Linksys SRW2016 User manual

A Division of Cisco Systems, Inc.
®
Model No.
WIRED with WebView
16, 24, or 48-Port 10/100/1000 Gigabit Ethernet Switch
SRW2016/SRW2024/SRW2048/SRW224G4/SRW248G4
User Guide
24 or 48-Port 10/100 Fast Ethernet Switch

WebView Switches
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
The User Guide to the WebView Switches 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.
This exclamation point means there is a caution or
warning and is something that could damage your
property or the Switch.
word: definition.
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.
Figure 0-1: Sample Figure Description
Webview Switches-UG-50817 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.

WebView Switches
Table of Contents
Chapter 1: Introduction 1
Welcome 1
What’s in this User Guide? 2
Chapter 2: Getting to Know the Switch 3
Overview 3
The Front Panel 3
The Back Panel 4
Chapter 3: Connecting the Switch 5
Overview 5
Before You Install the Switch... 6
Placement Options 6
Connecting the Switch 7
Chapter 4: Using the Console Interface for Configuration 9
Overview 9
Configuring the HyperTerminal Application 9
Connecting to the Switch through a Telnet Session 10
Configuring the Switch through the Console Interface 11
Chapter 5: Using the Web-based Utility for Configuration 20
Overview 20
Accessing the Web-based Utility 20
Sys. Info. (System Information) Tab - System Description 21
Sys. Info. (System Information) Tab - System Mode 21
Sys. Info. (System Information) Tab - Forwarding Database 22
Sys. Info. (System Information) Tab - Time Synchronization 23
IP Conf. (Configuration) Tab - IP Addr. (Address) 24
Switch Conf. (Configuration) Tab - Interface Conf. (Configuration) 25
Switch Conf. (Configuration) Tab - VLAN 28
Switch Conf. (Configuration) Tab - VLAN Interface Settings 29
Switch Conf. (Configuration) Tab - GVRP Parameters 30
Switch Conf. (Configuration) Tab - LAG Conf. (Configuration) 31
Switch Conf. (Configuration) Tab - Port Mirroring 32
Switch Conf. (Configuration) Tab - LACP 33

WebView Switches
Switch Conf. (Configuration) Tab - IGMP Snooping 34
Switch Conf. (Configuration) Tab - Bridge Multicast 35
Switch Conf. (Configuration) Tab - Bridge Multicast Forward All 36
QoS Tab - CoS Settings 37
QoS Tab - Queue Settings 38
QoS Tab - CoS to Queue 38
QoS Tab - Bandwidth 39
Security Tab - Local Users/System Password 40
Security Tab - 802.1x Users 40
Security Tab - 802.1x Port Conf. (Configuration) 41
Security Tab - RADIUS Server 43
Security Tab - Storm Control 45
Security Tab - Authenticated Users 45
Security Tab for SRW2048 Switches - ACL 46
Security Tab for SRW2048 Switches - Profile Rules 47
Security Tab for Other Switches - ACL 51
Security Tab for Other Switches - MAC Based ACL 52
Security Tab for Other Switches - ACL Mapping 53
SNTP Tab - Global Settings 54
SNTP Tab - Authentication 55
SNTP Tab - Servers 56
SNTP Tab - Interface Settings 57
Statistics Tab - Interface Statistics 58
Statistics Tab - Etherlike Statistics 59
Statistics Tab - RMON Statistics 60
Statistics Tab - RMON History Control 62
Statistics Tab - RMON History Log 63
Statistics Tab - RMON Alarms 64
Statistics Tab - RMON Events Control 66
Statistics Tab - RMON Events Log 67
Statistics Tab - EAP Statistics 68
Statistics Tab - GVRP Statistics 69
Logs Tab - Message Log 70
Logs Tab - Event Log 70
Logs Tab - Global Parameters 71
SNMP Tab 72

WebView Switches
Maintenance Tab - Telnet 82
Maintenance Tab - Reset 82
Maintenance Tab - File Download 82
Maintenance Tab - File Upload 83
Maintenance Tab - Restore Defaults 84
Maintenance Tab - Integrated Cable Test 84
Maintenance Tab - HTTP File Download 85
Spanning Tree Tab - Global Settings 86
Spanning Tree Tab - STP Interface Settings 88
Spanning Tree Tab on SRW2048 Switches - RSTP Interface Settings 90
Spanning Tree Tab on SRW2048 Switches - MSTP Properties 92
Spanning Tree Tab on SRW2048 Switches - MSTP Instance Settings 93
Spanning Tree Tab on SRW2048 Switches - MSTP Interface Settings 94
Help Tab 95
Appendix A: About Gigabit Ethernet and Fiber Optic Cabling 96
Gigabit Ethernet 96
Fiber Optic Cabling 96
Appendix B: Windows Help 97
Appendix C: Glossary 98
Appendix D: Specifications 103
Appendix E: Warranty Information 105
Appendix F: Regulatory Information 106
Appendix G: Contact Information 107

WebView Switches
List of Figures
Figure 2-1: Front Panel of the 16-Port Switch 3
Figure 2-2: Back Panel of the 16-Port Switch 4
Figure 3-1: Typical Network Configuration for the 16-Port Switch 5
Figure 3-2: Attach the Brackets to the Switch 7
Figure 3-3: Mount the Switch in the Rack 7
Figure 4-1: Finding HyperTerminal 9
Figure 4-2: Connection Description 9
Figure 4-3: Connect To 9
Figure 4-4: COM1 Properties 10
Figure 4-5: Telnet Login screen 10
Figure 4-6: Switch Main Menu 11
Figure 4-7: Port Status 11
Figure 4-8: Port Configuration 12
Figure 4-9: System Configuration Menu 12
Figure 4-10: System Information Menu 13
Figure 4-11: Versions 13
Figure 4-12: General System Information 13
Figure 4-13: Management Settings Menu 14
Figure 4-14: Serial Port Configuration 14
Figure 4-15: Telnet Configuration 14
Figure 4-16: Username & Password Settings 15
Figure 4-17: Security Settings 15
Figure 4-18: SSL Certificate Generation 16
Figure 4-19: SSL Certificate 16
Figure 4-20: IP Configuration 16
Figure 4-21: IP Address Configuration 17
Figure 4-22: HTTP 17
Figure 4-23: HTTPS Configuration 17

WebView Switches
Figure 4-24: Network Configuration 18
Figure 4-25: Ping Test 18
Figure 4-26: TraceRoute Test 18
Figure 4-27: File Management 19
Figure 4-28: Restore System Default Settings 19
Figure 4-29: Reboot System 19
Figure 5-1: Login Screen 20
Figure 5-2: System Information - System Description 21
Figure 5-3: System Information - System Mode 21
Figure 5-4: System Information - Forwarding Database 22
Figure 5-5: Forwarding Database - Add Entry 22
Figure 5-6: System Information - Time Synchronization 23
Figure 5-7: IP Configuration - IP Address 24
Figure 5-8: Switch Configuration - Interface Configuration 25
Figure 5-9: Interface Configuration - Change Settings 26
Figure 5-10: Switch Configuration - VLAN 28
Figure 5-11: Switch Configuration - Create VLAN 28
Figure 5-12: Switch Configuration - VLAN Interface Settings 29
Figure 5-13: Switch Configuration - edit VLAN Interface Settings 29
Figure 5-14: Switch Configuration - GVRP Parameters 30
Figure 5-15: Switch Configuration - PVE Mapping 30
Figure 5-16: Switch Configuration - LAG Configuration 31
Figure 5-17: Switch Configuration - edit LAG Configuration 31
Figure 5-18: Switch Configuration - Port Mirroring 32
Figure 5-19: Switch Configuration - LACP 33
Figure 5-20: LACP - Change Settings 33
Figure 5-21: Switch Configuration - IGMP Snooping 34
Figure 5-22: Switch Configuration - Edit IGMP Snooping 34
Figure 5-23: Switch Configuration - Bridge Multicast 35
Figure 5-24: Switch Configuration - Edit Bridge Multicast 35

WebView Switches
Figure 5-25: Switch Configuration - Bridge Multicast Forward All 36
Figure 5-26: QoS - CoS Settings 37
Figure 5-27: QoS - Queue Settings 38
Figure 5-28: QoS - CoS to Queue 38
Figure 5-29: QoS - Bandwidth 39
Figure 5-30: QoS - Edit Bandwidth 39
Figure 5-31: Security - Local Users/System Password 40
Figure 5-32: Security - Edit Local Users/System Password 40
Figure 5-33: Security - 802.1x Users 40
Figure 5-34: Security - 802.1x Port Configuration 41
Figure 5-35: 802.1x Port Configuration - Change Settings 42
Figure 5-36: Security - RADIUS Server 43
Figure 5-37: Security - Add RADIUS Servers 43
Figure 5-38: Security - Storm Control 45
Figure 5-39: Security - Authenticated Users 45
Figure 5-40: SRW2048 Switch Security - ACL 46
Figure 5-41: SRW2048 Switch Security - create ACL profile 46
Figure 5-42: SRW2048 Switch Security - Profile Rules 47
Figure 5-43: SRW2048 Switch Security - Authentication Profiles 48
Figure 5-44: SRW2048 Switch Security - Authentication Mapping 49
Figure 5-45: SRW2048 Switch Security - TACACS+ 50
Figure 5-46: Fast Ethernet Security - ACL 51
Figure 5-47: Fast Ethernet Security - create ACL Profile 51
Figure 5-48: Fast Ethernet Security - MAC Based ACL 52
Figure 5-49: Fast Ethernet Security - ACL Mapping 53
Figure 5-50: SNTP - Global Settings 54
Figure 5-51: SNTP - Authentication 55
Figure 5-52: SNTP - Servers 56
Figure 5-53: SNTP - Interface Settings 57
Figure 5-54: Statistics - Interface Statistics 58

WebView Switches
Figure 5-55: Statistics - Etherlike Statistics 59
Figure 5-56: Statistics - RMON Statistics 60
Figure 5-57: Statistics - RMON History Control 62
Figure 5-58: Statistics - RMON History Log 63
Figure 5-59: Statistics - RMON Alarms 64
Figure 5-60: Statistics - add RMON Alarm entry 65
Figure 5-61: Statistics - RMON Events Control 66
Figure 5-62: Statistics - RMON Events Log 67
Figure 5-63: Statistics - EAP Statistics 68
Figure 5-64: Statistics - GVRP Statistics 69
Figure 5-65: Logs - Message Log 70
Figure 5-66: Logs - Event Log 70
Figure 5-67: Logs - Global Parameters 71
Figure 5-68: SNMP - Global Parameters 73
Figure 5-69: SNMP - Views 74
Figure 5-70: SNMP - Group Profile 75
Figure 5-71: SNMP - add Group Profile 76
Figure 5-72: SNMP - Group Membership 77
Figure 5-73: SNMP - add Group Membership 78
Figure 5-74: SNMP - Communities 78
Figure 5-75: SNMP - Properties 79
Figure 5-76: SNMP - Notification Filter 80
Figure 5-77: SNMP - Notification Receiver 81
Figure 5-78: Maintenance - Telnet 82
Figure 5-79: Maintenance - Reset 82
Figure 5-80: Maintenance - File Download 82
Figure 5-81: Maintenance - File Upload 83
Figure 5-82: Maintenance - Restore Defaults 84
Figure 5-83: Maintenance - Integrated Cable Test 84
Figure 5-84: Integrated Cable Test - Perform Test 85

WebView Switches
Figure 5-85: Maintenance - HTTP File Download 85
Figure 5-86: Spanning Tree - Global Settings 86
Figure 5-87: Spanning Tree - STP Interface Settings 88
Figure 5-88: Spanning Tree - RSTP Interface Settings 90
Figure 5-89: Spanning Tree - MSTP Properties 92
Figure 5-90: Spanning Tree - MSTP Instance Settings 93
Figure 5-91: Spanning Tree - MSTP Interface Settings 94

1
Chapter 1: Introduction
Welcome
WebView Switches
Chapter 1: Introduction
Welcome
Thank you for choosing a WebView Switch. This Switch will allow you to network better than ever.
This new Linksys rackmount switch delivers non-blocking, wire speed switching for your 10, 100, and 1000Mbps
network clients, plus multiple options for connecting to your network backbone. 16 or 24, 10/100/1000 ports wire
up your workstations or connect to other switches and the backbone. And the mini-GBIC ports allow future
expansion to alternate transmission media, such as fiber optic cabling.
The Switch features WebView monitoring and configuration via your web browser, making it easy to manage your
VLANs and trunking groups. Or if you prefer, you can use the Switch’s console interface to configure the Switch.
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 Switch.

2
Chapter 1: Introduction
What’s in this User Guide?
WebView Switches
What’s in this User 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 explains how to install and connect the Switch.
• Chapter 4: Using the Console Interface for Configuration
This chapter instructs you on how to use the Switch’s console interface when you configure the Switch.
• Chapter 5: Using the Web-based Utility for Configuration
This chapter shows you how to configure the Switch using the Web-based Utility.
• Appendix A: About Gigabit Ethernet and Fiber Optic Cabling
This appendix gives a general description of Gigabit Ethernet and fiber optic cabling.
• Appendix B: Windows Help
This appendix describes how you can use Windows Help for instructions about networking, such as installing
the TCP/IP protocol.
• 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
Overview
WebView Switches
Chapter 2: Getting to Know the Switch
Overview
The Switches differ in number and types of LEDs and ports. While the 16-Port Gigabit Ethernet Switch is pictured
in this chapter, the other Switches are similar in form and function.
The Front Panel
The Switch's LEDs and ports are located on the front panel.
LEDs
SYSTEM Green. The SYSTEM LED lights up to indicate that the Switch is powered on.
Link/Act Green. The Link/Act LED lights up to indicate a functional network link through the
corresponding port (1 through 16, 24, or 48) with an attached device. It flashes to indicate
that the Switch is actively sending or receiving data over that port.
Gigabit Orange. The Gigabit LED lights up to indicate a Gigabit connection on the corresponding
port (1 through 16, 24, or 48).
Ports
1-48 The Switch is equipped with 16, 24, or 48 auto-sensing, Ethernet network ports, which use
RJ-45 connectors. The Fast Ethernet ports support network speeds of 10Mbps or
100Mbps, while the Gigabit Ethernet ports support network speeds of 10Mbps, 100Mbps,
and 1000Mbps. They 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,
100Mbps, or 1000Mbps), and adjust its speed and duplex accordingly.
Figure 2-1: Front Panel of the 16-Port Switch

4
Chapter 2: Getting to Know the Switch
The Back Panel
WebView Switches
For the 16-Port Switch, ports 8 and 16 are shared with miniGBIC1 and miniGBIC2,
respectively. For the 24-Port Gigabit Ethernet Switch, ports 12 and 24 are shared with
miniGBIC1 and miniGBIC2, respectively.
miniGBIC1/2 The Switch provides two mini-GBIC ports. The mini-GBIC (gigabit interface converter) port
is a connection point for a mini-GBIC expansion module, so the Switch can be uplinked via
fiber to another switch. Each mini-GBIC port provides a link to a high-speed network
segment or individual workstation at speeds of up to 1000Mbps.
Use the Linksys MGBT1, MGBSX1, or MGBLH1 mini-GBIC modules with the Switch. The
MGBSX1 and the MGBLH1 require fiber cabling with LC connectors, while the MGBT1
requires a Category 5e Ethernet cable with an RJ-45 connector.
Console The Console port is where you can connect a serial cable to a PC’s serial port for
configuration using your PC’s HyperTerminal program. Refer to Chapter 4: Using the
Console Interface for Configuration for more information.
The Back Panel
The power port is located on the back panel of the Switch.
Power The Power port is where you will connect the power cord.
Figure 2-2: Back Panel of the 16-Port Switch
NOTE: If you need to reset the Switch, unplug the power cord from the back
of the Switch. Wait a few seconds and then reconnect it.
NOTE: If shared ports are both connected, then the miniGBIC port has priority.

5
Chapter 3: Connecting the Switch
Overview
WebView Switches
Chapter 3: Connecting the Switch
Overview
This chapter will explain how to connect network devices to the Switch. For an example of a typical network
configuration, see the application diagram shown below.
When you connect your network devices, make sure you don’t exceed the maximum cabling distances, which are
listed in the following table:
*A hub refers to any type of 100Mbps hub, including regular hubs and stackable hubs. A 10Mbps hub connected
to another 10Mbps hub can span up to 100 meters (328 feet).
Table 1: Maximum Cabling Distances
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 for the 16-Port Switch

6
Chapter 3: Connecting the Switch
Before You Install the Switch...
WebView Switches
Before You Install the Switch...
When you choose a location for the Switch, observe the following guidelines:
• Make sure that the Switch will be accessible and that the cables can be easily connected.
• 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
(50 mm).
• Do not stack free-standing Switches more than four units high.
Placement Options
Before connecting cables to the Switch, first you will 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 wide, 1U 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 the
specifications.
4. Proceed to the section, “Connecting the Switch.”

7
Chapter 3: Connecting the Switch
Connecting the Switch
WebView Switches
Rack-Mount Placement
To mount the Switch in any standard-sized, 19-inch wide, 1U high rack, follow these instructions:
1. Place the Switch on a hard flat surface with the front panel facing you.
2. Attach a rack–mount bracket to one side of the Switch with the supplied screws. Then attach the other
bracket to the other side.
3. Make sure the brackets are properly attached to the Switch.
4. Use the appropriate screws (not included) to securely attach the brackets to your rack.
5. Proceed to the section, “Connecting the Switch.”
Connecting the Switch
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. For a 10/100Mbps devices, connect a Category 5 Ethernet network cable to one of the numbered ports on the
Switch. For a 1000Mbps device, connect a Category 5e 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.
5. If you are using the mini-GBIC port, then connect the mini-GBIC module to the mini-GBIC port. For detailed
instructions, refer to the module’s documentation.
6. If you will use the Switch’s console interface to configure the Switch, then connect the supplied serial cable
to the Switch’s Console port, and tighten the captive retaining screws. Connect the other end to your PC’s
serial port. (This PC must be running the VT100 terminal emulation software, such as HyperTerminal.)
7. Connect the supplied power cord to the Switch’s power port, and plug the other end into an electrical outlet.
Figure 3-2: Attach the Brackets to the Switch
NOTE: If you need to reset the Switch, unplug the
power cord from the back of the Switch. Wait a
few seconds and then reconnect it.
IMPORTANT: Make sure you use the power cord that is supplied with the Switch. Use of a
different power cord could damage the Switch.
IMPORTANT: Make sure you use the screws
supplied with the mounting brackets. Using the
wrong screws could damage the Switch and would
invalidate your warranty.
Figure 3-3: Mount the Switch in the Rack

8
Chapter 3: Connecting the Switch
Connecting the Switch
WebView Switches
8. Power on the network devices connected to the Switch. Each active port’s corresponding Link/Act LED will
light up on the Switch. If a port has an active Gigabit connection, then its corresponding Gigabit LED will also
light up.
If you will use the Switch’s console interface to configure the Switch, proceed to Chapter 4: Using the
Console Interface for Configuration for directions.
If you will use the Switch’s Web-based Utility to configure the Switch, proceed to Chapter 5: Using the
Web-based Utility for Configuration.

9
Chapter 4: Using the Console Interface for Configuration
Overview
WebView Switches
Chapter 4: Using the Console Interface for Configuration
Overview
The Switch features a menu-driven console interface for basic configuration of the Switch and management of
your network. The Switch can be configured using CLI through the console interface or through a telnet
connection. This chapter describes console interface configuration. Configuration can also be performed through
the web utility, which is covered in the next chapter.
Configuring the HyperTerminal Application
Before you use the console interface, you will need to configure the HyperTerminal application on your PC.
1. Click the Start button. Select Programs and choose Accessories. Select Communications. Select
HyperTerminal from the options listed in this menu.
2. On the Connection Description screen, enter a name for this connection. In the example, the name of
connection is SRW2016. Select an icon for the application. Then, click the OK button.
3. On the Connect To screen, select a port to communicate with the Switch: COM1, COM2, or TCP/IP.
Figure 4-2: Connection Description
Figure 4-1: Finding HyperTerminal
Figure 4-3: Connect To

10
Chapter 4: Using the Console Interface for Configuration
Connecting to the Switch through a Telnet Session
WebView Switches
4. Set the serial port settings as follows:
Bits per second: 38400
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
Then, click the OK button.
Connecting to the Switch through a Telnet Session
Open a command line editor and enter telnet 192.168.1.254. Then, press the Enter key.
The Login screen will now appear. The first time you open the CLI interface, select Edit and enter admin in the
User Name field. Leave the Password field blank.
Press the Esc button and you will return to the login screen. Then, select Enter to enter the CLI interface.
Figure 4-4: COM1 Properties
Figure 4-5: Telnet Login screen