KTI KGS-3120 User manual

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DOC.041230
KGS-3120
Operation Manual

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(C) 2002 KTI Networks Inc. All rights reserved. No part of this documentation may be reproduced in
any form or by any means or used to make any directive work (such as translation or transformation)
without permission from KTI Networks Inc.
KTI Networks Inc. reserves the right to revise this documentation and to make changes in content
from time to time without obligation on the part of KTI Networks Inc. to provide notification of such
revision or change.
For more information, contact:
United States KTI Networks Inc.
P.O. BOX 631008
Houston, Texas 77263-1008
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
URL: http://www.ktinet.com/
International Fax: [phone]
E-mail: [email protected]
URL: http://www.ktinet.com.tw/

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The information contained in this document is subject to change without prior notice. Copyright (C). All Rights Reserved.
TRADEMARKS
Ethernet is a registered trademark of Xerox Corp.
WARNING:
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and if not
installed and used in accordance with the instruction manual may cause harmful interference in which case the user will be
required to correct the interference at his own expense.
NOTICE:
(1) The changes or modifications not expressively approved by the party responsible for compliance could void the user's
authority to operate the equipment.
(2) Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits.
CISPR A COMPLIANCE:
This device complies with EMC directive of the European Community and meets or exceeds the following technical standard.
EN 55022 - Limits and Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment.
This device complies with CISPR Class A.
WARNING: This is a Class A product. In a domestic environment this product may cause radio interference in which case the
user may be required to take adequate measures.
CE NOTICE
Marking by the symbol indicates compliance of this equipment to the EMC directive of the European Community. Such
marking is indicative that this equipment meets or exceeds the following technical standards:
EN 55022: Limits and Methods of Measurement of Radio Interference characteristics of Information Technology Equipment.
EN 50082/1:Generic Immunity Standard -Part 1: Domestic Commercial and Light Industry.
EN 60555-2: Disturbances in supply systems caused by household appliances and similar electrical equipment - Part 2:
Harmonics.

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Table of Contents
About This Manual ........................................................................................................8
Intended Readers ........................................................................................................................................ 8
Typographical Conventions.......................................................................................................................... 8
Notes, Notices, and Cautions...................................................................................................................... 9
Safety Instructions ........................................................................................................................................ 9
Protecting Against Electrostatic Discharge ............................................................................................... 11
Section 1 Introduction................................................................................................12
Switch Description ..................................................................................................................................... 12
Features ..................................................................................................................................................... 12
Front-Panel Components .......................................................................................................................... 13
LED Indicators............................................................................................................................................ 14
Rear Panel Description.............................................................................................................................. 14
RPS Connector........................................................................................................................................... 14
Plug-in Modules ......................................................................................................................................... 15
KGM-340T : 4-Port 10/100/1000Mbps Expansion Module ........................................................................ 15
KGM-340F : 4-Port Gigabit SFP (Mini GBIC) Expansion Module ............................................................... 15
Management Options................................................................................................................................. 15
Section 2 Installation ..................................................................................................17
Package Contents...................................................................................................................................... 17
Before You Connect to the Network ........................................................................................................... 17
Section 3 Basic Switch Management .......................................................................25
Before You Start .......................................................................................................................................... 25
General Deployment Strategy .................................................................................................................... 25
VLANSetup................................................................................................................................................. 26
Defining Static Routes ............................................................................................................................... 26
Web-based User Interface ......................................................................................................................... 26
Areas of the User Interface......................................................................................................................... 26
Login to Web Manager ............................................................................................................................... 28
Web Pages and Folders ............................................................................................................................ 28
Basic Setup ................................................................................................................................................ 29
Switch Information...................................................................................................................................... 29
Switch IP Settings....................................................................................................................................... 30
Security IP Management Stations Configuration ....................................................................................... 32
User Account Management .......................................................................................33
Save Changes............................................................................................................................................ 34
Factory Reset.............................................................................................................................................. 35
Restart System ........................................................................................................................................... 36
Advanced Settings...................................................................................................................................... 37
Section 4 Basic Configuration...................................................................................39
Switch Information...................................................................................................................................... 40
IP Address .................................................................................................................................................. 40
Advanced Settings...................................................................................................................................... 43
Port Configuration ...................................................................................................................................... 45
Port Description.......................................................................................................................................... 46
Port Mirroring .............................................................................................................................................. 47
Traffic Control ............................................................................................................................................. 48
Link Aggregation ........................................................................................................................................ 49
LACP Port Settings ..................................................................................................................................... 51
Port Access Entity ....................................................................................................................................... 52
802.1X Authenticator Settings .................................................................................................................... 55
PAE System Control ................................................................................................................................... 57
RADIUSServer ........................................................................................................................................... 58
IGMP ........................................................................................................................................................... 59
IGMP Snooping........................................................................................................................................... 59
Static Router Ports ..................................................................................................................................... 61
Spanning Tree............................................................................................................................................ 62

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STP Switch Settings ................................................................................................................................... 64
STP Port Settings ....................................................................................................................................... 66
Forwarding & Filtering ................................................................................................................................ 68
Unicast Forwarding .................................................................................................................................... 68
Multicast Forwarding .................................................................................................................................. 69
VLANs ......................................................................................................................................................... 70
802.1Q Static VLANs .................................................................................................................................. 75
802.1Q Port Settings .................................................................................................................................. 78
QoS ............................................................................................................................................................. 79
802.1p Default Priority ................................................................................................................................ 80
802.1p User Priority.................................................................................................................................... 81
QoS Output Scheduling Configuration....................................................................................................... 82
Traffic Segmentation .................................................................................................................................. 83
Bandwidth Control...................................................................................................................................... 84
MAC Notification ......................................................................................................................................... 85
MAC Notification Port Settings ................................................................................................................... 86
System Log Server ..................................................................................................................................... 87
Port Security................................................................................................................................................ 89
SNTP Setting .............................................................................................................................................. 90
Time Setting ............................................................................................................................................... 90
Time Zone and DST Settings..................................................................................................................... 91
Access Profile Table................................................................................................................................... 93
Section 5 Layer 3 IP Networking .............................................................................105
L3 Global Advanced Settings ................................................................................................................... 106
IP Interface Settings ................................................................................................................................. 106
MD5 Key Settings ..................................................................................................................................... 128
Route Redistribution Settings.................................................................................................................. 129
Static/Default Route Settings ................................................................................................................... 130
Static ARP Settings................................................................................................................................... 131
RIP ............................................................................................................................................................ 132
RIP Global Setting .................................................................................................................................... 132
RIP Interface Settings............................................................................................................................... 132
OSPF ........................................................................................................................................................ 134
OSPF General Setting .............................................................................................................................. 134
OSPF Area ID Settings ............................................................................................................................. 135
OSPF Interface Settings ........................................................................................................................... 136
OSPF Virtual Interface Settings ................................................................................................................ 138
OSPF Area Aggregation Settings ............................................................................................................. 139
OSPF Host Route Settings....................................................................................................................... 140
DHCP/Bootp Relay ................................................................................................................................... 141
DNS Relay ................................................................................................................................................ 142
VRRP ........................................................................................................................................................ 143
VRRP Configuration ................................................................................................................................. 144
VRRP Interface Settings........................................................................................................................... 144
VRRP Interface Settings........................................................................................................................... 145
VRRP Interface Entry Display ................................................................................................................... 147
IP Multicast ............................................................................................................................................... 148
IGMP Interface Settings ............................................................................................................................ 148
IGMP Interface Configuration ................................................................................................................... 149
DVMRP ..................................................................................................................................................... 150
DVMRP Global Setting ............................................................................................................................. 150
DVMRP Interface Settings ........................................................................................................................ 150
PIM ............................................................................................................................................................ 152
PIM-DM Global Setting ............................................................................................................................. 152
PIM-DM Interface Settings ........................................................................................................................ 152
Section 6 Security.....................................................................................................154
Trusted Host............................................................................................................................................. 154
Secure Socket Layer (SSL) ...................................................................................................................... 155
Download Certificate ................................................................................................................................ 156
SSL Configuration .................................................................................................................................... 156
Secure Shell (SSH) .................................................................................................................................. 158
SSH Configuration ................................................................................................................................... 159

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SSH Algorithm .......................................................................................................................................... 160
SSH User Authentication.......................................................................................................................... 162
Access Authentication Control ................................................................................................................. 163
Policy & Parameters................................................................................................................................. 164
Application Authentication Settings.......................................................................................................... 165
Authentication Server Group .................................................................................................................... 166
Authentication Server Host ....................................................................................................................... 167
Login Method Lists ................................................................................................................................... 168
Enable Method Lists ................................................................................................................................ 170
Local Enable Password........................................................................................................................... 172
Enable Admin ........................................................................................................................................... 172
Section 7 Management.............................................................................................174
SNMPV3.................................................................................................................................................... 176
SNMP User Table ..................................................................................................................................... 176
SNMP User Table Display........................................................................................................................ 176
SNMP View Table ..................................................................................................................................... 178
SNMP Group Table ................................................................................................................................... 179
SNMP Community Table .......................................................................................................................... 182
SNMP Host Table ..................................................................................................................................... 183
SNMP Engine ID....................................................................................................................................... 184
Section 8 Monitoring ................................................................................................185
Port Utilization........................................................................................................................................... 186
CPU Utilization ......................................................................................................................................... 187
Packets..................................................................................................................................................... 187
Received Packets..................................................................................................................................... 187
Received Unicast/Multicast/Broadcast Packets ...................................................................................... 189
Transmitted Packets ................................................................................................................................ 191
Errors........................................................................................................................................................ 192
Received Errors........................................................................................................................................ 193
Transmitted Errors ................................................................................................................................... 195
Size ........................................................................................................................................................... 197
Packet Size ............................................................................................................................................... 197
MAC Address ............................................................................................................................................ 199
Switch History ........................................................................................................................................... 200
IGMP Snooping Table............................................................................................................................... 201
Browser Router Port................................................................................................................................. 201
VLAN Status.............................................................................................................................................. 202
Session Table .......................................................................................................................................... 202
Layer 3 Feature......................................................................................................................................... 203
Browse IP Address................................................................................................................................... 203
Browse Routing Table.............................................................................................................................. 204
Browse ARP Table ................................................................................................................................... 204
Browse IP Multicast Forwarding Table..................................................................................................... 205
Browse IGMP Group Table ....................................................................................................................... 205
OSPFMonitor............................................................................................................................................ 206
Browse OSPF LSDB Table....................................................................................................................... 206
Browse OSPF Neighbor Table ................................................................................................................. 207
Browse OSPF Virtual Neighbor Table ...................................................................................................... 208
DVMRPMonitor......................................................................................................................................... 208
Browse DVMRP Routing Table ................................................................................................................ 208
Browse DVMRP Neighbor Address Table ...............................................................................................208
Browse DVMRP Routing Next Hop Table ................................................................................................ 209
PIMMonitor ............................................................................................................................................... 209
Browse PIM Neighbor Address Table ...................................................................................................... 209
Section 9 Maintenance.............................................................................................210
TFTP Services .......................................................................................................................................... 210
Download Firmware.................................................................................................................................210
Download Configuration File ................................................................................................................... 211
Save Settings............................................................................................................................................ 211
Save History Log ...................................................................................................................................... 211
Ping Test................................................................................................................................................... 212

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Save Changes.......................................................................................................................................... 212
Factory Reset............................................................................................................................................ 213
Restart System ......................................................................................................................................... 214
Logout....................................................................................................................................................... 214
Appendix A Technical Specifications .....................................................................215
Appendix B Cables and Connectors ......................................................................216
Appendix C Cable Lengths ......................................................................................217
Glossary .....................................................................................................................218

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About This Manual
This manual is divided into two general sections:
Basics - Provides a general introduction to the Switch, its hardware and management
features, as well as a guide to setting up the Switch hardware and initial configu-
ration.
Web Manager - Describes management and configuration of Switch features, following the
layout of the Switch Web Manager. Four of the Switch six main folders - Secu-
rity, Management, Monitoring, Maintenance, and Single IP Management have
separate chapters. Configuration is divided into two chapters, Basic Configura-
tion and Advanced Configuration.
Intended Readers
This Manual contains information useful for setup and management and of the KGS-3120 Switch. This
manual is intended for network managers familiar with network management concepts and terminol-
ogy.
Typographical Conventions
Convention Description
[ ] In a command line, square brackets indicate an optional entry. For
example: [copy filename] means that optionally you can type copy
followed by the name of the file. Do not type the brackets.
Bold font Indicates a button, a toolbar icon, menu, or menu item. For example:
Open the File menu and choose Cancel. Used for emphasis. May
also indicate system messages or prompts appearing on your
screen. For example: You have mail. Bold font is also used to
represent filenames, program names and commands. For example:
use the copy command.
Typewriter Font Indicates commands and responses to prompts that must be typed
exactly as printed in the manual.
Initial capital letter Indicates a window name. Names of keys on the keyboard have
initial capitals. For example: Click [Enter].
Italics Indicates a window name or a field. Also can indicate a variables or
parameter that is replaced with an appropriate word or string. For
example: type filename means that you should type the actual
filename instead of the word shown in italic.
Menu Name > Menu Option Menu Name > Menu Option indicates the menu structure. Device >
Port > Port Properties means the Port Properties menu option under
the Port menu option that is located under the Device menu.

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Notes, Notices, and Cautions
A NOTE indicates important information that helps you make better use of your
device.
A NOTICE indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
A CAUTION indicates a potential for property damage, personal injury, or death.
Safety Instructions
Use the following safety guidelines to ensure your own personal safety and to help protect your system
from potential damage. Throughout this safety section, the caution icon is used to indicate
cautions and precautions that you need to review and follow.
Safety Cautions
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the
followingprecautions.
• Observe and follow service markings.
* Do not service any product except as explained in your system documentation.
* Opening or removing covers that are marked with the triangular symbol with a lightning bolt may
expose you to electrical shock.
* Only a trained service technician should service components inside these compartments.
• If any of the following conditions occur, unplug the product from the electrical outlet and replace
the part or contact your trained service provider:
* The power cable, extension cable, or plug is damaged.
* An object has fallen into the product.
* The product has been exposed to water.
* The product has been dropped or damaged.
* The product does not operate correctly when you follow the operating instructions.
• Keep your system away from radiators and heat sources. Also, do not block cooling vents.
• Do not spill food or liquids on your system components, and never operate the product in a wet
environment. If the system gets wet, see the appropriate section in your troubleshooting guide or
contact your trained service provider.
• Do not push any objects into the openings of your system. Doing so can cause fire or electric
shock by shorting out interior components.
• Use the product only with approved equipment.
• Allow the product to cool before removing covers or touching internal components.
• Operate the product only from the type of external power source indicated on the electrical
ratings label. If you are not sure of the type of power source required, consult your service
provider or local power company.

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• To help avoid damaging your system, be sure the voltage selection switch (if provided) on the
power supply is set to match the power available at your location:
* 115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries
such as South Korea and Taiwan
* 100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
* 230 V/50 Hz in most of Europe, the Middle East, and the Far East
• Also be sure that attached devices are electrically rated to operate with the power available in
yourlocation.
• Use only approved power cable(s). If you have not been provided with a power cable for your
system or for any AC-powered option intended for your system, purchase a power cable that is
approved for use in your country. The power cable must be rated for the product and for the
voltage and current marked on the product electrical ratings label. The voltage and current rating
of the cable should be greater than the ratings marked on the product.
• To help prevent electric shock, plug the system and peripheral power cables into properly
grounded electrical outlets. These cables are equipped with three-prong plugs to help ensure
proper grounding. Do not use adapter plugs or remove the grounding prong from a cable. If you
must use an extension cable, use a 3-wire cable with properly grounded plugs.
• Observe extension cable and power strip ratings. Make sure that the total ampere rating of all
products plugged into the extension cable or power strip does not exceed 80 percent of the
ampere ratings limit for the extension cable or power strip.
• To help protect your system from sudden, transient increases and decreases in electrical power,
use a surge suppressor, line conditioner, or uninterruptible power supply (UPS).
• Position system cables and power cables carefully; route cables so that they cannot be stepped
on or tripped over. Be sure that nothing rests on any cables.
• Do not modify power cables or plugs. Consult a licensed electrician or your power company for
site modifications. Always follow your local/national wiring rules.
• When connecting or disconnecting power to hot-pluggable power supplies, if offered with your
system,observe the following guidelines:
* Install the power supply before connecting the power cable to the power supply.
* Unplug the power cable before removing the power supply.
* If the system has multiple sources of power, disconnect power from the system by unplugging all
power cables from the power supplies.
• Move products with care; ensure that all casters and/or stabilizers are firmly connected to the
system. Avoid sudden stops and uneven surfaces.
General Precautions for Rack-Mountable Products
Observe the following precautions for rack stability and safety. Also, refer to the rack installation
documentation accompanying the system and the rack for specific caution statements and procedures.
• Systems are considered to be components in a rack. Thus, component refers to any system as
well as to various peripherals or supporting hardware.
Installing systems in a rack without the front and side stabilizers installed could cause
the rack to tip over, potentially resulting in bodily injury under certain circumstances.
Therefore, always install the stabilizers before installing components in the rack. After
installing system/components in a rack, never pull more than one component out of the

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rack on its slide assemblies at one time. The weight of more than one extended compo-
nent could cause the rack to tip over and may result in serious injury.
• Before working on the rack, make sure that the stabilizers are secured to the rack, extended to
the floor, and that the full weight of the rack rests on the floor. Install front and side stabilizers on
a single rack or front stabilizers for joined multiple racks before working on the rack.
• Always load the rack from the bottom up, and load the heaviest item in the rack first.
• Make sure that the rack is level and stable before extending a component from the rack.
• Use caution when pressing the component rail release latches and sliding a component into or out
of a rack; the slide rails can pinch your fingers.
• After a component is inserted into the rack, carefully extend the rail into a locking position, and
then slide the component into the rack.
• Do not overload the AC supply branch circuit that provides power to the rack. The total rack
load should not exceed 80 percent of the branch circuit rating.
• Ensure that proper airflow is provided to components in the rack.
• Do not step on or stand on any component when servicing other components in a rack.
A qualified electrician must perform all connections to DC power and to safety
grounds. All electrical wiring must comply with applicable local or national codes and
practices.
Never defeat the ground conductor or operate the equipment in the absence of a
suitably installed ground conductor. Contact the appropriate electrical inspection author-
ity or an electrician if you are uncertain that suitable grounding is available.
The system chassis must be positively grounded to the rack cabinet frame. Do not
attempt to connect power to the system until grounding cables are connected. The
completed power and safety ground wiring must be inspected by a qualified electrical
inspector. An energy hazard will exist if the safety ground cable is omitted or discon-
nected.
Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your system. To prevent static damage, dis-
charge static electricity from your body before you touch any of the electronic components, such as the
microprocessor. You can do so by periodically touching an unpainted metal surface on the chassis.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
1. When unpacking a static-sensitive component from its shipping carton, do not remove the compo-
nent from the antistatic packing material until you are ready to install the component in your
system. Just before unwrapping the antistatic packaging, be sure to discharge static electricity
from your body.
2. When transporting a sensitive component, first place it in an antistatic container or packaging.
3. Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads,
workbench pads and an antistatic grounding strap.

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Section 1 Introduction
• Switch Description
•Features
•Front Panel Components
•LED Indicators
•Rear Panel Description
•Plug-inModules
•Management Options
Switch Description
TheKGS-3120 is a modular GigabitEthernet backbone Switch designed foradaptability and scalability.
The Switch can utilize up to twelve Gigabit Ethernet ports to function as a central distribution hub for
otherSwitches or Switch groups, or routers. The four built-in combinationGigabit ports havethe option
of being used as either 1000BASE-T or SFP Gigabit connections.
Features
• Fourbuilt-in combination 10/100/1000BASE-T/SFPports
• Two additional 4-port modules can be added to provide up to eight additional Gigabit Ethernet
ports (10/100/1000BASE-T or Gigabit SFP).
• 24 Gbps Switching fabric capacity
• Supports 802.1D STP and 802.1w Rapid Spanning Tree for redundant back up bridge paths
• Supports 802.1Q VLAN
• Supports IGMP snooping
• Supports 802.1p Priority Queues
• Supports 802.3ad LACP Link Aggregation
• Supportsport mirroring
• Access Control Profile (ACL)
• Multi-layer Access Control (based on MAC address, IP address, VLAN, Protocol, 802.1p,
DSCP)
• Quality of Service (QoS) customized control
• Port Security (MAC address table lock)
• 802.1x (port-based and MAC-based) access control and RADIUS Client support
• Administrator-definable port security
• Per-port bandwidth control
• Broadcast, Multicast and DLF storm control
• IEEE 802.3z and IEEE 802.3x compliant Flow Control for all Gigabit ports
• SNMP v.1, v.2, v.3 network management, RMON support
• Supports optional external Redundant Power Supply
• Supports Web-based management.
• Supports CLI management.
• Supports BOOTP/DHCP/DNS Relay

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• Supports TFTP upgrade
• Supports System Log
• Fully configurable either in-band or out-of-band control via RS-232 console serial connection.
• Telnet remote control console
• Traffic Segmentation
• Simple Network Time Protocol
• MAC address update notification
• Web GUI Traffic Monitoring
• Supports RIP v1, v2
• Supports OSPF
• Supports PIM-DM
• Supports DVMRP
• Supports IGMP
• Supports VRRP
• Supports floating static route
• Supports SSL
• Supports SSH
• Supports RADIUS Authentication
• Supports TACACS, TACACS+, and XTACACS
Front-Panel Components
The front panel of the Switch consists of LED indicators, an RS-232 communication port, two slide-in
module slots, and four 1000BASE-T/SFP combo ports
Front Panel View of the Switch as shipped (no modules are installed)
Comprehensive LED indicators display the status of the Switch and the network.
An RS-232 DCE console port for setting up and managing the Switch via a connection to a console
terminal or PC using a terminal emulation program.
A front-panel slide-in module slot for Gigabit Ethernet ports can accommodate a 4-port 10/
1001000BASE-T Gigabit Ethernet module or a 4-port Gigabit Ethernet SFP module.

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LED Indicators
The LED indicators of the Switch include Power, Console, and Link/Act. The following shows the
LED indicators for the Switch along with an explanation of each indicator.
LED Indicators
Power This indicator on the front panel should be lit during the Power-On Self Test (POST). It
will light green approximately two seconds after the Switch is powered on to indicate
the ready state of the device.
Console This indicator is lit green when the Switch is being managed via out-of-band/local console
management through the RS-232 console port using a straight-through serial cable.
RPS This indicator will light steady amber when an external power supply is supplying
power. This indicates the internal power supply has failed.
Link/Act Each on-board Gigabit Ethernet port has a corresponding indicator. This will light steady
green for a valid link and blink whenever there is reception or transmission (i.e. Activ-
ity/Act) of data occurring at a port.
The ID LED on the Switch front panel will display an Falways
Rear Panel Description
The rear panel of the Switch contains an AC power connector.
Rear panel view of the Switch
The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in
the female connector of the provided power cord into this socket, and the male side of the cord into a
power outlet. The Switch automatically adjusts its power setting to any supply voltage in the range from
100 ~ 240 VAC at 50 ~ 60 Hz.
RPS Connector
Connect the optional external redundant power supply to the RPS connector. If the Switch’s internal
power unit fails, the redundant power system automatically supplies power to the Switch for uninter-
rupted operation. The Switch supports the RSPS-A60W redundant power supply units.

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Plug-in Modules
The KGS-3120 Switch is able to accommodate optional plug-in modules in order to increase function-
ality and performance. Two modules may be installed and used in combination with any of the three
available modules. Plug-in modules must be purchased separately.
KGM-340T : 4-Port 10/100/1000Mbps Expansion Module
4-Port 10/100/1000BASE-T Four-port module
•Front-panelmodule
•Connects to 1000BASE-T devices
•LED indicators for Link/Activity
KGM-340F : 4-Port Gigabit SFP (Mini GBIC) Expansion Module
4-Port Gigabit SFP module
•Front-panelmodule
•Connects to Gigabit Ethernet devices
•LED indicators for Link/Activity and Status
Management Options
The system may be managed out-of-band through the console port on the front panel or in-band using
Telnet, a web browser or SNMP-based management.

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Web-based Management Interface
After you have successfully installed the Switch, you can configure the Switch, monitor the LED panel,
and display statistics graphically using a web browser, such as Opera, Netscape Navigator (version 6.2
and higher) or Microsoft Internet Explorer (version 5.0).
To access the Switch through a web browser, the computer running the web browser
must have IP-based network access to the Switch.
Command Line Console Interface through the Serial Port or Telnet
You can also connect a computer or terminal to the serial console port or use Telnet to access the
Switch. The command-line-driven interface provides complete access to all Switch management fea-
tures. For a full list of commands, see the Command Line Reference Manual, which is included on the
documentation CD.
SNMP-Based Management
You can manage the Switch with an SNMP-compatible console program. The Switch is supports
SNMP version 1.0, version 2.0 and version 3.0. The SNMP agent decodes the incoming SNMP mes-
sages and responds to requests with MIB objects stored in the database. The SNMP agent updates the
MIB objects to generate statistics and counters.
The Switch supports a comprehensive set of MIB extensions:
• RFC 1643 Ether-like MIB
• RFC 1724 RIPv2 MIB
• RFC 1757 RMON
• RFC 1850 OSPF MIB
• RFC 1907 SNMPv2 MIB
• RFC 2021 RMON II MIB
• RFC 2096 IP-FORWARD MIB
• RFC 2233 IF-MIB
• RFC 2358 Ethernet-Link MIB
• RFC 2573 SNMP Notification and Target MIB
• RFC 2574 SNMP User-based SM MIB
• RFC 2575 SNMP View-based ACM MIB
• RFC 2674 802.1p and 802.1q Bridge MIB
• RFC 2737 Entity MIB
• RFC 2932 IPMROUTE STD MIB
• RFC 2933 IGMP MIB
• RFC 2934 PIM MIB
• IEEE8021-PAE 802.1x PAE MIB
• Enterprise MIB

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Section 2 Installation
•Package Contents
•Before You Connect to the Network
•Installing the Switch without a Rack
•Installing the Switch in a Rack
•External Redundant Power System
•Connecting the Console Port
•Password Protection
•SNMP Settings
•IP Address Assignment
•Connecting Devices to the Switch
Package Contents
Before you begin installing the Switch, confirm that your package contains the following items:
• One KGS-3120 Switch unit
• Mounting kit: 2 mounting brackets and screws
• Four rubber feet with adhesive backing
• One AC power cord
• ThisManual
• CLI Reference
Before You Connect to the Network
Before you connect to the network, you must install the Switch on a flat surface or in a rack, set up a
terminal emulation program, plug in the power cord, and then set up a password and IP address.
Do not connect the Switch to the network until you have established the correct IP
settings and user accounts.
Installing the Switch without the Rack
The Switch is supplied with rubber feet for stationing it on a flat surface and mounting brackets and
screws for mounting the Switch in a rack.
1. Install the Switch on a level surface that can safely support the weight of the Switch and its
attached cables. The Switch must have adequate space for ventilation and for accessing cable
connectors.
2. Set the Switch on a flat surface and check for proper ventilation. Allow at least 5 cm (2 inches)
on each side of the Switch and 15 cm (6 inches) at the back for the power cable.
3. Attach the rubber feet on the marked locations on the bottom of the chassis.The rubber feet,
although optional, are recommended to keep the unit from slipping.

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Install rubber feet for installations with or without a rack
Installing the Switch in a Rack
You can install the Switch in most standard 19-inch (48.3-cm) racks. Refer to the illustrations below.
1. Use the supplied screws to attach a mounting bracket to each side of the Switch.
2. Align the holes in the mounting bracket with the holes in the rack.
3. Insert and tighten two screws through each of the mounting brackets.
Attach mounting brackets to Switch
Fasten the mounting brackets to the Switch using the screws provided. With the brackets attached
securely, you can mount the Switch in a standard rack as shown in Figure 2-3 on the following page.

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Mounting the Switch in a Standard 19" Rack
Install Switch in equipment rack
Unit ID Display
The 7-segment LED (as shown below) on the front panel will always display F (15 in hex).
KGS-3120 Front Panel

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External Redundant Power System
The Switch supports an external redundant power system RSPS-A60W.
See the RSPS-A60W documentation for more information.
Do not use the Switch with any redundant power system other than the RSPS-A60W.
Connecting the Console Port
The Switch provides an RS-232 serial port that enables a connection to a computer or terminal for
monitoring and configuring the Switch. This port is a male DB-9 connector, implemented as a data
terminal equipment (DTE) connection.
To use the console port, you need the following equipment:
• A terminal or a computer with both a serial port and the ability to emulate a terminal
• A null modem or crossover RS-232 cable with a female DB-9 connector for the console port on
the Switch
To connect a terminal to the console port:
1. Connect the female connector of the RS-232 cable directly to the console port on the Switch, and
tighten the captive retaining screws.
2. Connect the other end of the cable to a terminal or to the serial connector of a computer running
terminal emulation software. Set the terminal emulation software as follows:
a. Select the appropriate serial port (COM port 1 or COM port 2).
b. Set the data rate to 9600 baud.
c. Set the data format to 8 data bits, 1 stop bit, and no parity.
d. Set flow control to none.
e. Under Properties, select VT100 for Emulation mode.
f. Select Terminal keys for Function, Arrow, and Ctrl keys. Ensure that you select Terminal keys
(not Windows keys).
When you use HyperTerminal with the Microsoft Windows 2000 operating system,
ensure that you have Windows 2000 Service Pack 2 or later installed. Windows 2000
Service Pack 2 allows you to use arrow keys in HyperTerminal’s VT100 emulation.
See www.microsoft.com for information on Windows 2000 service packs.
g. After you have correctly set up the terminal, plug the power cable into the power receptacle
on the back of the Switch. The boot sequence appears in the terminal.
h. After the boot sequence completes, the console login screen displays.
i. If you have not logged into the command line interface (CLI) program, press the Enter key at
the User name and password prompts. There is no default user name and password for the
Switch, user names and passwords must first be created by the administrator. If you have
previously set up user accounts, log in and continue to configure the Switch.
j. Enter the commands to complete your desired tasks. Many commands require administrator-
level access privileges. Read the next section for more information on setting up user accounts.
See the Command Line Reference on the documentation CD for a list of all commands and
additional information on using the CLI.