Cisco SRW224P - 10/100 - Gigabit Switch User manual

A Division of Cisco Systems, Inc.
®
Model No.
WIRED
with WebView and Power over Ethernet
24-Port 10/100 + 2-Port Gigabit Switch
SRW224P
User Guide

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Copyright and Trademarks
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
How to Use This User Guide
This User Guide has been designed to make understanding networking with the Switch easier than ever. Look for
the following items when reading this User Guide:
In addition to these symbols, there are definitions for technical terms that are presented like this:
Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:
Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.
This exclamation point means there is a caution or warning and
is something that could damage your property or the Switch.
This checkmark means there is a note of interest and is something
you should pay special attention to while using the Switch.
This question mark provides you with a reminder about
something you might need to do while using the Switch.
word: definition.
Figure 0-1: Sample Figure Description
SRW224P-UG-51008 KL
WARNING: This product contains chemicals, including lead, known
to the State of California to cause cancer, and birth defects or other
reproductive harm. Wash hands after handling.

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this Guide? 2
Chapter 2: Getting to Know the Switch 3
The Front Panel 3
The Back Panel 4
The Side Panel 4
RJ-45 Ports 5
The Gigabit Expansion Ports 5
The Console Port 5
Chapter 3: Connecting the Switch 6
Overview 6
Pre-Installation Considerations 7
Hardware Installation 8
Placement Options 8
Uplinking the Switch 9
Chapter 4: Configuration using the Console Interface 10
Overview 10
Configuring the Switch through the Console Interface 11
Chapter 5: Configuring the Switch through the Web Utility 24
Overview 24
System Information 25
IP Config 31
Switch Config 33
QoS 43
DiffServ 50
Security 56
SNTP 65
Statistics 66
PoE 68
Spanning Tree 71
SNMP 75
IGMP 76
Maintenance 80

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Help 82
Appendix A: Fast Ethernet and Gigabit Ethernet 83
About Fast Ethernet 83
About Gigabit Ethernet 83
Appendix B: Cabling 84
Overview 84
Twisted Pair Cabling 84
Fiber Optic Cabling 84
Appendix C: Glossary 85
Appendix D: Specifications 88
Appendix E: Warranty Information 89
Appendix F: Regulatory Information 90
Appendix G: Contact Information 96

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
List of Figures
Figure 2-1: Front Panel 3
Figure 2-2: Back Panel 4
Figure 2-3: Side Panel 4
Figure 3-1: Typical Network Configuration 6
Figure 3-2: Attaching the Switch’s Rubber Feet 8
Figure 3-3: Attaching Brackets to the Switch 9
Figure 3-4: Mounting the Switch 9
Figure 4-1: Finding Hyperterminal 10
Figure 4-2: Connection Description 10
Figure 4-3: Password Screen 10
Figure 4-4: COM1 Properties 11
Figure 4-5: Login 11
Figure 4-6: Switch Main Menu 12
Figure 4-7: System Configuration Menu 12
Figure 4-8: System Information 13
Figure 4-9: Versions 13
Figure 4-10: General Information 13
Figure 4-11: Serial Port Configuration 14
Figure 4-12: CPU Performance 14
Figure 4-13: User and Password Settings 15
Figure 4-14: IP Configuration 16
Figure 4-15: IP Address Configuration Screen 16
Figure 4-16: HTTP 16
Figure 4-17: SNMP 17
Figure 4-18: Network Configuration/PING 17
Figure 4-19: File Management 18
Figure 4-20: Restore System Default Settings 19
Figure 4-21: Reboot System 19
Figure 4-22: Back to Main Menu 20
Figure 4-23: Port Status 21

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Figure 4-24: Port Configuration 21
Figure 4-25: PoE Main Menu 22
Figure 4-26: Power Configuration 22
Figure 4-27: Power Port Status 22
Figure 4-28: Power Port Configuration 23
Figure 4-29: Logout 23
Figure 5-1: Address Field 24
Figure 5-2: Password Screen 24
Figure 5-3: Sys. Info - System Description 24
Figure 5-4: Sys. Info - System Information 25
Figure 5-5: Sys. Info - System Mode 26
Figure 5-6: Sys. Info - Forwarding Database 27
Figure 5-7: Dynamic Address Screen 28
Figure 5-8: Static Address Screen 28
Figure 5-9: Sys. Info - Time Synchronization Screen 29
Figure 5-10: Sys. Info - CPU Performance 30
Figure 5-11: Sys. Info - Logout 30
Figure 5-12: IP Config - IP Address 31
Figure 5-13: Switch Config - Port Configuration 33
Figure 5-14: Edit Port Configuration Screen 34
Figure 5-15: Switch Config - VLAN 36
Figure 5-16: Adding/Editing VLAN Screen 37
Figure 5-17: Switch Config - VLAN Port 38
Figure 5-18: Switch Config - LAG Configuration 39
Figure 5-19: Create LAG Screen 40
Figure 5-20: LAG Broadcast Control Screen 40
Figure 5-21: VLAN LAG Configuration Screen 40
Figure 5-22: Switch Config - Port Mirroring 41
Figure 5-23: Switch Config - LACP 42
Figure 5-24: LACP Membership Screen 42
Figure 5-25: QoS - CoS Settings 44
Figure 5-26: QoS - Queue Settings 45
Figure 5-27: QoS - CoS to Queue 45

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Figure 5-28: QoS - IP Precedence/DSCP 46
Figure 5-29: QoS - IP Port 47
Figure 5-30: QoS - ACL Priority 48
Figure 5-31: QoS - Rate Limit 49
Figure 5-32: DiffServ - Diffserv Class Map 51
Figure 5-33: DiffServ Class Map - Setting Rules 51
Figure 5-34: DiffServ Class Map - Adding a Class 52
Figure 5-35: DiffServ - Diffserv Policy Map 53
Figure 5-36: DiffServ Policy Map - Adding a Policy 53
Figure 5-37: DiffServ Policy Map - Setting Rules 54
Figure 5-38: DiffServ - Diffserv Service Policy 55
Figure 5-39: Security - ACL Conf 56
Figure 5-40: ACL Conf - Adding/Editing Standard ACL 57
Figure 5-41: ACL Conf - Adding/Editing Extended ACL 57
Figure 5-42: ACL Conf - Adding/Editing MAC ACL 59
Figure 5-43: Security - ACL Port Binding 60
Figure 5-44: Security - 802.1x Users 61
Figure 5-45: Security - 802.1x Port Conf 62
Figure 5-46: Security - RADIUS Server 62
Figure 5-47: Security - Port Security 63
Figure 5-48: Security - Storm Control 63
Figure 5-49: Security - HTTPS Settings 64
Figure 5-50: Security - System Password 64
Figure 5-51: SNTP - Global Settings 65
Figure 5-52: Statistics - Interface Statistics 66
Figure 5-53: Statistics - Etherlike Statistics 67
Figure 5-54: Statistics - RMON Statistics 67
Figure 5-55: PoE - Power Config 68
Figure 5-56: PoE - Power Port Config 69
Figure 5-57: PoE - Power Port Status 69
Figure 5-58: PoE - Power Status 70
Figure 5-59: Spanning Tree - Information 72
Figure 5-60: Spanning Tree - Configuration 73

24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Figure 5-61: Spanning Tree - Port/LAG Info 73
Figure 5-62: Spanning Tree - Information 74
Figure 5-63: SNMP - SNMP Config 75
Figure 5-64: IGMP - IGMP Conf 77
Figure 5-65: IGMP - IGMP Router Info 78
Figure 5-66: IGMP - IGMP Router Conf 78
Figure 5-67: IGMP - IP Multicast Reg Table 79
Figure 5-68: IGMP - IGMP Member Conf 79
Figure 5-69: Maintenance - Reset 80
Figure 5-70: Maintenance - File Download 80
Figure 5-71: Maintenance - File Upload 81
Figure 5-72: Maintenance - Restore Defaults 81
Figure 5-73: Maintenance - Save Config 81
Figure 5-74: Maintenance - Integrated Cable Test 82
Figure 5-75: Help 82

1
Chapter 1: Introduction
Welcome
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Chapter 1: Introduction
Welcome
Thank you for choosing the 24-port 10/100 + 2-Port Gigabit Switch with WebView and Power over Ethernet. This
Switch will allow you to network better than ever.
This new Linksys rackmount Switch delivers non-blocking, wire speed switching for your 10 and 100 megabit
network clients, plus multiple options for connecting to your network backbone. Twenty-four 10/100 ports wire
up your workstations, while the two integrated 10/100/1000BaseTX ports connect to other switches and the
backbone at Gigabit speeds. And the mini-GBIC ports allow future expansion through alternate transmission
media like optical fiber.
All the 10/100 ports on this Switch support IEEE 802.3af standard (802.3af) Power-over-Ethernet (PoE)
capabilities. Each port can detect connected 802.3af-compliant network devices, such as IP phones or wireless
access points, and automatically supply the required DC power.
The Switch can provide DC power to a wide range of connected devices, eliminating the need for an additional
power source and cutting down on the amount of cables attached to each device. Once configured to supply
power, an automatic detection process is initialized by the Switch that is authenticated by a PoE signature from
the connected device. Detection and authentication prevent damage to non-PoE devices.
The Switch features WebView monitoring and configuration via your web browser, making it easy to manage the
128 VLANs and up to 4 lagging groups. Or if you prefer, you can use the integrated console port to configure the
Switch. The non-blocking, wire-speed switching forwards packets as fast as your network can deliver them.
All ports have automatic MDI/MDI-X crossover detection. Each port independently and automatically negotiates
for best speed and whether to run in half- or full-duplex mode. Head-of-line blocking prevention keeps your high-
speed clients from bogging down in lower-speed traffic and fast store-and-forward switching prevents damaged
packets from being passed on into the network.
Use the instructions in this User Guide to help you connect the Switch, set it up, and configure it to bridge your
different networks. These instructions should be all you need to get the most out of the 24-port 10/100 + 2-Port
Gigabit Switch with WebView and Power over Ethernet.

2
Chapter 1: Introduction
What’s in this Guide?
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
What’s in this Guide?
This user guide covers the steps for setting up and using the Switch.
• Chapter 1: Introduction
This chapter describes the Switch’s applications and this User Guide.
• Chapter 2: Getting to Know the Switch
This chapter describes the physical features of the Switch.
• Chapter 3: Connecting the Switch
This chapter describes how to connect the Switch.
• Chapter 4: Configuration using the Console Interface
This chapter instructs you on how to use the Switch’s console interface for configuring the Switch.
• Chapter 5: Configuring the Switch through the Web Utility
This chapter shows you how to configure the Switch using the Web Utility.
• Appendix A: Fast Ethernet and Gigabit Ethernet
This appendix describes the various types of ethernet.
• Appendix B: Cabling
This appendix discusses different types of cabling.
• Appendix C: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
• Appendix D: Specifications
This appendix provides the Switch’s technical specifications.
• Appendix E: Warranty Information
This appendix supplies the Switch’s warranty information.
• Appendix F: Regulatory Information
This appendix supplies the Switch’s regulatory information.
• Appendix G: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.

3
Chapter 2: Getting to Know the Switch
The Front Panel
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Chapter 2: Getting to Know the Switch
The Front Panel
The Switch's LEDs and ports are located on the front panel.
LEDs
System A green LED indicates that power is being supplied to the Switch. A solid, amber
LED indicates that the Switch’s power-on-self-test (POST) is in progress, but
when this blinks amber that indicates that the POST has failed.
Link/Act A green LED indicates a functional network link through the corresponding port
(1 through 26) with an attached device. A blinking LED indicates that the Switch
is actively sending or receiving data over that port.
PoE A green LED indicates a powered device is connected to the corresponding port
(1 through 24).
Speed A green LED indicates a link to the corresponding port (Gigabit ports 25 and 26) is
operating at 1000Mbps. No light indicates either no link or a link operating at a
speed of 10/100Mbps.
Figure 2-1: Front Panel

4
Chapter 2: Getting to Know the Switch
The Back Panel
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Ports
LAN (1-24) The LAN ports connect to Ethernet network devices, such as other switches or
routers.
Gigabit1 (25)/Gigabit 2 (26) The Switch is equipped with two Gigabit RJ-45 ports that are shared with two
mini-GBIC ports. If a Gigabit mini-GBIC port is being used, the associated RJ-45
port cannot be used. They link to high-speed network peripheral system or
clients at speeds of up to 1000Mbps.
Console The Console port is where you connect a serial cable from a PC’s serial port.
The Back Panel
The power port is located on the back panel.
Power The Power port is where you will connect the power cord.
The Side Panel
A security slot, where you can attach a lock to protect the Switch, is located on a side panel.
Figure 2-2: Back Panel
Figure 2-3: Side Panel

5
Chapter 2: Getting to Know the Switch
RJ-45 Ports
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
RJ-45 Ports
The Switch is equipped with 24 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.
The Switch’s RJ-45 ports also support the IEEE 802.3af Power-over-Ethernet (PoE) standard that enables DC
power to be supplied to attached devices using wires in the connecting twisted-pair cable. Any 802.3af-
compliant device attached to a port can directly draw power from the Switch over the twisted-pair cable without
requiring its own separate power source. This capability gives network administrators centralized power control
for devices such as IP phones and wireless access points, which translates into greater network availability.
For each attached 802.3af-compliant device, the Switch automatically senses the load and dynamically supplies
the required power. The Switch delivers power to a device using the two data wire pairs in the twisted-pair cable.
Each port can provide up to 15.4 W of power at the standard -48 VDC voltage.
To connect a device to a port, you will need to use a network cable. You will need to use Category 5 (or better)
cable. For more information on twisted-pair cabling, refer to Appendix B: Cabling.
The Gigabit Expansion Ports
The Switch is equipped with two Gigabit Ethernet ports that have shared mini-GBIC ports, which provide for the
installation of one expansion module. 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 using a mini-GBIC port, you will need to install an MGBT1, MGBSX1, or
MGBLH1 Gigabit expansion module and use Category 5e cabling or fiber optic cabling. For more information on
fiber optic cabling, refer Appendix B: Cabling
The Console Port
The Switch is equipped with a serial port labeled CONSOLE (located on the front of the Switch) that allows you to
connect to a computer’s serial port (for configuration purposes) using the provided serial cable. You can use
HyperTerminal to manage the Switch using the console port.
With this and many other Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about products that work with the Switch.

6
Chapter 3: Connecting the Switch
Overview
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Chapter 3: Connecting the Switch
Overview
This chapter will explain how to connect network devices to the Switch. The following diagram shows a typical
network configuration.
When you connect your network devices, make sure you don’t exceed the maximum cabling distances, which are
listed in the following table:
Maximum Cabling Distances
*A hub refers to any type of 100Mbps hub. A 10Mbps hub connected to another 10Mbps hub can span up to 100
meters (328 feet).
From To Maximum Distance
Switch Switch or Hub 100 meters (328 feet)
Hub Hub 5 meters (16,4 feet)
Switch or Hub Computer 100 meters (328 feet)
Figure 3-1: Typical Network Configuration

7
Chapter 3: Connecting the Switch
Pre-Installation Considerations
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Pre-Installation Considerations
Fast Ethernet Considerations
If you will be using the Switch for Fast Ethernet (100Mbps) applications, you must observe the following
guidelines:
Full-Duplex
As previously mentioned, the Switch provides full-duplex support for its RJ-45 ports. Full-duplex operation allows
data to be sent and received simultaneously, doubling a port’s potential data throughput.
If you will be using the Switch in full-duplex mode, the maximum cable length using Category 5 cable is 328 feet
(100 meters).
Positioning the Switch
Before you choose a location for the Switch, observe the following guidelines:
1. Make sure that the Switch is accessible and that the cables can be connected easily.
2. Keep cabling away from sources of electrical noise, power lines, and fluorescent lighting fixtures.
3. Position the Switch away from water and moisture sources.
4. To ensure adequate air flow around the Switch, be sure to provide a minimum clearance of two inches
(50mm).
5. Do not stack free-standing Switches more than four units high.
6. Connect Network Devices

8
Chapter 3: Connecting the Switch
Hardware Installation
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Hardware Installation
To connect network devices to the Switch, follow these instructions:
1. Make sure all the devices you will connect to the Switch are powered off.
2. Connect a Category 5 Ethernet network cable to one of the numbered ports on the Switch.
3. Connect the other end to a PC or other network device.
4. Repeat steps 2 and 3 to connect additional devices. If 802.3af-compliant PoE devices are connected to the
Switch’s 10/100 ports, the Switch automatically supplies the required power.
5. If you are using the Gigabit port, connect a Category 5e Ethernet network cable to the Gigabit port on the
Switch, and connect the other end to a Gigabit server or other network device.
6. If you are using a mini-GBIC port, then connect a mini-GBIC module to the mini-GBIC port. For detailed
instructions, refer to the module’s documentation.
7. Connect the supplied power cord to the Switch’s power port, and plug the other end into an electrical outlet.
When connecting power, always use a surge protector.
8. Power on the devices connected to the Switch. Each active port’s corresponding LED will light up on the
Switch.
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
1. Attach the rubber feet to the recessed areas on the bottom of the Switch.
2. Place the Switch on a desktop near an AC power source.
3. Keep enough ventilation space for the Switch and check the environmental restrictions mentioned in
Appendix D: Specifications as you are placing the Switch.
4. Connect the Switch to network devices according to the Hardware Installation instructions above.
IMPORTANT: Make sure to use the power cord that is
supplied with the Switch. Use of a different power
cord could damage the Switch.
NOTE: If you need to reset the Switch, remove the
power cord from the back of the Switch and then
reconnect it.
Figure 3-2: Attaching the Switch’s Rubber Feet

9
Chapter 3: Connecting the Switch
Uplinking the Switch
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Rack-Mount Placement
To rack-mount the Switch in any standard 19-inch rack, follow the instructions described below.
1. Place the Switch on a hard flat surface with the front panel faced towards your front side
2. Attach a rack–mount bracket to one side of the Switch with the supplied screws.
3. Secure the brackets tightly.
4. Follow the same steps to attach the other bracket to the opposite side.
5. After the brackets are attached to the Switch, use suitable screws to securely attach the brackets to any
standard 19-inch rack.
6. Connect the Switch to network devices according to the Hardware Installation instructions above.
Uplinking the Switch
To uplink the Switch, connect one end of a Cat5 (or better) cable into one of the 24 10/100 ports, and then
connect the other end of the cable into the peripheral device’s uplink port. MDI/MDIX will automatically detect the
speed and cable type.
The hardware installation is complete. Proceed to Chapter 4: Configuration using the Console Interface, for
directions on how to set up the Switch.
IMPORTANT: Make sure to use the power cord that is
supplied with the Switch. Use of a different power
cord could damage the Switch.
Figure 3-3: Attaching Brackets to the Switch
Figure 3-4: Mounting the Switch

10
Chapter 4: Configuration using the Console Interface
Overview
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Chapter 4: Configuration using the
Console Interface
Overview
The Switch features a menu-driven console interface for basic configuration. You can easily manage your
network from the screens through the console port. Before you can use the console interface, you will need to
configure the HyperTerminal application.
Configuring the HyperTerminal Application
1. Click the Start button. Select Accessories and then select Communications. HyperTerminal should be one
of the options listed in the next menu. Select HyperTerminal to run the utility program.
2. Enter a name for this connection. In the example shown, the name of connection is SRW224P. Select an icon
for the application. Click OK.
3. Select a port to communicate with the Switch. Select COM1 or COM2.
4. Set the serial port settings, as follows, then click OK. These settings should be:
• Bits per Second: 38400
• Databits: 8
• Parity: None
• Stop bits: 1
• Flow control: None
Figure 4-1: Finding Hyperterminal
Figure 4-2: Connection Description
Figure 4-3: Password Screen

11
Chapter 4: Configuration using the Console Interface
Configuring the Switch through the Console Interface
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Configuring the Switch through the Console Interface
Login
When you finish configuring HyperTerminal, the Login screen will appear. The first time you open the console
interface, use the default username admin, and leave the password blank. You can set a new password later
from the Password Setting screen.
Switch Screens
The console interface screens consist of a series of menus. Each menu has several options, which are listed
vertically. A highlight in each menu 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, or use the
number keys to select the respective option (for example, press the 5key to highlight help) use the Enter key to
select, and the Esc key to return to the previous selection; menu options and any values entered or present will
get highlighted. The bottom of the window always has a listing of the appropriate key strokes.
Figure 4-4: COM1 Properties
Figure 4-5: Login

12
Chapter 4: Configuration using the Console Interface
Configuring the Switch through the Console Interface
24-Port 10/100 + 2-Port Gigabit Switch with Webview and Power over Ethernet
Switch Main Menu
The Main Menu screen displays six menu choices: System Configuration Menu, Port Status, Port Configuration,
PoE Configuration, Help, and Logout.
System Configuration Menu
System Configuration Menu displays:
1. System Configuration
2. Management Settings
3. User and Password Settings
4. IP Configuration
5. File Management
6. Restore System Default Setting
7. Reboot System
8. Back to Main Menu.
Figure 4-7: System Configuration Menu
Figure 4-6: Switch Main Menu