Linksys EG24M - EtherFast II Switch User manual

EtherFast®II Series
10/100 Managed
24-Port GigaSwitch
Use this guide to install:
Linksys EtherFast®II 10/100
Managed 24-Port GigaSwitch
(EG24M)
User Guide

COPYRIGHT & TRADEMARKS
Copyright © 2000 Linksys, All Rights Reserved. EtherFast is a registered trademark of
Linksys. Microsoft, Windows, and the Windows logo are registered trademarks of
Microsoft Corporation. All other trademarks and brand names are the property of their
respective proprietors.
LIMITED WARRANTY
Linksys guarantees that every 10/100 Managed 24-Port GigaSwitch is free from physi-
cal defects in material and workmanship under normal use for FIVE years from the date
of purchase. If the product proves defective during this warranty period, call Linksys
Customer Support in order to obtain a Return Authorization Number. BE SURE TO
HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. RETURN
REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. When
returning a product, mark the Return Authorization Number clearly on the outside of the
package and include your original proof of purchase. All customers outside of the
United States of America and Canada shall be held responsible for shipping and han-
dling charges.
IN NO EVENT SHALL LINKSYS’ LIABILITY EXCEED THE PRICE PAID FOR THE PROD-
UCT FROM DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAM-
AGES RESULTING FROM THE USE OF THE PRODUCT, ITS ACCOMPANYING SOFT-
WARE, OR ITS DOCUMENTATION. LINKSYS DOES NOT ISSUE REFUNDS. WARRAN-
TY DOES NOT COVER NATURAL DISASTERS OR ACTS OF NATURE.
Linksys makes no warranty or representation, expressed, implied, or statutory, with
respect to its products or the contents or use of this documentation and all accompa-
nying software, and specifically disclaims its quality, performance, merchantability, or
fitness for any particular purpose. Linksys reserves the right to revise or update its
products, software, or documentation without obligation to notify any individual or entity.
Please direct all inquiries to:
Linksys P.O. Box 18558, Irvine, CA 92623.
FCC STATEMENT
The 10/100 Managed 24-Port GigaSwitch has been tested and found to comply with
the limits for a Class Adigital device, pursuant to Part 15 of the FCC Rules. These lim-
its are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used according to the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interfer-
ence to radio or television reception, which is found by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the fol-
lowing measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment or device
• Connect the equipment to an outlet other than the receiver’s
• Consult a dealer or an experienced radio/TV technician for assistance
008

Linksys EtherFast
®
II Series
Table of Contents
Introduction 1
Package Contents 2
Getting to Know the GigaSwitch 3
LEDs 3
The RJ-45 Ports 4
The Gigabit Expansion Ports 4
The Console Port 4
Installing the GigaSwitch 5
Pre-Installation Considerations 5
Rack-Mounting the GigaSwitch 6
Powering on and Resetting the GigaSwitch 7
Uplinking the GigaSwitch 7
Installing the Gigabit Expansion Modules 7
Switch Management 8
Overview 8
Local Console Management 8
Remote Console Management 9
SNMP Management 9
Assigning an IP Address to the GigaSwitch 9
Configuring the GigaSwitch 10
Overview 10
Web-Based Configuration and Management 10
Logging On to the GigaSwitch 10
Basic Management Activities 11
General Management Configuration 12
Changing the System Name 12
Changing the Location 13
Changing the Administration Password 13
Changing the Guest Password 15
Statistic Collection 15
Reboot-on-Error 16
Remote Telnet Login 16
Returning to the Basic Management Screen 17
10/100 Managed 24-Port GigaSwitch
LAN Port Configuration 17
Changing the Speed and Flow Control 18
Setting the Line Speed 18
Changing the Flow Control 20
Displaying Physical Port Address 20
Returning to the Basic Management Screen 21
Console Port Configuration 21
Changing the Console Baud Rate 22
Selecting a Flow Control Method 22
Enabling or Disabling Modem Control Options 23
Specifying a Modem Setup String 23
Enabling or Disabling SLIP 24
Specifying a SLIP Address 24
Specifying a SLIP Subnet Mask 25
Returning to the Basic Management Screen 25
Advanced Management Activities 26
Switching Database Configuration 27
VLAN Perspective 28
Default VLAN 28
Obtaining a VLAN Perspective 28
Creating a New VLAN 29
Adding New Switch Ports 30
Deleting a VLAN ID 32
Viewing VLAN Activities 33
Searching for MAC Addresses 34
Obtaining Additional Information 34
Scrolling Through Domains 35
Exiting the VLAN Screens 35
Viewing VLAN Settings 35
Adding Ports 36
Deleting Ports 37
IP Multicast Group Perspective 38
MAC Address Perspective 39
Port Perspective 40
Per Port VLAN Activities 40
Scrolling Through MAC Addresses 41
Per Port Statistics 42

10/100 Managed 24-Port GigaSwitch
Introduction
Maximize your network potential with the ultimate high-speed manageable
switch. The EtherFast II 10/100 Managed 24-Port GigaSwitch from Linksys
delivers a combination of Ethernet, Fast Ethernet, and Gigabit Ethernet solu-
tions, all in one surprisingly affordable package.
Perfect for demanding enterprise environments, the GigaSwitch’s “intelligent”
design provides maximum network control, regulating traffic and eliminating
server bottlenecks. The included software, with its web management interface
and upgrade capability, makes the GigaSwitch ideal for interactive web-based
applications.
And if it’s expansion you’re looking for, the 10/100 Managed 24-Port
GigaSwitch’s rack-mountable design and optional fiber expansion modules
ensure that your network will be primed to grow right along with your busi-
ness.
So when you’re ready to bring your network up to speed, bring it up to
Gigabit speed--with the EtherFast II 10/100 Managed 24-Port GigaSwitch.
1
The Linksys EtherFast II
10/100 Managed 24-Port GigaSwitch
Linksys EtherFast
®
II Series
IP Networking 43
IP & RIP Settings 44
ARP Table Settings 45
Adding Static ARP Table Entries 45
Deleting Static ARP Table Entries 47
Searching for ARP Table Entries 47
Routing Table 48
Adding Router Table Entries 49
Deleting Router Table Entries 50
Searching for Router Tsble Entries 51
DHCP Gateway Settings 51
Ping Settings 56
Bridging 57
Static Filtering 58
Spanning Tree Functions 60
Spanning Tree Port Configuration 60
Spanning Tree Port States 62
Spanning Tree Path Costs 63
Spanning Tree Port Priorities 64
SNMP Functions 65
Other Protocols 68
Port Trunking 69
Port Mirroring 71
Upgrading Firmware 73
SNMP and RMON Management 75
Overview 75
SNMP Agent and MIB-2 (RFC 1213) 75
RMON MIB (RFC 1757) and Bridge MIB (RFC 1493) 76
RMON Groups Supported 76
Bridge Group s Supported 77
Appendix 78
About Fast Ethernet 78
About Gigabit Ethernet 79
Fiber Optic Cabling 79
Twisted-Pair Cabling 80
Crimping Your Own Network Cables 81
Specifications 82
Customer Support 83

10/100 Managed 24-Port GigaSwitch
3
Getting to Know the GigaSwitch
MAIN
Power The LED will illuminate when the switch is powered on.
Management The LED will illuminate when management functions are
being performed.
PER PORT
Link 10/100 The LED will illuminate orange when the port is operating
(Row A) at 10Mbps, and illuminate green when operating at 100Mbps.
Tx/Rx The LED will flicker green when the port is transmitting
(Row B) data, and flicker orange when receiving data.
FD/Col The LED will illuminate green when the port is operating
(Row C) in full-duplex mode, and flicker orange when collisions are
being encountered.
GIGABIT
Link The LED will illuminate when the Gigabit Switch Module
is successfully connected to a network.
Tx/Rx The LED will flicker when the Gigabit Switch Module
is transmitting or receiving data.
FD The LED will illuminate when the Gigabit Switch Module
is operating in full-duplex mode.
Linksys EtherFast
®
II Series
• One EtherFast II 10/100 Managed 24-Port GigaSwitch
• One Power Cord
• Mounting Brackets
• One Serial/Console Cable
• User Guide and Registration Card
2
LEDs
Package Contents for the EtherFast II
10/100 Managed 24-Port GigaSwitch

10/100 Managed 24-Port GigaSwitch
Installing the GigaSwitch
Fast Ethernet Considerations
If you will be using the GigaSwitch for Fast Ethernet (100Mbps) applications,
you must observe the following guidelines:
• The maximum UTP cabling length using Category 3 cable is 328 feet (100
meters).
Full-Duplex Considerations
As previously mentioned, the GigaSwitch provides full-duplex support for its
RJ-45 ports. Full-duplex operation allows data to be sent and received simul-
taneously, doubling a port’s potential data throughput.
If you will be using the GigaSwitch in full-duplex mode, the maximum UTP
cable length using Category 5 cable is 328 feet (100meters).
Positioning the GigaSwitch
Before you choose a location for the GigaSwitch, observe the following
guidelines:
• Keep cabling away from sources of electrical noise, power lines, and
fluorescent lighting fixtures.
• Position the GigaSwitch away from water and moisture sources.
• To ensure adequate air flow around the GigaSwitch, be sure to provide a
minimum of one inch (25mm) clearance.
• Do not stack free-standing GigaSwitches more than four units high.
5
Linksys EtherFast
®
II Series
The 10/100 Managed 24-Port GigaSwitch is equipped with twenty-four auto-
sensing RJ-45 ports. These RJ-45 ports support network speeds of either
10Mbps or 100Mbps, and can operate in half- and full-duplex modes. Auto-
sensing technology enables each port to automatically detect the speed of the
device connected to it (10Mbps or 100Mbps), and adjust its speed and duplex
accordingly.
To connect a device to a port, you will need to use a network cable. UTP
Category 3 cable is acceptable for 10BaseT networks, however, if you are
using 100BaseTX devices you will need to use UTP Category 5 (or better)
cable. For more information on twisted-pair cabling, refer to the Twisted-Pair
Cabling section on page 80.
The 10/100 Managed 24-Port GigaSwitch is equipped with two gigabit
expansion ports, providing for the installation of one or two expansion mod-
ules. These ports provide links to high-speed network segments or individual
workstations at speeds of up to 1000Mbps (Gigabit Ethernet).
To establish a Gigabit Ethernet connection, you will need to install a SX or
TX Gigabit expansion module and use fiber optic cabling. for more informa-
tion on fiber optic cabling, refer to the Fiber Optic Cabling section on page
79.
The 10/100 Managed 24-Port GigaSwitch is equipped with a serial port
labeled CONSOLE (located on the rear of the switch) that allows you to con-
nect to a computer (for configuration purposes) using the provided serial cable.
4
The RJ-45 Ports
The Gigabit Expansion Ports
Pre-Installation Considerations
The Console Port

10/100 Managed 24-Port GigaSwitch
To power on the GigaSwitch, simply connect the AC power cord to the back
of the GigaSwitch, then plug the power cord into an electrical outlet. The
GigaSwitch will boot up within approximately 30 seconds.
If you need to reset the GigaSwitch, depress the RESET button (located on
the rear of the switch) for approximately one or two seconds.
Port 24 on the EtherFast II 10/100 Managed 24-Port GigaSwitch can act as an
uplink port, allowing you to uplink to other switches or hubs using a standard
Ethernet connection.
To uplink the switch, connect one end of a Category 5 (or better) network
cable into Port 24, then connect the other end of the cable into the desired
network device’s uplink port. To enable uplinking capability, depress the
MDI/MDIX button on the front of the switch.
Use the following instructions to install the Gigabit Expansion Modules:
Before you begin power off the GigaSwitch by disconnecting all cables from
the GigaSwitch.
1. Place the GigaSwitch right side up, with the rear panel facing you.
2. Use a screwdriver to remove the desired Expansion Module cover plate
(labeled “Slot 1” and “Slot 2”). Set the screws aside for step 4.
3. Insert the Gigabit Expansion Module (must be purchased seperately) into
the selected Gigabit Expansion Port, ensuring that it is seated firmly in
place.
4. Secure the module in place using the screws and a screwdriver.
The Gigabit Expansion Module installation is complete.
You can now re-connect the cables to the back of the GigaSwitch.
7
Linksys EtherFast
®
II Series
The 10/100 Managed 24-Port GigaSwitch can be used as a free-standing unit,
or installed in any standard 19-inch rack.
Use the following instructions to rack-mount the GigaSwitch:
Before you begin, disconnect all cables from the GigaSwitch.
1. Place the GigaSwitch right side up, with the front panel facing you.
2. Position a mounting bracket over the screw holes on one side of the
GigaSwitch.
3. Secure the mounting bracket by inserting three screws into the screw
holes. Use a screwdriver to tighten the screws, ensuring that they are
fastened firmly in place.
4. Repeat steps 2 and 3 to install the other mounting bracket on the opposite
side of the GigaSwitch.
5. Insert the GigaSwitch into the 19-inch rack and secure it with suitable
screws (not provided). Ensure that the ventilation holes are not obstructed.
The rack-mount installation is complete.
You can now re-connect the cables to the back of the GigaSwitch.
6
Rack-Mounting the GigaSwitch Powering On and Resetting the GigaSwitch
Uplinking the GigaSwitch
Installing the Gigabit Expansion Modules

10/100 Managed 24-Port GigaSwitch
Remote Console Management
You can manage the GigaSwitch remotely by having a remote host establish a
Telnet connection to the switch via an Ethernet or modem link.
To use this management method:
• The host must run a SLIP protocol if a modem is used
• The GigaSwitch must have an IP address
The Remote Console Management interface is identical in appearance and
functionality to the Local Console Management interface. If you are using
Microsoft’s Telnet, the terminal setting should be set to VT100/ANSI.
SNMP Management
You can manage the GigaSwitch across a LAN using an SNMP Network
Management Station with a graphical user interface. This management
method allows you to monitor statistical counters and set switch parameters
from the remote Network Management Station.
To use this management method:
• The network must use the IP protocol
• The GigaSwitch must be configured on the network with a proper IP address
Assigning an IP Address to the GigaSwitch
To manage the GigaSwitch remotely through the console port or with an
SNMP Management Station, you must assign an IP address to the
GigaSwitch. To assign an IP address to the GigaSwitch, refer to page 44 in
the Configuring the GigaSwitch section.
Logging On to the GigaSwitch
When you log on to the GigaSwitch for the first time, a sign-in string appears
and you are prompted for a console login name and password. The factory
default login name is set as “admin” and the password is “123456”. If you
desire, you can change this password after you log on.
9
Linksys EtherFast
®
II Series
Switch Management
The Linksys EtherFast II 10/100 24-Port Managed GigaSwitch offers an easy-
to-use, menu-driven console interface. Using this interface, you can perform
various switch configuration and management activities, including:
• Configuring system and port parameters
• Assigning an IP address
• Configuring routing properties
• Configuring ARP
• Configuring DHCP
• Setting VLAN policy
• Setting packet filtration
• Configuring STP and SNMP parameters
• Upgrading software
There are four methods of managing the GigaSwitch:
• Local Console Management using the serial port
• Remote Console Management using a network or dial-up connection
• Using an SNMP Management Station
• Web-Browser
Local Console Management
You can manage the GigaSwitch locally by connecting the switch to a PC or
workstation with terminal emulation software using the serial port.
Before you log on to the GigaSwitch, make sure that the switch’s serial port
settings are as follows:
BAUD RATE: 115200
FLOW: None
PARITY: None
STOP BITS: 1
DATA BITS: 8
EMULATION: ANSI
CURSOR EMULATION: VT100
8
Overview

10/100 Managed 24-Port GigaSwitch
After you log on to the GigaSwitch, the Switch Management screen will
appear.
The Switch Management screen consists of a series of menu boxes. Each
menu box has several options, which are listed vertically. A highlight in each
box lets you select the option you wish to choose; pressing the Enter key
activates the highlighted option.
To navigate through the Console Interface use the Up Arrow or Down Arrow
keys to move up or down, use the Enter key to select, and the Esc key to
return to the previous selection; menu options and any values entered or pres-
ent will get highlighted. Note that the bottom of the window always has a list-
ing of the appropriate key strokes.
Basic management activities consist of General, LAN port, and console port
tasks. To perform basic management activities:
1. From the Switch Management screen, highlight Basic Management and
press Enter. The Basic Management screen will appear.
2. From the Basic Management screen, highlight the desired option and
press the Enter key:
11
Linksys EtherFast
®
II Series
Configuring the GigaSwitch
The Linksys EtherFast II 10/100 24-Port Managed GigaSwitch features a
menu-driven console interface for switch configuration. The GigaSwitch can
be configured locally through the serial port or remotely via a Telnet connec-
tion.
This User Guide provides instructions on how to configure and manage the
GigaSwitch using the console interface. If you wish to manage the switch
through a web connection, you can do so by connecting to the GigaSwitch’s
IP Address using your web browser.
Although the web-based management menu will differ in appearance from
the console-based management menu, you will still have access to all the
same configuration and management features.
When logging on to the GigaSwitch, you will receive the following screen
prompt:
Linksys Gigabit Switch
Screen Name:
System Name
Login:
Enter the default login and password (see page 9), pressing Enter after each
entry (as shown in the image below).
10
Overview
Web-Based Configuration and Management
Logging On to the GigaSwitch
Basic Management Activities

10/100 Managed 24-Port GigaSwitch
2. Enter a system name (16 characters max.). If you make a mistake, use the
Backspace key to delete the error.
3. Press Enter to return to the General screen.
Changing the Location
1. From the General screen, move the cursor to Location and press the Enter
key. The Enter Location screen will appear.
2. Enter a location name. If you make a mistake, use the Backspace key to
delete the error.
3. Press Enter to return to the General screen.
Changing theAdministration Password
1. Use the Down Arrow key to highlight admin Password and press the Enter
key. The Enter Old Password screen will appear.
2. Enter the current password. Each character you type appears as an
asterisk (*). If you make a mistake, use the Backspace key to delete the
error.
3. Press Enter. The Enter New Password screen (see next page) will appear.
13
Linksys EtherFast
®
II Series
• General allows you change the system name, location, administration and
guest passwords, statistics collection, reboot-on-error, and remote Telnet
login.
• LAN Port allows you configure speed and flow control, link type, and
physical address.
• Console Port allows you change the console baud rate, flow control
method, modem control, and setup string; enable or disable SLIP; and con-
figure the SLIP address and SLIP subnet mask.
General Management Configuration
Select General from the Basic Management screen. The General screen will
appear, with the cursor on System Name, with any value highlighted.
Use the following procedure to configure the general management options:
Changing the System Name
1. From the General screen, highlight System Name and press the Enter key.
The Enter System Name screen appears.
12