3COM DUA 1648-5AAA02, 2816-SFP Plus User Manual
3Com® Baseline Switch 2816-SFP Plus (3C16485)
User Guide
DUA1648-5AAA02
1
4
9
5
12
13
8
16
M
odule Present
Base
line
S
w
i
t
c
h
2
8
Link/A
ctivity
Flash = A
: G
re
e
n = 1000M
ctivity
, D
uplex : O
, Y
ellow
= 1
n
= Fu
0/1
ll, O
00
M
ff =
,
H
alf
1
6-SFP
3C16485
Copyright © 3Com Technologies, 2004. All rights reserved. No part of this documentation
may be reproduced in any form or by any means or used to make any derivative work (such
as translation, transformation, or adaptation) without written permission from 3Com
Technologies.
3Com T echnologies reserves the right to revise this documentation and to make changes in
content from time to time without obligation on the part of 3Com Technologies to provide
notification of such revision or change.
3Com T echnologies pr ovides this documentation wi thout warranty of any kind, either implied
or expressed, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose. 3Com may make improvements or changes i n the pr o duct (s )
and/or the program(s) described in this documentation at any time.
UNITED STATES GOVERNMENT LEGENDS:
If you are a United States government agency, then this documentation and the software
described herein are provided to you subject to the following restricted rights:
For units of the Department of Defense:
Restricted Rights Legend: Use, duplication or disclosure by the Government is subject to
restrictions as set forth in subparagraph (c) (1) (ii) for restricted Rights in Technical Data
and Computer Software clause at 48 C.F.R. 52.227-7013. 3Com Centre, Boundary Way,
Maylands Park South, Hemel Hempstead, Herts, HP2 7YU, U.K.
For civilian agencies:
Restricted Rights Legend: Use, reproduction or disclosure is subject to restrictions set forth
in subparagraph (a) through (d) of the Commercial Computer Software - Restricted Rights
Clause at 48 C.F.R. 52.227-19 and the limitations set forth in 3Com Corporation’s standard
commercial agreement for the software. Unpublished rights reserved under the copyright
laws of the United States.
If there is any software on removable media described in this documentation, it is
furnished under a license agreement included with the product as a separate document, in
the hard copy documentation, or on the removable media in a directory file named
LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be
provided to you.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States
and may or may not be registered in other countries.
3Com, the 3Com logo and SuperStack are registered trademarks of 3Com Corporation.
Other brand and product names may be registered trademarks or trademarks of their
respective holders.
Environmental Statement
It is the policy of 3Com Corporation to be environmentally-friendly in all operations.
To uphold our policy, we are committed to:
■ Establishing environmental performance standards that comply with national legislation
and regulations.
■ Conserving energy, materials and natural resources in all operations.
■ Reducing the waste generated by all operations.
■ Ensuring that all waste conforms to recognised environmental standards.
■ Maximising the recyclable and reusable content of all products.
■ Ensuring that all products can be recycled, reused and disposed of safely.
■ Ensuring that all products are labelled according to recognised environmental standards.
■ Improving our environmental record on a continual basis.
Contents
About this Guide
Naming Convention 5
Conventions 5
Feedback about this User Guide 6
Product Registration 6
Introduction
Baseline Switch 2816-SFP Plus 7
Package Contents 8
How to Use the Baseline Switch 2816-SFP Plus
Front and Rear Panels 9
Front Panel Features 9
Rear Panel Features 11
Installation Recommendations
Positioning the Switch 13
Rack Mounting or Free Standing 13
Power Supply 13
Power Up 13
Spot Checks 14
Connecting to a Network Device 14
SFP Operation 14
Approved SFP Transceivers 14
Inserting an SFP Transceiver 14
Removing an SFP Transceiver 15
Mounting Kit Instructions
Introduction 17
Rack Mounting the Units 17
Automatic IP Configuration
How Your Switch Obtains IP Information 19
How Automatic IP Configuration Works 19
Automatic Process 19
Switch Configuration
Navigating Through the Switch Configuration Pages 21
Main Menu 21
Option Tabs 21
Fan Status 22
Summary Screen 22
Password 23
IP Settings 23
Port Configuration 24
VLANs 25
VLAN Configuration Examples 26
Create VLANs 28
Delete VLANs 28
Modify VLANs 29
3
Membership VLANs 29
Trunking 30
Traffic Monitoring 32
System Tools 32
Restart 32
Configuration 33
Upgrade 33
Spanning Tree 35
802.1p Prioritization 36
Support 37
Using Discovery
Running the Discovery Application 39
Windows Installation (95/98/XP/2000/2003 Server/NT) 39
Problem Solving
Safety Information
L'INFORMATION DE SÉCURITÉ IMPORTANTE
WICHTIGE SICHERHEITSINFORMATIONEN
Technical Information
Related Standards 49
Environmental 49
Physical 49
Electrical 49
Technical Support
Where To Go For Help 51
Register Your Product to Gain Service Benefits 51
Purchase Value-Added Services 51
Troubleshoot Online 51
Purchase Value-Added Services 51
Contact Us 51
Telephone Technical Support and Repair 52
Glossary
Index
Regulatory Notices
4
ABOUT THIS GUIDE
This guide is intended for use by those responsible for installing
and setting up network equipment; consequently, it assumes a
basic working knowledge of LANs (Local Area Networks).
If a release note is shipped with this 3Com Baseline Switch
2816-SFP Plus and contains information that differs from the
information in this guide, follow the information in the release
note.
Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) on the 3Com World
Wide Web site:
http://www.3com.com
Naming Convention
Throughout this guide, the 3Com Baseline Switch 2816-SFP Plus
is referred to as the Switch.
Category 3 and Category 5 Twisted Pair Cables are referred to as
Twisted Pair Cables throughout this guide.
Conventions
Table 1 and Table 2 list conventions that are used throughout this
guide.
Ta b le 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important
Caution Information that alerts you to potential
Warning Information that alerts you to potential
Ta b le 2 Text Conventions
Convention Description
The words “enter”
and “type”
Keyboard key
names
When you see the word “enter” in this guide, you
must type something, and then press Return or Enter.
Do not press Return or Enter when an instruction
simply says “type. ”
If you must press two or more keys simultaneously,
the key names are linked with a plus sign (+).
Example:
Press Ctrl+Alt+Del
features or instructions
loss of data or potential damage to an
application, system, or device
personal injury
5
Ta b l e 2 Text Conventions (continued)
Convention Description
Words in italics Italics are used to:
■ Emphasize a point.
■ Denote a new term at the place where it is defined
in the text.
■ Identify menu names, menu commands, and soft-
ware button names. Examples:
From the Help menu, select Contents.
Click OK.
Feedback about this User Guide
Your suggestions are very important to us. They will help make
our documentation more useful to you. Please e-mail comments
about this document to 3Com at:
pddtechpubs_comments@3com.com
Please include the following information when commenting:
■ Document title
■ Document part number (on t he title page)
■ Page number (if appropriate)
Example:
■ 3Com Baseline Switch 2816-SFP Plus User Guide
■ Part Number DUA1648-5AAA0x
■ Page 24
Do not use this e-mail address for technical support questions.
For information about contacting Technical Support, please refer
to “Support” on page 37.
The Switch is part of the extensive Baseline range of 3Com products. This range includes hubs, switches, power systems and
other networking equipment, and is continually being developed. Contact your supplier for the latest product information
and to order these products.
Product Registration
You can now register your Baseline Switch on the 3Com web site
to receive up-to-date information on your product:
http://esupport.3com.com
6
INTRODUCTION
The 3Com® Baseline Switch 2816-SFP Plus is a versatile,
easy-to-use configurable Switch. It is ideal for users who want
the high-speed performance of 10/100/1000 switching with the
added functionality of Gigabit links, but do not need
sophisticated management capabilities. The Switch is shipped
ready for use. No configuration is necessary.
Baseline Switch 2816-SFP Plus
The Switch has 16 shielded RJ-45, 10/100/1000 Mbps
auto-negotiating ports and four Small Form Factor Pluggable
(SFP) transceiver slots on the front panel for easy, flexible
connection to fiber-based Gigabit media. Each 10/100/1000
Mbps port automatically determines the speed and duplex mode
of the connected equipment and provides a suitable switched
connection. The four SFP ports support fiber Gigabit Ethernet
short-wave (SX) and long-wave (LX) SFP transceivers in any
combination. This offers you the flexibility of using SFP
transceivers to provide connectivity between the Switch and a
1000 Mbps core network.
The Switch is suitable for office use where it can be
free-standing, or rack mounted (in a wiring closet or equipment
room).
Figure 1 Network Plan
Baseline 10/100 Switch
Baseline 10/100 Switch
1000 Mbps link
10 Mbps or 100 Mbps link
Endstations on switched
100 Mbps connections
Endstations on switched
100 Mbps connections
Baseline Switch 2250Baseline Switch 2816-SFP Plus
1000 Mbps copper or Fiber
connection to backbone
or server/worksation
Endstations on
switched 100 Mbps or 1000 Mbps
connections
7
Package Contents
The Switch comes with:
■ One power cord
■ Four standard height, self-adhesive rubber pads
■ One mounting kit
■ Installation CD
■ This User Guide
■ Warranty flyer
The Switch is powered from the AC supply.
8
HOW TO USE THE BASELINE SWITCH 2816-SFP PLUS
AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés
Front and Rear Panels
The front panel of the Switch contains a series of indicator lights
(LEDs) that help describe the state of various networking and
connection operations.
The numbers in this diagram refer to numbered sections in
“Front Panel Features” on page9, and “Rear Panel Features” on
page 11.
Figure 2 Front and Rear Panels
1
1
9
8
5
4
13
12
8
16
Module Present
Link/Activity : Green = 1000M, Yellow = 10/1000M,
Flash = Activity, Duplex : On = Full, Off = Half
4
2
BaselineSwitch 2816-SFP Plus
5
3
6
9
Front Panel Features
1 RJ-45 10/100/1000 Ports
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets.
They cannot be used as standard traditional telephone sockets,
or to connect the unit to a traditional PBX or public telephone
network. Only connect RJ-45 data connectors, network telephony
systems, or network telephones to these sockets.
Either shielded or unshielded data cables with shielded or
unshielded jacks can be connected to these data sockets.
3C16485
7
9
par des prises de données. Ils ne peuvent pas être utilisés comme
prises de téléphone conventionnelles standard, ni pour la
connection de l’unité à un réseau téléphonique central privé ou
public. Raccorder seulement connecteurs de données RJ-45,
systèmes de réseaux de téléphonie ou téléphones de réseaux à
ces prises.
Il est possible de raccorder des câbles protégés ou non protégés
avec des jacks protégés ou non protégés à ces prises de données.
WARNHINWEIS: RJ-45-Porte. Diese Porte sind geschützte
Datensteckdosen. Sie dürfen weder wie normale traditionelle
Telefonsteckdosen noch für die Verbindung der Einheit mit einem
traditionellem privatem oder öffentlichem Telefonnetzwerk
gebraucht werden. Nur RJ-45-Datenanscluße, Telefonnetzsysteme
or Netztelefone an diese St eckdosen anschließen .
Entweder geschützte oder ungeschützte Buchsen dürfen an diese
Datensteckdosen angeschlossen werden.
The Switch has 16 10/100/1000 Mbps auto-negotiating ports.
Each port supports automatic MDI/MDI-X detection and can be
connected to either a 10BASE-T, 100BASE-TX, or a 1000BASE-T
device.
Ports 1 to 16 are auto-negotiating: their speed and duplex mode
(half duplex or full duplex for 10BASE-T and 100BASE-TX, full
duplex only for 1000BASE-T) are automatically determined by the
capabilities of the connected device.
CAUTION: The Switch supports full duplex auto-negotiation. If
auto-negotiation is disabled for 1000BASE-T, then the Switch
uses the forced-mode default of 100 full duplex mode. If the
connected device does not support auto-negotiation, the Switch
will operate in half duplex mode (even if the attached device is
operating in full duplex mode). In such a configuration, you may
notice some degradation of network performance. 3Com
recommends that you use devices that are capable of
auto-negotiation (and that you ensure that auto-negotiation is
enabled, if it is a configurable option).
2 SFP Ports
The Small Form Factor Pluggable (SFP) ports are numbered 13 to
16. If an SFP transceiver (purchased separately) is installed in a
slot and is active, the associated RJ-45 port of the same number
is disabled.
The four SFP ports support fiber Gigabit Ethernet short-wave (SX)
and long-wave (LX) SFP transceivers in any combination. This
offers you the flexibility of using SFP transceivers to provide
connectivity between the Switch and remote 1000 Mbps
workgroups or to create a high-capacity aggregated link
backbone connection.
SFP ports are numbered 13-16 on the Switch. When an SFP port
is active it has priority over the 10/100/1000 port of the same
number. The corresponding 10/100/1000 port is disabled when
an SFP transceiver is plugged in.
3 Link/Activity Status LEDs
The following table lists LEDs visible on the front of the Switch,
and how to read their status according to color.
Status Meaning
Green The link is operating at 1000 Mbps.
Yellow The link is operating at 10 or 100 Mbps.
Flashing
Green
Flashing
Yellow
Flashing
Ye llow to
Green
Off The link has not been establis hed, ei ther no thing is connect ed
Packets are being received or transmitted on the por t at 1000
Mbps.
Packets are being received or trans mitted on the port at 10 or
100 Mbps.
Port disabled or link loopba ck error.
to the port, or there is a problem:
■ Check that the attached device is powered on.
■ Check that the cable or fiber is the correct type and is not
faulty.
■ For fiber connections, en sure that the re ceive (RX) and
transmit (TX) cable connectors are not swapped.
If these checks do not identi fy the cause of the problem, it
may be that the unit or the devic e connected to t he port is
faulty. Contact your supplier for further advice.
10
4 Module Active LEDs
The Module Active LEDs shows the status of any SFP modules
that are installed.
Status Meaning
Green Fiber SFP is inserted in the slot.
Off No fiber SFP is inserted in the slot.
5 Port Duplex LEDs
The second and fourth (bottom) row of Status LEDs, which are
colored yellow, show the duplex status of the related ports.
Status Meaning
Off No link, not yet negotiated or the p ort is operating in
Yellow The port is operating in full-d uplex mode.
half-duplex mode.
Status Meaning
Flashing
Green
Yellow ■ Power-on self test or loopback test failed. Switch is in fail-
■ Power-on self test is in progress.
safe mode.
7 Self-adhesive Pads
The unit is supplied with four self-adhesive rubber pads.
Do not apply the pads if you intend to rack mount the unit.
If the unit is to be part of a free-standing stack, apply the pads
to each marked corner area on the underside of the unit. Place
the unit on top of the lower unit, ensuring that the pads locate
with the recesses of the lower unit.
Rear Panel Features
8 Power Supply
6 Power LED
The Power LED shows the power status of the Switch:
Status Meaning
Green The unit is powered on and ready for use.
Off ■ The unit is not receiving power:
■ Check that the power cord is connected correctly.
■ If the unit still does not operate, contact your supplier.
The Switch automatically adjusts to the supply voltage. Only use
the power cord that is supplied with the unit.
9 Recovery button
The recovery button reinitializes the Switch . This returns the
Switch to the factory default settings if, for example, you have
forgotten the default IP address, or forgotten your user name or
password.
11
CAUTION: 3Com recommends that you back up your
configuration settings before you recover the Switch, otherwise
your configuration will be lost. Refer to “Configuration” on
page 33 for details.
12
INSTALLATION RECOMMENDATIONS
Positioning the Switch
When deciding where to position the Switch ensure that:
■ It is accessible and cables can be connected easily.
■ Cabling is away from sources of electrical noise. These include
lift shafts, microwave ovens, and air conditioning units.
Electromagnetic fields can interfere with the signals on copper
cabling and introduce errors, therefore slowing down your
network.
■ Water or moisture cannot enter the case of the unit.
■ Air flow around the unit and through the vents in the side of
the case is not restricted (3Com recommends that you provide
a minimum of 25 mm (1 in.) clearance).
■ The air is as free from dust as possible.
■ Temperature operating limits are not likely to be exceeded. It
is recommended that the un it is installed in a clean , air
conditioned environment.
It is always good practice to wear an anti-static wrist strap when
installing network equipment, connected to a ground point. If
one is not available, try to keep in contact with a grounded rack
and avoid touching the unit's ports and connectors, if possible.
Static discharge can cause reliability problems in your equipment.
Rack Mounting or Free Standing
The unit can be mounted in a 19-inch equipment rack using the
Mounting Kit, (refer to “Mounting Kit Instructions” on page 17),
or it can be free standing. Do not place objects on top of the
unit or stack.
13
CAUTION: I f installing the Switch in a free-stan ding stack of
different size Baseline or Superstack 3 units, the smaller units
must be installed above the larger ones. Do not have a
free-standing stack of more than six units.
Power Supply
Power problems can be the cause of serious failures and
downtime in your network. Ensure that the power input to your
system is clean and free from sags and surges to avoid
unforeseen network outages. We recomme nd that you install
power conditioning, especially in areas prone to black outs,
power dips and electrical storms.
The unit is intended to be grounded. Ensure it is connected to
earth ground during normal use. Installing proper grounding
helps to avoid damage from lightning and power surges.
Power Up
Use the following sequence to power up the Switch:
1 Check the network connections and cables.
2 Connect the power supply cable to the appropriate power socket
on the rear panel of the unit; refer to “Power Supply” on
page 11.
3 Connect the plug to the power supply outlet socket and switch
on the power supply at the socket.
When the Switch is powered on, the Power LED should light up.
If it is not, refer to “Power LED” on page 11.
Spot Checks
At frequent intervals you should visually check the Switch.
Regular checks can give you an early warning of a possible
failure; any problems can then be attended to when there will be
least effect on users. Check the following:
Cabling Check that all external cabling connec tions are secure
Cooling fan Where possibl e, check that t he cooling fan is operating
If you experience any problems operating the Switch, refer to
“Problem Solving” on page 41.
and that no cables are pulled taut.
by listening to the unit. The fan is fitted ne ar to the
front right hand side of the unit (when viewe d from the
front).
SFP transceivers are hot-insertable and hot-swappable. You can
remove them from and insert them into any SFP port without
having to power down the Switch.
Approved SFP Transceivers
The following list of approved SFP transceivers is correct at the
time of publication:
■ 3CSFP91 SFP (SX)
■ 3CSFP92 SFP (LX)
To access the latest list of approved SFP transceivers for the
Switch on the 3Com Corporation World Wide Web site, enter
this URL into your internet browser:
http://www.3com.com
Connecting to a Network Device
To connect a device to the Switch use Category 5 unshielded or
shielded (screened) 100 Ohm TP cable (or Category 3 cable for a
10 Mbps connection). The maximum length of cable for each
connection is 100 m (328 ft). Connect one end of the cable to
an RJ-45 port on the Switch and the other end to the
appropriate RJ-45 port on the connecting device.
3Com recommends the use of Category 5e or 6 cables for
1000BASE-T operation.
SFP Operation
The following sections describe how to insert an SFP transceiver
into an SFP slot.
Inserting an SFP Transceiver
To be recognised as valid, the SFP transceiver must have the
following characteristics:
■ 1000BASE-SX or 1000BASE-LX media type:
■ 1000BASE-SX SFP transceiver
Use this transceiver to connect the Switch directly to a
multimode fiber-optic cable.
■ 1000BASE-LX SFP transceiver
Use this transceiver to connect the Switch directly to a
single-mode fiber-optic cable or to multimode fiber using
a conditioned launch cable.
If the SFP transceiver is faulty, it will not operate within the
Switch. See “Problem Solving” on page41.
14
Use of non-3Com SFPs is not recommended. If the SFP
transceiver is invalid it will not be recognised by the Switch.
7 Check the Module Active LEDs on the front of the Switch to
ensure that it is operating correctly.
Use the following sequence of steps to activate the SFP ports:
1 Hold the transceiver so that the fiber connector is toward you
and the product label is visible, as shown in Figure 3
. Ensure the
wire release lever is closed (in the upright position).
2 Gently slide the transceiver into the SFP slot until it clicks into
place.
CAUTION: SFP transceivers are keyed and can be properly
inserted only one way. If the transceiver does not click when you
insert it, remove it, turn it over, and reinsert it.
3 Remove the plastic protective cover, if fitted.
4 Connect the fiber cable.
5 The transceiver connects to the network using a duplex LC
connector. Attach a male duplex LC connector on the network
cable into the duplex LC connector on the transceiver.
6 Connect the other end of the cable to a device fitted with an
appropriate Gigabit Ethernet connection.
Figure 3 Inserting an SFP Transceiver
Product
label
Wire release
lever
Module Present
Suitable slot
n host Switcho
Removing an SFP Transceiver
If you wish to remove the transceiver (it is not necessary to
power-down your Switch):
1 Disconnect the cable from the transceiver.
2 Move the wire release lever downwards until it is pointing
toward you.
3 Pull the wire release lever toward you to release the catch
mechanism; the transceiver will then easily slide out.
Link/Activity :
Flash = Act
15
16
MOUNTING KIT INSTRUCTIONS
Introduction
The Switch is supplied with two mounting brackets and four
screws. These are used for rack mounting the unit. When
mounting the unit, you should take note of the guidelines given
in “Positioning the Switch” on page 13.
Rack Mounting the Units
The Switch is 1U high and will fit in a standard 19-inch rack.
CAUTION: Disconnect all cables from the unit before continuing.
Remove the self-adhesive pads from the underside of unit, if
already fitted.
1 Place the unit the right way up on a hard, flat surface with the
front facing towards you.
2 Locate a mounting bracket over the mounting holes on one side
of the unit.
3 Insert the two screws supplied in the mounting kit and fully
tighten with a suitable screwdriver.
4 Repeat the two previous steps for the other side of the unit.
5 Insert the unit into the 19-inch rack and secure with suitable
screws (not provided).
6 Reconnect the cables.
Figure 4 Back Mounting the Units
Baseline Switch 2816-SFP Plus
17
18
AUTOMATIC IP CONFIGURATION
This chapter explains more about IP addresses and how
automatic IP configuration works on the Switch.
For details on how to view and amend your Switch’s IP settings,
refer to “IP Settings” on page 23.
How Your Switch Obtains IP Information
Your Switch can obtain IP information using one of the following
methods:
■ Automatic IP Configuration (default) — the Switch will
configure itself with its default IP address
169.254.x.y,where x and y are the last two bytes of the
Switch’s MAC address.
Refer to “Automatic Process” on page 19 for details on how
the Switch automatically obtains IP address information.
■ Static IP Configuration — you can manually input the IP
information (IP address, subnet mask, and default gateway).
Refer to “IP Settings” on page 23. If your computers are
configured with static addresses and you do not wish to
change this, then you should use the Discovery program on
the Switch CD-ROM to detect and configure your Switch.
For details on how to use Discovery to detect the Switch on the
network, refer to “Using Discovery” on page 39.
■ DHCP Addressing — DHCP addressing is a dynamic
mechanism which the Switch uses to obtain an IP address
lease from the DHCP server which is located on your network.
If you select DHCP addressing, you will only be able to find
out the IP address of the Switch by cross referencing the
Switch’s MAC address in the DHCP server’s lease list. Refer to
“IP Settings” on page 23.
3Com recommends that you do not use DHCP Addressing, unless
you have experience of configuring and managing a DHCP server.
How Automatic IP Configuration Works
When your Switch is powered up for the first time the IP
configuration setting is set to
setting.
If your Switch has been powered up before, whichever of the
three options for IP configuration (automatic, static
was last configured is activated when the Switch powers up
again.
Automatic Process
To detect its IP information using the automatic configuration
process, the Switch goes through the following sequence of
steps:
1 The Switch tries to configure itself with the default IP address
169.254.x.y,where x and y are converted from the last two
bytes of the Switch’s MAC address.
For example, if the MAC address is 08004E000102, the IP
address would be 169.254.1.2. This address is used if the
Switch is operating in a standalone mode, or no other Switches
on the network have thi s IP address.
2 If this default IP address is already in use on the network then
the Switch detects this, and increments the last byte of the MAC
address by one to generate its IP address. The IP address would
therefore become 169.254.1.3.
19
automatic — this is the default
or DHCP)
3 The Switch repeats step 2 until an unused IP address is found.
20
Loading...