and consistent performance for your
network traffic. It brings order to poorly performing networks by
segregating them into separate broadcast domains with IEEE 802.1Q
compliant VLANs, and empowers multimedia applications with multicast
switching and CoS services.

1. If an SFP transceiver is plugged in, the corresponding RJ-45 port is disabled for ports 49-50.

1-1

A

BOUT THE TIGERSTACK

10/100

System Indicators

42 43 44 45

48

46 47

51/Down

40 41

1000BASE-T/SFP Ports

DC
12V4.5A

2

Power Socket

2

4

3

1

Console Port

Port Status Indicators

7

5

11

13

16 17

13

16 17

12

14 15

8910

6

14 15

18 19 20 21

18 19 20 21

24

24

26

28

27

25

22 23

22 23

31

29

30

Stacking Ports

35

36

323334

37

38 39

10/100 Mbps RJ-45 Ports

Console

Redundant Power Socket

Figure 1-1 Front and Rear Panels

Switch Architecture

The SMC6248M switch employs a wire-speed, non-blocking switching fabric.
This permits simultaneous wire-speed transport of multiple packets at low
latency on all ports. The switch also features full-duplex capability on all

ports, which effectively doubles the bandwidth of each connection.

The switch uses store-and-forward switching to ensure maximum data
integrity. With store-and-forward switching, the entire packet must be
received into a buffer and checked for validity before being forwarded. This
prevents errors from being propagated throughout the network.

Slave

Stack

Master

UplinkUplink

49 50

RPU

49

PWR

52/Up

Diag

50

51

RPU

Stack

52

Master

2

The switch includes built-in stacking ports that enable up to four units to be
connected together through a 4

Gbps stack backplane. The switch stack can

be managed from a master unit using a single IP address.

2. An RPU is not yet available for this product.

1-2

D

ESCRIPTION OF HARDWARE

Network Management Options

The SMC6248M switch contains a comprehensive array of LEDs for
“at-a-glance” monitoring of network and port status. It also includes a
management agent that allows you to configure or monitor the switch using
its embedded management software, or via SNMP applications. To manage
the switch, you can make a direct connection to the RS-232 console port
(out-of-band), or you can manage it through a network connection (in-band)
using Telnet, the on-board Web agent, or SNMP-based network
management software.

For a detailed description of the advanced features, refer to the Management
Guide.

Description of Hardware

10BASE-T/100BASE-TX Ports

The SMC6248M contains 48 10BASE-T/100BASE-TX RJ-45 ports that
operate at 10 Mbps or 100 Mbps, half or full duplex,. Because all RJ-45 ports
on this switch support automatic MDI/MDI-X operation, you can use
straight-through cables for all network connections to PCs or servers, or to
other switches or hubs. (See

“1000BASE-T Pin Assignments” on page B-5.)

Each of these ports support auto-negotiation, so the optimum 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
auto-negotiation, the communication mode of that port can be configured
manually.

Each port also supports IEEE 802.3x auto-negotiation of flow control, so
the switch can automatically prevent port buffers from becoming saturated.

1-3

A

Slave

Stack

Master

UplinkUplink

PWR

Diag

RPU

Stack
Master

51/Down

52/Up

49 50

47

48

49

50

51

52

BOUT THE TIGERSTACK

10/100

1000BASE-T/SFP Ports

The SMC6248M contains two combination Gigabit RJ-45 ports that are
shared with Small Form Factor Pluggable (SFP) transceiver slots (Ports

Figure 1-1 on page 1-2). If an SFP transceiver (purchased separately)

49-50,
is installed in a slot, the associated RJ-45 port is disabled. The switch can be
configured to force the use of an RJ-45 port or SFP slot, as required.

The 1000BASE-T RJ-45 ports support automatic MDI/MDI-X operation,
so you can use straight-through cables for all network connections to PCs or
servers, or to other switches or hubs. (See

“1000BASE-T Pin Assignments”

on page B-5.)

Stacking Ports

The unit provides two stacking ports that provide a 4 Gbps stack backplane
connection. Up to four switches can be connected together using Category 5
Ethernet cables (purchased separately). The Master button enables one
switch in the stack to be selected as the master. This is the unit through
which you manage the entire stack.

The stacking ports can also be used as normal Ethernet ports in standalone
mode by pressing the Uplink button.

Master Button

Stacking Ports

Uplink Button

Figure 1-2 Stacking Ports

1-4

D

ESCRIPTION OF HARDWARE

Port and System Status LEDs

The SMC6248M includes a display panel for key system and port indications
that simplify installation and network troubleshooting. The LEDs, which are
located on the front panel for easy viewing, are shown below and described
in the following tables.

Port Status LEDs

4

5

3

1

2

6

Figure 1-3 Port LEDs

Table 1-1 Port Status LEDs

LED Condition Status

Fast Ethernet Ports (Ports 1-48)

9

8

7

11 12

10

(Link/
Activity)

On/Flashing
Amber

On/Flashing
Green

Port has established a valid 10 Mbps network
connection. Flashing indicates activity.

Port has established a valid 100 Mbps network
connection. Flashing indicates activity.

Off There is no valid link on the port.

Flashing
Green

When the “light unit” command is entered in the
Command Line Interface, the LED
corresponding to the switch’s ID will flash for
about 15 seconds.

1-5

A

PWR

Diag

RPU

Stack
Master

52/Up

50

49

50

51

52

BOUT THE TIGERSTACK

LED Condition Status

Gigabit Ethernet Ports
(Ports 49-50, and Ports 51-52 when stacking is not implemented)

10/100

Table 1-1 Port Status LEDs

(Link/
Activity)

On/Flashing
Amber

On/Flashing
Green

Port has established a valid 10/100 Mbps network
connection. Flashing indicates activity.

Port has established a valid 1000 Mbps network
connection. Flashing indicates activity.

Off There is no valid link on the port.

System LEDs

Figure 1-4 System LEDs

1-6