USER GUIDE

BUSINESS SERIES
24-Port 10/100/1000 Gigabit Switch

Model: SR2024

About This User Guide

Icon Descriptions

While reading through the User Guide, you may encounter various icons designed to call attention to a specific item. Below are descriptions of these icons: NOTE: This check mark indicates that there is a note of interest and is something that you should pay special attention to while using the product.
WARNING: This exclamation point indicates that there is a caution or warning and it is something that could damage your property or product.
WEB: This globe icon indicates a noteworthy website address or e-mail address.

Online Resources

Website addresses in this document are listed without http:// in front of the address because most current web browsers do not require it. If you use an older web browser, you may have to add http:// in front of the web address.

Resource Website

Linksys Linksys International Glossary Network Security
www.linksys.com www.linksys.com/international www.linksys.com/glossary www.linksys.com/security
24-Port 10/100/100 Gigabit Switch

Copyright and Trademarks

Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright 2008 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.

Table of Contents

Chapter 1: Introduction
The 10/100/1000 Gigabit Switch. . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2: Product Overview
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 3: Installation

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pre-Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . 6 Placement Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Hardware Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Appendix A: Specifications Appendix B: Warranty and Regulatory Information
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Exclusions and Limitations. . . . . . . . . . . . . . . . . . . . . . . . . 13 Obtaining Warranty Service. . . . . . . . . . . . . . . . . . . . . . . . . 15 Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Appendix C: Regulatory Information
FCC Statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Safety Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Industry Canada Statement. . . . . . . . . . . . . . . . . . . . . . . . . 18 Avis dIndustrie Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . 18 User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic Equipment (WEEE) . 19
Appendix D: Contact Information
The 10/100/1000 Gigabit Switch
The 24-Port 10/100/1000 Gigabit Switch provides non-blocking, wirespeed switching for your 10, 100, and 1000 megabit network clients. Drop this Switch in place of your current workgroup hub or switch, and you can upgrade your high-requirement workstations to full Gigabit speeds as necessary, while continuing to service other clients at their current speeds. Or build your network from the ground up, with appropriate link speeds for each users requirements. Either way, its perfect for graphics, multimedia, and other applications that have to move large files across the network quickly. And with the 24-Port 10/100/1000 Gigabit Switch, when you need to expand your network even further, its two MiniGBIC ports let you add fiber-optic capability easily and cost effectively. With the 24-Port 10/100/1000 Gigabit Switch, you can connect your existing 10/100 Ethernet network to a Gigabit server backbone without any additional equipment. All ports have automatic MDI/MDI-X crossover detection, so you dont have to worry about the cable type. Each port independently and automatically negotiates speed and duplex mode. Address learning and aging is supported, as well as 802.3x flow control with head-of-line blocking prevention to keep your high-speed clients from bogging down in lower-speed traffic. Fast storeandforward switching prevents damaged packets from being passed on into the network. World famous Linksys reliability and the limited lifetime warranty give you peace of mind and the rackmount form factor integrates smoothly into your network infrastructure. Let the Linksys 24Port 10/100/1000 Gigabit Switch kick your network into high gear.

Features

24 RJ-45 ports for 10BASE-T/100BASE-TX/1000BASE-TX connections Supports half duplex and full duplex modes Autonegotiation support on all ports Auto MDI/MDI-X support on all ports for easy cable detection Efficient MAC Address learning engine supports up to 32K MAC Addresses Provides store-and-forward forwarding scheme Fits in standard 19-inch rack using included rack-mount kit Two miniGBIC ports for easy expansion to other miniGBIC equipped switches

Front Panel

The LEDs and ports are located on the front panel of the Switch.

SR2024

Link/Act Gigabit Link/Act SYSTEM Gigabit

(Shared with 12)

(Shared with 24)

miniGBIC1

miniGBIC2
System (Green) The System LED will light up when the Switch is powered on. Link/Act (Green) Each LED will light up when there is a connection made through its corresponding port. It will flash when there is activity on its corresponding port. Gigabit (Amber) Each LED will light up when there is a Gigabit connection made through its corresponding port. It will flash when there is activity on its corresponding port.
1-24 The Switch is equipped with 24 auto-sensing RJ45 ports. These RJ-45 ports support network speeds of either 10Mbps, 100Mbps, or 1000Mbps 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 and adjust its speed and duplex accordingly. To connect a device to a port, you will need to use a network cable. You will need to use Category 5 (or better) cables.
24-Port 10/100/100 Gigabit Switch
MiniGBIC (1-2) The Switch is equipped with two miniGBIC ports. These ports provide links to highspeed network segments or individual workstations at speeds of up to 1000Mbps (Gigabit Ethernet). These ports are shared. If you use the MiniGBIC1 port, then you cannot use port 12. If you use the MiniGBIC2 port, then you cannot use port 24.

Back Panel

The power port is located on the back panel of the Switch.
(power) The power port is where you will connect the included power cord.

Overview

This chapter will explain how to connect network devices to the Switch. The following diagram shows a typical network configuration.
Internet Cable./DSL Modem Router Wireless Access Point

Desktop

Notebook

Server

Typical Network Configuration
When you connect your network devices, make sure you dont exceed the maximum cabling distance of 100 meters (328 feet).

Pre-Installation Considerations
Full-Duplex Considerations
The Switch provides full-duplex support for its RJ-45 ports. Full-duplex operation allows data to be sent and received simultaneously, doubling a ports potential data throughput. If you will be using the Switch in fullduplex mode, the maximum cable length using Category 5 cable is 328 feet (100 meters).
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100Base-TX connections should also work for 1000Base-T, providing that all four wire pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e (enhanced Category 5) or Category 6 cable should be used. The Category 5e specification includes test parameters that are only recommendations for Category 5. Therefore, the first step in preparing existing Category 5 cabling for running 1000Base-T is a simple test of the cable installation to be sure that it complies with the IEEE 802.3ab standards.

Positioning the Switch

Before you choose a location for the Switch, observe the following guidelines:
Make sure that the Switch is accessible and that the cables can be connected easily. Keep cabling away from sources of electrical noise, power lines, and fluorescent lighting fixtures. Position the Switch away from water and moisture sources. To ensure adequate air flow around the Switch, be sure to provide a minimum clearance of two inches (50mm). Do not stack free-standing Switches more than four units high.

Placement Options

There are two ways to physically install the Switch, either set the Switch on its four rubber feet for desktop placement or mount the Switch in a standard-sized, 19-inch high rack for rack-mount placement.

Desktop Placement

When placing the Switch on a desktop, please observe the following guidelines:
Attach the rubber feet to the recessed areas on the bottom of the Switch.
Attaching the Rubber Feet
Place the Switch on a desktop near an AC power source. Keep enough ventilation space for the switch and check the environmental restrictions mentioned in the Specifications Appendix as you are placing the Switch. Connect the Switch to network devices according to the Hardware Installation instructions detailed in this guide.

Link/A

Gigabit Link/A Gigabit ct ct

10/10 24-Port

0/1000

Gigabit

Switch (Shared miniGBIC1 with 12) (Shared miniGBIC2 with 24)

Rack-Mount Placement

When rack-mounting the Switch, please observe the following guidelines:
Elevated Operating Ambient If installed in a closed or multiunit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer. Reduced Air Flow Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised. Mechanical Loading Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mechanical loading. Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern. Reliable Earthing Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips).

To rack-mount the Switch in any standard 19-inch rack, follow the instructions described below. 1. 2. Place the Switch on a hard flat surface with the front panel faced towards your front side. Attach a rackmount bracket to one side of the Switch with the supplied screws and secure the bracket tightly.

(Share (Share d with 12)

d with

miniGB miniGB IC1

24-Por

t 10/100

Gigabi

t Switch

Link/Ac

Gigabit Link/Ac t

SYSTEM

Attaching the Brackets

Follow the same steps to attach the other bracket to the opposite side. After the brackets are attached to the Switch, use suitable screws to securely attach the brackets to any standard 19-inch rack.

miniGBIC2 miniGBIC1

24-Port

10/100/100

0 Gigab

it Switc

Gigabit Link/A ct

Mounting in Rack

Connect the Switch to network devices according to the Hardware Installation instructions.

Hardware Installation

To connect network devices to the Switch, follow these instructions: 1. 2. Make sure all the devices you will connect to the Switch are powered off. Connect a Category 5 Ethernet network cable to one of the numbered ports on the Switch.
NOTE: Use Category 5e Ethernet network cables for your
Gigabit connections. 3. 4. 5. Connect the other end to a PC or other network device. Repeat steps 2 and 3 to connect additional devices. If you are using a miniGBIC port, then connect a miniGBIC module to the miniGBIC port. For detailed instructions, refer to the modules documentation.
NOTE: The miniGBIC ports are shared. Do not use port 12 if
you are using the miniGBIC1 port. Do not use port 24 if you are using the miniGBIC2 port. 6. Connect the supplied power cord to the Switchs power port, and plug the other end into an electrical outlet. When connecting power, always use a surge protector. Power on the devices connected to the Switch. Each active ports corresponding LED will light up on the Switch.
Hardware installation is complete.
Appendix A: Specifications
Model Standards Ports Cabling Type LEDs Dimensions WxHxD Unit Weight Power Certification Operating Temperature Storage Temperature Operating Humidity Storage Humidity SR2024 IEEE 802.3, 802.3u, 802.3x, 802.3ab 24 10/100/1000 Mbps RJ-45 ports CAT5e or better System, Link/Act 1-24, Gigabit 1-24 17.01" x 1.75" x 13.74" (432 x 44.5 x 349 mm) 7.98 lb (3.621 kg) 100-127/200-240V~1.0A/0.5A 50~60HZ FCC Class A, CE 32 to 104F (0 to 40C) -4 to 158F (-20 to 70C) 10 to 90%, Noncondensing 10 to 95%, Noncondensing
Specifications are subject to change without notice.
Appendix B: Warranty Information
Appendix B: Warranty and Regulatory Information

Limited Warranty

Linksys warrants this Linksys hardware product against defects in materials and workmanship under normal use for the Warranty Period, which begins on the date of purchase by the original enduser purchaser and lasts for the period specified for this product at www.linksys.com/warranty. The internet URL address and the web pages referred to herein may be updated by Linksys from time to time; the version in effect at the date of purchase shall apply. This limited warranty is non-transferable and extends only to the original end-user purchaser. Your exclusive remedy and Linksys entire liability under this limited warranty will be for Linksys, at its option, to (a) repair the product with new or refurbished parts, (b) replace the product with a reasonably available equivalent new or refurbished Linksys product, or (c) refund the purchase price of the product less any rebates. Any repaired or replacement products will be warranted for the remainder of the original Warranty Period or thirty (30) days, whichever is longer. All products and parts that are replaced become the property of Linksys.

Exclusions and Limitations
This limited warranty does not apply if: (a) the product assembly seal has been removed or damaged, (b) the product has been altered or modified, except by Linksys, (c) the product damage was caused by use with nonLinksys products, (d) the product has not been installed, operated, repaired, or maintained in accordance with instructions supplied by Linksys, (e) the product has been subjected to abnormal physical or electrical stress, misuse, negligence, or accident, (f ) the serial number on the Product has been altered, defaced, or removed, or (g) the product is supplied or licensed for beta, evaluation, testing or demonstration purposes for which Linksys does not charge a purchase price or license fee.
24-Port 10/100/100 Gigabit Switch 13
ALL SOFTWARE PROVIDED BY LINKSYS WITH THE PRODUCT, WHETHER FACTORY LOADED ON THE PRODUCT OR CONTAINED ON MEDIA ACCOMPANYINGTHE PRODUCT, IS PROVIDEDAS ISWITHOUT WARRANTY OF ANY KIND. Without limiting the foregoing, Linksys does not warrant that the operation of the product or software will be uninterrupted or error free. Also, due to the continual development of new techniques for intruding upon and attacking networks, Linksys does not warrant that the product, software or any equipment, system or network on which the product or software is used will be free of vulnerability to intrusion or attack. The product may include or be bundled with third party software or service offerings. This limited warranty shall not apply to such third party software or service offerings. This limited warranty does not guarantee any continued availability of a third partys service for which this products use or operation may require. TO THE EXTENT NOT PROHIBITED BY LAW, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary by jurisdiction. TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT (INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even if any warranty or remedy provided under this limited warranty fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Obtaining Warranty Service
If you have a question about your product or experience a problem with it, please go to www.linksys.com/support where you will find a variety of online support tools and information to assist you with your product. If the product proves defective during the Warranty Period, contact the Value Added Reseller (VAR) from whom you purchased the product or Linksys Technical Support for instructions on how to obtain warranty service. The telephone number for Linksys Technical Support in your area can be found in the product User Guide and at www.linksys.com. Have your product serial number and proof of purchase on hand when calling. A DATED PROOF OF ORIGINAL PURCHASE IS REQUIRED TO PROCESS WARRANTY CLAIMS. If you are requested to return your product, you will be given a Return Materials Authorization (RMA) number. You are responsible for properly packaging and shipping your product to Linksys at your cost and risk. You must include the RMA number and a copy of your dated proof of original purchase when returning your product. Products received without a RMA number and dated proof of original purchase will be rejected. Do not include any other items with the product you are returning to Linksys. Defective product covered by this limited warranty will be repaired or replaced and returned to you without charge. Customers outside of the United States of America and Canada are responsible for all shipping and handling charges, custom duties, VAT and other associated taxes and charges. Repairs or replacements not covered under this limited warranty will be subject to charge at Linksys then-current rates.

Technical Support

This limited warranty is neither a service nor a support contract. Information about Linksys current technical support offerings and policies (including any fees for support services) can be found at: www.linksys.com/support. This limited warranty is governed by the laws of the jurisdiction in which the Product was purchased by you. Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.

FCC Statement

This equipment has been tested and complies with the specifications for a Class A digital device, pursuant to Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. These limits are designed to provide reasonable protection against harmful interference when 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 to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

WARNING: You are cautioned that changes or modifications
not expressly approved by the party responsible for compliance could void your authority to operate the equipment.

Safety Notices

Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication line cord. Do not use this product near water, for example, in a wet basement or near a swimming pool. Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.
WARNING: This product contains lead, known to the
State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.
Industry Canada Statement
This Class A digital apparatus complies with Canadian ICES-003. Operation is subject to the following two conditions: 1. 2. This device may not cause interference and This device must accept any interference, including interference that may cause undesired operation of the device.

Avis dIndustrie Canada

Cet appareil numrique de la classe A est conforme la norme NMB-003 dIndustrie Canada. Le fonctionnement est soumis aux conditions suivantes : 1. 2. Ce priphrique ne doit pas causer dinterfrences; Ce priphrique doit accepter toutes les interfrences reues, y compris celles qui risquent dentraner un fonctionnement indsirable.
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic Equipment (WEEE)
This document contains important information for users with regards to the proper disposal and recycling of Linksys products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:
English - Environmental Information for Customers in the European Union
European Directive 2002/96/EC requires that the equipment bearing this symbol on the product and/or its packaging must not be disposed of with unsorted municipal waste. The symbol indicates that this product should be disposed of separately from regular household waste streams. It is your responsibility to dispose of this and other electric and electronic equipment via designated collection facilities appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. For more detailed information about the disposal of your old equipment, please contact your local authorities, waste disposal service, or the shop where you purchased the product.

WEB: For additional information, please visit

www.linksys.com

Linksys Contact Information
Website Support Site FTP Site Advice Line Support RMA (Return Merchandise Authorization) http://www.linksys.com http://www.linksys.com/support ftp.linksys.com 800-546-5797 (LINKSYS) 800-326-7114 http://www.linksys.com/warranty
7122810NC-RR 24-Port 10/100/100 Gigabit Switch 27

Model: SR216 and SR224

At the top of the Summary screen, an image of the Switchs front panel provides the following color-coded status information for the Switchs Ethernet ports: Green Indicates a connection. Grey Indicates no connection. Orange Indicates the port has been closed down by the administrator.

Login Screen

When you click a ports LED, the statistics for that port are displayed. NOTE: The port colors in the Summary screen are not related to the colors of the LEDs on the Switchs ports. The port LEDs display different status information, as described in Chapter 2: Product Overview.
NOTE: The default IP address of the device is 192.168.1.254. If you have modified this address, enter the correct IP address. The device should be on the same subnet as the management station used to configure the device. The first time you open the Web-based Utility, enter admin in the User Name field, and leave the Password field blank. Click the OK button. For security purposes, it is recommended that you set a new password on the System Password screen. the System Password screen.

Device Information

System Name Displays the name for the Switch, if one has been entered on the Setup tabs Network Settings screen.
IP Address The IP address assigned to the Switch. This setting can be configured from the Setup tabs Network Settings screen. Subnet Mask The Subnet Mask assigned to the Switch. This setting can be configured from the Setup tabs Network Settings screen. DNS Servers The IP address of your ISPs server that translates the names of websites into IP addresses. This setting can be configured from the Setup tabs Network Settings screen. Default Gateway The IP address of the gateway router between the Switch and management stations on other network segments. This setting can be configured from the Setup tabs Network Settings screen. Address Mode Specifies whether IP functionality is enabled via manual configuration (Static) or Dynamic Host Configuration Protocol (DHCP). This setting can be configured from the Setup tabs Network Settings screen. Base MAC Address Displays the MAC address of the Switch.

SNTP Servers

Server1 Enter the primary SNTP server here.
Server2 Enter a secondary SNTP server here. SNTP Polling Interval (6086400 sec) Specify the amount of time (in seconds) before the Switch polls the SNTP server. The default value is every 1024 seconds (approx. 17 minutes). Click the Save Settings button to save your changes or click Cancel Changes to discard the information.

Set Time

Use System Time Select this option to use the local hardware clock. Use SNTP Time Select this option to synchronize the time to an SNTP (Simple Network Time Protocol) server.

Local Time

Hours Enter the two-digit hour here. Minutes Enter the two-digit minutes here. Seconds Enter the two-digit seconds here. Month Enter the two-digit month here. Day Enter the two-digit day here. Year Enter the last two digits of the year here (for example, 08 instead of 2008). Time Zone Select your time zone from the drop-down menu. Time zones are identified by the difference between Greenwich Mean Time (GMT) and local time.

Daylight Saving

Daylight Saving Select Daylight Saving to enable it on the Switch. If the Switch should use US daylight savings, then select USA. If the Switch should use EU daylight savings, then select European. If it should use another kind of daylight savings, then select Custom and complete the From and To fields.
Setup > Green Ethernet
The Green Ethernet Configuration screen allows you to enable energy-efficient Ethernet (EEE). EEE optimizes power consumption by monitoring both port and system power requirements, while minimizing energy consumption. Green Ethernet ensures that the network operation is not comprimised, while at the same time maintaining a Green network. This feature has been added to version 1.1 of SRW2048 and to version 1.3 of SRW2024 and SRW2016.
Port Management > Port Settings
The Port Settings screen shows you the settings for each of the Switchs ports.
Port The port number. To use an SFP module, click the Detail button of the appropriate port (G1, G2). Description A brief description of the port. To enter or modify the description, click the Detail button. Administrative Status The ports administrative status. To take the port offline, select the Down option. To allow normal access to the port, select Up.

LAG Configuration

LAG The LAG number (1-8). To display or edit another LAG, select the number from the drop-down menu. Description The user-defined LAG description of up to 64 characters. This field is blank by default. LACP Select the checkbox to enable Link Aggregation Control Protocol (LACP). LAG Type (Read-only) The LAG type. Administrative Status The LAGs administrative status. Select either Up or Down to enable or disable the LAG. Current Status (Read-only) The LAGs status, either Up or Down.
Port Management > Link Aggregation
Reactivate Suspended LAG If the LAG has been suspended, select this checkbox to reactivate the LAG. Operational Status (Read-only) Displays whether the LAG is operational or non-operational. Admin Auto Negotiation Enables or disables Auto Negotiation on the LAG. Auto-negotiation is a protocol between two link partners that enables a LAG to advertise its transmission rate, duplex mode and flow control (the flow control default is disabled) abilities to its partner. Current Auto Negotiation The current Auto Negotiation setting. Admin Speed The configured speed at which the LAG is operating. Current LAG Speed (Read-only) The current speed at which the LAG is operating. Admin Flow Control Enables or disables flow control or enables the auto negotiation of flow control on the LAG. Current Flow Control (Read-only) The current flow control setting. PVE Displays the PVE group to which the LAG is configured.
LAG The LAG number (1-8). Description The user-defined description for the LAG. Admin Status The administrative status of the LAG. Up indicates that the LAG is available. Down indicates that administrator has taken the port offline. When modifying the option, click Save Settings. Type Indicates if a LAG has been manually configured (static) or dynamically set through LACP. Link Status Displays the status of the link. Speed Displays the port speed. Duplex Displays the duplex mode. Flow Control Displays the flow control status of the LAG. It is active when the port uses Full Duplex Mode. LAG Mode Displays the LAG status: On, Off, or Not Present. Detail To create a new LAG, click Detail in the Detail column to display the Link Aggregation detail screen.

The RMON History Control screen is divided into RMON History and Log Table. Source Interface Displays the interface from which the history samples were taken. The possible field values are:
Port Specifies the port from which the RMON

RMON History Table

History Entry No Displays the history table entry number. Owner Displays the RMON station or user that requested the RMON information. The field range is 020 characters. Sample No Indicates the sample number from which the statistics were taken. Drop Events Displays the number of dropped events that have occurred on the interface since the device was last refreshed. This option is not available on the SRW224G4 and SRW248G4. Received Bytes (Octets) Displays the number of octets received on the interface since the device was last refreshed. This number includes bad packets and FCS octets, but excludes framing bits. Received Packets Displays the number of packets received on the interface since the device was last refreshed, including bad packets, Multicast and Broadcast packets. Broadcast Packets Displays the number of good Broadcast packets received on the interface since the device was last refreshed. This number does not include Multicast packets. Multicast Packets Displays the number of good Multicast packets received on the interface since the device was last refreshed. CRC Align Errors Displays the number of CRC and Align errors that have occurred on the interface since the device was last refreshed.

information was taken.

LAG Specifies the port from which the RMON
information was taken. Sampling Interval Indicates (in seconds) the time that samplings are taken from the ports. The field range is 13600. The default is 1800 seconds (equal to 30 minutes). Max No of Samples to Keep. Indicates the number of samples to save. Owner Displays the RMON station or user that requested the RMON information. The field range is 020 characters. The Add to List button adds the configured RMON sampling to the Log Table at the bottom of the screen.

Log Table

Source Interface Displays the interface from which the history samples were taken. Sampling Interval Indicates the time in seconds that samplings are taken from the port. Sampling Requested Displays the number of samples to be saved. The field range is 165,535. The default value is 50. Current Number of Samples Displays the current number of samples taken.
Undersize Packets Displays the number of undersized packets (less than 64 octets) received on the interface since the device was last refreshed. Oversize Packets Displays the number of oversized packets (over 1518 octets) received on the interface since the device was last refreshed. Fragments Displays the number of fragments (packets with less than 64 octets, excluding framing bits, but including FCS octets) received on the interface since the device was last refreshed. Jabbers Displays the total number of received packets that were longer than 1518 octets. This number excludes frame bits, but includes FCS octets that had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral octet (Alignment Error) number. The field range to detect jabbers is 20150 ms. Collisions Displays the number of collisions received on the interface since the device was last refreshed. Utilization Displays the percentage of the interface utilized.

LAG Displays the RMON statistics for the selected
LAG. Counter Name Displays the selected MIB variable.
Counter Value Displays the current counter value for the particular alarm.

RMON Events Log

Statistics > RMON Events
The RMON Events screen contains fields for defining RMON events.
RMON Events > Events Log
Event Displays the RMON events log entry number. Log No Displays the log number. Log Time Displays the time the log entry was entered.
Description Displays the log entry description.

Add Event

Event Entry Displays the event. Community Displays the community to which the event belongs. Description Displays the user-defined event description. Type Describes the event type. Possible values are:
None Indicates that no event occurred. Log Indicates that the event is a log entry. Trap Indicates that the event is a trap. Log and Trap Indicates that the event is both a log
Statistics > Port Utilization
The Port Utilization screen displays the amount of resources each interface is currently consuming. Ports in green are functioning normally, while ports in red are currently transmitting an excessive amount of network traffic.
entry and a trap. Owner Displays the device or user that defined the event. Use the Add to List button to add the configured RMON event to the Event Table at the bottom of the screen. The Event Table area contains the following additional field: Time Displays the time that the event occurred.
Refresh Rate Indicates the amount of time that passes before the port utilization statistics are refreshed. The possible field values are:
No Refresh Statistics are not refreshed. 15 Sec Statistics are refreshed every 15 seconds. 30 Sec Statistics are refreshed every 30 seconds. 60 Sec Statistics are refreshed every 60 seconds.
Statistics > 802.1x Statistics
The 802.1X Statistic screen contains information about EAP packets received on a specific port.
Statistics > GVRP Statistics
The GVRP Statistics screen contains device statistics for GVRP.

Force-Unauthorized The controlled port state is set
to Force-Unauthorized (discard traffic).
Auto The controlled port state is set by the system. Force-Authorized The controlled port state is set to
Force-Authorized (forward traffic). Enable Periodic Reauthentication Permits immediate port reauthentication.
Use the Setting Timer button to open the Setting Timer screen to configure ports for 802.1x functionality.
Security > Port Security
Network security can be increased by limiting access on a specific port only to users with specific MAC addresses. MAC addresses can be dynamically learned or statically configured. Locked port security monitors both received and learned packets that are received on specific ports. Access to the locked port is limited to users with specific MAC addresses. These addresses are either manually defined on the port, or learned on that port up to the point when it is locked. When a packet is received on a locked port, and the packet source MAC address is not tied to that port (either it was learned on a different port, or it is unknown to the system), the protection mechanism is invoked, and can provide various options. Unauthorized packets arriving at a locked port are either:
Forwarded Discarded with no trap Discarded with a trap Cause the port to be shut down.
802.1x Settings > Setting Timer
Port Indicates the port name. Reauthentication Period Specifies the number of seconds in which the selected port is reauthenticated (Range: 3004,294,967,295). The field default is 3600 seconds. Quiet Period Specifies the number of seconds that the switch remains in the quiet state following a failed authentication exchange (Range: 065,535). Resending EAP Specifies the number of seconds that the switch waits for a response to an EAP - request/identity frame, from the supplicant (client), before resending the request. Max EAP Requests Displays the total amount of EAP requests sent. If a response is not received after the defined period, the authentication process is restarted. The field default is 2 retries. Supplicant Timeout Displays the number of seconds that lapses before EAP requests are resent to the supplicant (Range: 165,535). The field default is 30 seconds. Server Timeout Specifies the number of seconds (165,535) that lapses before the switch resends a request to the authentication server. The default is 30 seconds.

Forward Forwards the packet. Discard Disable Discards the packets and shuts
down the port. The ports remains shut down until reactivated, or until the device is reset. Enable Traps When checked, indicates that traps are enabled for Multiple Hosts. Trap Frequency Defines the time period by which traps are sent to the host. The Trap Frequency (11,000,000) field can be defined only if multiple hosts are disabled. The default is 10 seconds. The table contains the following additional fields: Status Indicates the host status. If there is an asterisk (*), the port is either not linked or is down. The possible field values are: Number of Violations Indicates the number of packets that arrived on the interface in single-host mode, from a host whose MAC address is not the supplicant MAC address.
Security > Storm Control
Providing various mechanisms for determining the allocation of network resources to different handling classes, including:
The assignment of network traffic to a particular

hardware queue

The assignment of internal resources Traffic shaping
The terms Class of Service (CoS) and QoS are used in the following context: CoS provides varying Layer 2 traffic services. CoS refers to classification of traffic to traffic-classes, which are handled as an aggregate whole, with no per-flow settings. CoS is usually related to the 802.1p service that classifies flows according to their Layer 2 priority, as set in the VLAN header. QoS refers to Layer 2 traffic and above. QoS handles perflow settings, even within a single traffic class.
Port Displays the port number for which storm control is enabled. Broadcast Control Indicates whether broadcast packet types are forwarded on the specific interface. Mode Specifies the Broadcast mode currently enabled on the device. The possible field values are:
Unknown Unicast, Multicast & Broadcast Counts

QoS > CoS Settings

The CoS Settings screen contains fields for enabling or disabling CoS. In addition, the Trust mode can be selected. The Trust mode relies on predefined fields within the packet to determine the egress queue settings.
Unicast, Multicast, and Broadcast traffic. This option is not available on the SRW224G4 and SRW248G4.

Multicast

& Broadcast Counts Multicast traffic together.

Broadcast

Broadcast Only Counts only Broadcast traffic.
Rate Threshold The maximum rate (packets per second) at which unknown packets are forwarded. The default value is 3500. The range is 70100,000.
Network traffic is usually unpredictable, and the only basic assurance that can be offered is best effort traffic delivery. To overcome this challenge, Quality of Service (QoS) is applied throughout the network. This ensures that network traffic is prioritized according to specified criteria, and that specific traffic receives preferential treatment. QoS in the network optimizes network performance and entails two basic facilities: Classifying incoming traffic into handling classes, based on an attribute, including:

are displayed.

LAG Specifies the LAG for which the MSTP settings
are displayed. Port State Indicates whether the port is enabled for the specific instance. Type Indicates if the port is a point-to-point port, or a port connected to a hub. The possible field values are:
Boundary Port Indicates the port is a boundary port.
A Boundary port attaches MST bridges to LAN in an outlying region. If the port is a boundary port, it also indicates whether the device on the other side of the link is working in RSTP or STP mode.
Master Port Indicates the port is a master port. A
Master port provides connectivity from a MSTP region to the outlying CIST root.
Internal Indicates the port is an internal port.
Role Indicates the port role assigned by the STP algorithm in order to provide to STP paths. The possible field values are:

to root device.

Designated Indicates the port or LAG via which the
designated device is attached to the LAN.

WebView Switches 48

device from the root interface.
Multicast > IGMP Snooping
When Internet Group Management Protocol (IGMP) Snooping is enabled globally, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines:
Which ports want to join which Multicast groups? Which ports have Multicast routers generating IGMP
Spanning Tree. Interface Priority Defines the interface priority for specified instance. The default value is 128. Path Cost Indicates the port contribution to the Spanning Tree instance. The range should always be 1200,000,000. Designated Bridge ID Indicates that the bridge ID number that connects the link or shared LAN to the root. Designated Port ID Indicates that the Port ID number on the designated bridge that connects the link or the shared LAN to the root. Designated Cost Indicates that the default path cost is assigned according to the method selected on the Spanning Tree Global Settings screen. Forward Transitions Indicates the number of times the port has changed from Forwarding state to Blocking state. Remaining Hops Indicates the hops remaining to the next destination.

queries?

Which routing protocols are forwarding packets and
Multicast traffic? Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast group is accepting members. This results in the creation of the Multicast filtering database.
IGMP Snooping Status Indicates if IGMP Snooping is enabled on the device. IGMP Snooping can be enabled only if Bridge Multicast Filtering is enabled. VLAN ID Specifies the VLAN ID. IGMP Status Indicates if IGMP snooping is enabled on the VLAN. Auto Learn Indicates if Auto Learn is enabled on the device. If Auto Learn is enabled, the device automatically learns where other Multicast groups are located. Enables or disables Auto Learn on the Ethernet device. Host Timeout Indicates the amount of time the host waits to receive a message before timing out. The default time is 260 seconds. MRouter Timeout Indicates the amount of the time the Multicast router waits to receive a message before it times out. The default value is 300 seconds.
Leave Timeout Indicates the amount of time the host waits, after requesting to leave the IGMP group and not receiving a Join message from another station, before timing out. If a Leave Timeout occurs, the switch notifies the Multicast device to stop sending traffic The Leave Timeout value is either user-defined, or an immediate leave value. The default timeout is 10 seconds.
Interface or LAG Displays LAG that can be added to a Multicast service. The configuration options are as follows:
Static The port is user-defined. Dynamic The port is configured dynamically. Forbidden Forbidden ports are not included the
Multicast > Bridge Multicast
The Bridge Multicast screen displays the ports and LAGs attached to the Multicast service group in the Ports and LAGs tables. The Port and LAG tables also reflect the manner in which the port or LAGs joined the Multicast group. Ports can be added either to existing groups or to new Multicast service groups. The Bridge Multicast screen permits new Multicast service groups to be created. The Bridge Multicast screen also assigns ports to a specific Multicast service address group.

RADIUS (Remote Authentication Dial-In User Service) A protocol that uses an authentication server to control network access. RJ-45 (Registered Jack-45) An Ethernet connector that holds up to eight wires. RMON (Remote Monitoring) Provides network information to be collected from a single workstation. Router A networking device that connects multiple networks together. RSTP (Rapid Spanning Tree Protocol) Detects and uses network topologies that allow a faster convergence of the spanning tree, without creating forwarding loops. Server Any computer whose function in a network is to provide user access to files, printing, communications, and other services. SMTP (Simple Mail Transfer Protocol) The standard email protocol on the Internet. SNMP (Simple Network Management Protocol) A widely used network monitoring and control protocol. SSH Secure Shell. A utility that uses strong authentication and secure communications to log in to another computer over a network. SSL (Secure Socket Layer) Encryption technology for the Internet used to provide secure transactions, such as the transmission of credit card numbers for e-commerce. Static IP Address A fixed address assigned to a computer or device that is connected to a network. STP (Spanning Tree Protocol) Prevents loops in network traffic. The Spanning Tree Protocol (STP) provides tree topography for any arrangement of bridges. STP provides one path between end stations on a network, eliminating loops. Subnet (Sub-network) Subnets are portions of a network that share a common address component. In TCP/IP networks, devices that share a prefix are part of the same subnet. For example, all devices with a prefix of 157.100.100.100 are part of the same subnet. Subnet Mask An address code that determines the size of the network. Switch Filters and forwards packets between LAN segments. Switches support any packet protocol type. TACACS+ (Terminal Access Controller Access Control System Plus) Proprietary Cisco enhancement to Terminal Access Controller Access Control System (TACACS). Provides additional support for authentication, authorization, and accounting.
TCP (Transmission Control Protocol) A network protocol for transmitting data that requires acknowledgement from the recipient of data sent. TCP/IP (Transmission Control Protocol/Internet Protocol) A set of instructions PCs use to communicate over a network. Telnet A user command and TCP/IP protocol used for accessing remote PCs. TFTP (Trivial File Transfer Protocol) A version of the TCP/IP FTP protocol that has no directory or password capability. Throughput The amount of data moved successfully from one node to another in a given time period. Trunking Link Aggregation. Optimizes port usage by linking a group of ports together to form a single trunk (aggregated groups). TX Rate Transmission Rate. UDP (User Data Protocol) Communication protocol that transmits packets but does not guarantee their delivery. Upgrade To replace existing software or firmware with a newer version. Upload To transmit a file over a network. URL (Uniform Resource Locator) The address of a file located on the Internet. VLAN (Virtual Local Area Networks) Logical subgroups that constitute a Local Area Network (LAN). This is done in software rather than defining a hardware solution. WAN (Wide Area Network) Networks that cover a large geographical area. Wildcard Mask Specifies which IP address bits are used, and which bits are ignored. A wild card mask of 255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all the bits are important. For example, if the destination IP address is 149.36.184.198 and the wildcard mask is 255.36.184.00, the first two bits of the IP address are used, while the last two bits are ignored.

Dimensions H x W x D Weight Power Certification Operating Temp. Storage Temp. Operating Humidity Storage Humidity SRW224G4 - 430 x 44 x 203 mm SRW248G4 - 430 x 44 x 350 mm SRW224G4 - 4.41 lb (2 kg) SRW248G4 - 8.60 lb (3.9 kg) Internal Switching Power FCC Part15 Class A, CE Class A, UL, cUL, CE mark, CB 0 to 40C 20 to 70C 10% to 90% 10% to 95%
HOL Blocking Mini jumbo frame Dynamic VLAN Standards
Denotes features found in only version 1.1 or later of the hardware

WebView Switches 74

Appendix F
Appendix F: Warranty Information

Limited Warranty

Linksys warrants this Linksys hardware product against defects in materials and workmanship under normal use for the Warranty Period, which begins on the date of purchase by the original end-user purchaser and lasts for the period specified for this product at www.linksys.com/warranty. The internet URL address and the web pages referred to herein may be updated by Linksys from time to time; the version in effect at the date of purchase shall apply. This limited warranty is non-transferable and extends only to the original end-user purchaser. Your exclusive remedy and Linksys entire liability under this limited warranty will be for Linksys, at its option, to (a) repair the product with new or refurbished parts, (b) replace the product with a reasonably available equivalent new or refurbished Linksys product, or (c) refund the purchase price of the product less any rebates. Any repaired or replacement products will be warranted for the remainder of the original Warranty Period or thirty (30) days, whichever is longer. All products and parts that are replaced become the property of Linksys.

Warranty Information

free of vulnerability to intrusion or attack. The product may include or be bundled with third party software or service offerings. This limited warranty shall not apply to such third party software or service offerings. This limited warranty does not guarantee any continued availability of a third partys service for which this products use or operation may require. TO THE EXTENT NOT PROHIBITED BY LAW, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary by jurisdiction. TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT (INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even if any warranty or remedy provided under this limited warranty fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Original SSLeay License ----------------------Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) All rights reserved. This package is an SSL implementation written by Eric Young (eay@cryptsoft.com). The implementation was written so as to conform with Netscapes SSL. This library is free for commercial and non-commercial use as long as the following conditions are adhered to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution is covered by the same copyright terms except that the holder is Tim Hudson (tjh@cryptsoft. com). Copyright remains Eric Youngs, and as such any Copyright notices in the code are not to be removed. If this package is used in a product, Eric Young should be given attribution as the author of the parts of the library used. This can be in the form of a textual message at program startup or in documentation (online or textual) provided with the package. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes cryptographic software written by Eric Young (eay@cryptsoft.com) The word cryptographic can be left out if the routines from the library being used are not cryptographic related :-). 4. If you include any Windows specific code (or a derivative thereof ) from the apps directory (application code) you must include an acknowledgement: This product includes software written by Tim Hudson (tjh@cryptsoft.com) THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The licence and distribution terms for any publicly available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution licence [including the GNU Public Licence.] END OF SCHEDULE 3s

Appendix I

Linksys Contact Information
Website Support Site FTP Site Advice Line Support http://www.linksys.com http://www.linksys.com/support ftp.linksys.com 800-546-5797 (LINKSYS) 800-326-7114

Contact Information

RMA (Return Merchandise http://www.linksys.com/warranty Authorization)
NOTE: Details on warranty and RMA issues can be found in the Warranty section of this Guide.
8050610A-IN WebView Switches 89