Linksys MGBLH1 - Gigabit LH Mini-GBIC SFP... User manual

USER GUIDE
BUSINESS SERIES
24- or 48-Port 10/100 +
4-Port Gigabit Switch
with WebView and
Power over Ethernet
Model: SRW224G4P/SRW248G4P

Table of Contents
24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 1
Chapter 2: About This Guide . . . . . . . . . . . . . . . . . . . . . . 4
Icon Descriptions 4
Online Resources 4
Copyright and Trademarks 5
Chapter 3: Introduction . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 4: Getting to Know the Switch . . . . . . . . . . . . . . . . . 8
Front Panels 8
Ports 9
The Back Panel 9
The Side Panel 10
LAN Ports 10
The Gigabit Expansion Ports 10
The Console Port 11
Chapter 5: Connecting the Switch . . . . . . . . . . . . . . . . . . 12
Overview 12
Before You Install the Switch... 13
Placement Options 13
Connecting the Switch 14
Uplinking the Switch 15
Chapter 6: Using the Console Interface for Configuration . . . . . . 16
Overview 16
Configuring the HyperTerminal Application 16
Connecting to the Switch through a Telnet Session 17
Configuring the Switch through the Console Interface 18
Chapter 7: Using the Web-based Utility for Configuration . . . . . . 31
Overview 31
Accessing the Web-based Utility 31
Setup Tab—Summary 32
Setup Tab—Network Settings 34
Setup Tab—Time 35
Port Management Tab—Port Settings 37
Port Management Tab—Link Aggregation 40
Port Management Tab—LACP 41
Port Management Tab -PVE Mapping 43
Port Management Tab—PoE Power Settings 43
VLAN Management Tab—Create VLAN 45
VLAN Management Tab—Port Settings 46
VLAN Management Tab—Ports to VLAN 47
VLAN Management Tab—VLAN to Ports 48
VLAN Management Tab—GVRP 49
Statistics Tab—RMON Statistics 51
Statistics Tab—RMON History 53
Statistics Tab—RMON Alarms 54
Statistics Tab—RMON Events 56
Statistics Tab—Port Utilization 58

Table of Contents
24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 2
Statistics Tab—802.1x Statistics 59
ACL Tab—IP Based ACL 60
ACL Tab—IPv6 Based ACL 63
ACL Tab—MAC Based ACL 64
ACL Tab—TCAM Utilization 65
Security Tab—ACL Binding 65
Security Tab—Authentication Servers 66
Security Tab—802.1x Settings 68
Security Tab—Port Security 70
Security Tab—HTTPS Settings 72
Security Tab—Management ACL 73
Security Tab—Dynamic VLAN 74
Security Tab—Network Access MAC Address 75
Security Tab—SSH Settings 76
Security Tab—SSH Host-Key Settings 77
QoS Tab 78
QoS Tab—CoS Settings 78
QoS Tab—Queue Settings 80
QoS Tab—DSCP Settings 81
QoS Tab—Diffserv Settings 82
QoS Tab—Diffserv Port Binding 85
Click Save Settings to save the changes. 86
QoS Tab—Bandwidth 86
Spanning Tree Tab 87
Spanning Tree Tab—STP Status 87
Spanning Tree Tab—Global STP 89
Spanning Tree Tab—STP Port Settings 90
Spanning Tree Tab—RSTP Port Settings 93
Spanning Tree Tab—MSTP Properties 95
Spanning Tree Tab—MSTP Instance Settings 95
Spanning Tree Tab—MSTP Interface Settings 97
Multicast Tab—Global Settings 99
Multicast Tab—Static Member Ports 100
Multicast Tab—Static Router Ports 100
Multicast Tab—Member Ports Query 102
Multicast Tab—Router Ports Query 103
SNMP Tab 103
SNMP Tab—Global Parameters 104
SNMP Tab—Views 106
SNMP Tab—Group Profile 107
SNMP Tab—Group Membership 107
SNMP Tab—Communities 109
SNMP Tab—Notification Recipient 110
Admin Tab—User Authentication 111
Admin Tab—Forwarding Database 113
Admin Tab—Log 115
Admin Tab—Port Mirroring 118
Admin Tab—Cable Test 119
Admin Tab—Ping 120
Admin Tab—Save Configuration 121
Admin Tab—Jumbo Frame 121

Table of Contents
24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 3
Admin Tab—Firmware Upgrade 123
Admin Tab—HTTP Upgrade 124
Admin Tab—Reboot 125
Admin Tab—Factory Default 126
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . 127
Appendix B: Warranty Information . . . . . . . . . . . . . . . . . 133
Limited Warranty 133
Exclusions and Limitations 133
Obtaining Warranty Service 134
Technical Support 134
Appendix C: Regulatory Information . . . . . . . . . . . . . . . . 135
Federal Communications Commission Interference Statement 135
Industry Canada Statement 135
Règlement d’Industry Canada 135
EC Declaration of Conformity (Europe) 136
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste
Electric and Electronic Equipment (WEEE) 136
Appendix D: Safety Information . . . . . . . . . . . . . . . . . . 143
Meaning of the Warning Symbol 143
General Safety Information 143
Power Safety Information 144
Appendix E: Software License Agreement . . . . . . . . . . . . . 146
Software in Linksys Products: 146
Software Licenses: 146
Schedule 1 Linksys Software License Agreement 146
Schedule 2 148
Schedule 3 153
Appendix F: Contacts. . . . . . . . . . . . . . . . . . . . . . . . 156
Appendix G: Gigabit Ethernet and Fiber Optic Cabling . . . . . . . 157
Gigabit Ethernet 157
Fiber Optic Cabling 157
Appendix H: Windows Help. . . . . . . . . . . . . . . . . . . . . 158
TCP/IP 158
Shared Resources 158
Network Neighborhood/My Network Places 158
Appendix I: Downloading using Xmodem . . . . . . . . . . . . . 159
Startup Menu Procedures 159
Appendix J: Glossary . . . . . . . . . . . . . . . . . . . . . . . . 162

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 4
Icon Descriptions
About This Guide
About This Guide
Icon Descriptions
While reading through the User Guide you may see various icons that call attention to specific
items. Below is a description of these icons:
Online Resources
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 graphic means that there is a caution or
warning and it is something that could damage your
property or product.
CAUTION: This exclamation point means that caution
should be used when performing a step or a serious error
may occur.
Resource Website
Linksys www.linksys.com
Linksys International www.linksys.com/international
Glossary www.linksys.com/glossary
Network Security www.linksys.com/security

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 5
Copyright and Trademarks
About This Guide
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.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 6
Introduction
Introduction
Welcome.
The Linksys WebView Managed Switch allows you to expand your network securely.
Configuration of the switch is secured using SSL for Web access. User control is secured using
802.1x security using a RADIUS authentication mechanism and can also be controlled using
MAC-based filtering.
Extensive QoS features makes the solution ideal for real-time applications like Voice and Video.
The 4 priority queues together with the Weighted Round Robin and Strict Priority scheduling
techniques facilitate efficient coexistence of real-time traffic with data traffic allowing them
each to meet their QoS needs. Individual users or applications can be prioritized above others
using various Class of Service options—by port, layer 2 priority (802.1p), and Layer 3 priority
(TOS or DSCP). Intelligent Broadcast, and Multicast storm control minimizes and contain the
effect of these types of traffic on regular traffic. IGMP Snooping limits bandwidth-intensive
video traffic to only the requestors without flooding to all users. Incoming traffic can be policed
and outgoing traffic can be shaped allowing you to control network access and traffic flow.
There are features that allow you to expand and grow your network of switches. Link
aggregation allows multiple high-bandwidth trunks between switches to be setup. This also
provides a level of reliability in that the system continues to operate if one of the links break.
Spanning Tree (STP), Fast Spanning Tree, and Rapid Spanning Tree (RSTP) allow you to build a
mesh of switches increasing the availability of the system.
The rich management functionality of the WebView switches includes SNMP, RMON, Telnet,
and HTTP Management options, allowing you to flexibly integrate and manage these devices in
your network.
What’s in this User Guide?
•Chapter 2, "About This Guide"
This Chapter describes Icons you will see throughout the guide, as well as Online Resources
that can help when using this product.
•Chapter 3, "Introduction"
The current Chapter, this is an introduction and where to find information.
•Chapter 4, "Getting to Know the Switch"
This chapter describes the physical features of the Switch.
•Chapter 5, "Connecting the Switch"
This chapter explains how to install and connect the Switch.
•Chapter 6, "Using the Console Interface for Configuration"
This chapter instructs you on how to use the Switch’s console interface when you configure the
Switch.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 7
Introduction
•Chapter 7, "Using the Web-based Utility for Configuration"
This chapter shows you how to configure the Switch using the Web-based Utility.
•Appendix A, "Specifications"
This appendix provides the Switch’s technical specifications.
•Appendix B, "Warranty Information"
This appendix supplies the Switch’s warranty information.
•Appendix C, "Regulatory Information"
This appendix supplies the Switch’s regulatory information.
•Appendix D, "Safety Information"
This appendix describes the meaning of the various safety and warning symbols.
•Appendix E, "Software License Agreement"
This appendix describes the End User Software License Agreement.
•Appendix F, "Contacts"
This appendix provides contact information for a variety of Linksys resources, including
Technical Support.
•Appendix G, "Gigabit Ethernet and Fiber Optic Cabling"
This appendix provides information about Fiber Optic cabling and Gigabit Ethernet
requirements.
•Appendix H, "Windows Help"
This appendix describes how you can use Windows Help for instructions about networking,
such as installing the TCP/IP protocol.
•Appendix I, "Downloading using Xmodem"
This appendix describes how you can download software into the Switch using Xmodem.
•Appendix J, "Glossary"
This appendix gives a brief glossary of terms frequently used in networking.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 8
Getting to Know the Switch
Getting to Know the Switch
Front Panels
The Switch's LEDs and ports are located on the front panel.
SRW224G4P—Front Panel
SRW248G4P—Front Panel
LEDs
LED Description
System Green. The System LED lights green to indicate the power is being
supplied to the Switch.
Lights orange to indicate that the Switch’s power-on-self-test (POST) is
in progress.
Flashes orange to indicate that the POST has failed.
Link/Act (1-24) Green. The Link/Act LED lights up green to indicate a functional 10/
100Mbps network link through the corresponding port with an attached
device that does not use Power over Ethernet (PoE). Blinks green to
indicate that the Switch is actively sending or receiving data over that
port.
Orange. The Link/Act LED lights up orange to indicate a functional 10/
100Mbps network link through the corresponding port with an attached
PoE device.
Link/Act (G1-G4) Green. The Link/Act LED lights up green to indicate a functional 10/
100Mbps network link through the corresponding port with an attached
device. Blinks green to indicate that the Switch is actively sending or
receiving data over that port.
Orange. The Link/Act LED lights up orange to indicate a functional
1000Mbps network link through the corresponding port with an
attached device.
PoE Orange. The PoE LED lights orange to indicate a powered device is
connected to the corresponding port (1 through 24).

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 9
Getting to Know the Switch
Ports
The Back Panel
The power port is located on the back panel of the Switch.
Back Panel
Flashes to indicate that the Switch is actively sending power over that
port.
Name Description
SRW224G4P
LAN (1-24)
SRW248G4P
LAN (1-48)
The LAN (Local Area Network) ports connect to Ethernet network
devices, such as other switches or routers.
SRW224G4P
MiniGBIC (G3) /
MiniGBIC (G4)
SRW248G4P
MiniGBIC (G3) /
MiniGBIC (G4)
The Switch is equipped with two mini-GBIC ports. The miniGBIC (gigabit
interface converter) port is a connection point for a miniGBIC expansion
module, so the Switch can be uplinked via fiber to another switch. If a
Gigabit mini-GBIC port is being used, the associated LAN port (12 and/or
24) cannot be used. They link to high-speed network peripheral system
or clients at speeds of 1000Mbps.
Use the Linksys MGBT1, MGBSX1, or MGBLH1 miniGBIC 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.
Label Description
Power The Power port is where you connect the power cord.
LED Description

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 10
Getting to Know the Switch
The Side Panel
The security slot is located on a side panel.
Side Panel.
LAN Ports
These Switches are equipped with twenty-four and forty-eight auto-sensing RJ-45 LAN 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 802.3afcompliant 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 Category 5 (or better) network cable.
The Gigabit Expansion Ports
These Switches are equipped with two miniGBIC ports that have shared Gigabit Ethernet ports
(G3 on the SRW224G4P) and (G4 on the SRW248G4P) 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, MGBSX2, or MGBLH1
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.
Name Description
Security Slot The security slot is where you can attach a lock so the Switch will be
protected from theft.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 11
Getting to Know the Switch
Gigabit expansion module and use Category 5e cabling or fiber optic cabling. For more
information on fiber optic cabling, refer to “Appendix G, "Gigabit Ethernet and Fiber Optic Cabling".
The Console Port
These Switches are equipped with a serial port labeled Console (located on the back 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.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 12
Connecting the Switch
Connecting the Switch
Overview
This chapter will explain how to connect network devices to the Switch. All explanations shown
in this chapter, unless specifically identified, are applicable to both the SRW224G4P and the
SRW248G4P switches. For an example of a typical network configuration, see the application
diagram shown below.
Typical Network Configuration for the SRW224G4P or SRW248G4P
When you connect your network devices, make sure you don’t exceed the maximum cabling
distances, which are listed in the following table:
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)
NOTE: 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).

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 13
Connecting the Switch
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 rackmount placement.
Desktop Placement
1. Attach the rubber feet to the recessed areas on the bottom of the Switch.
Add Feet
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.”
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.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 14
Connecting the Switch
Rack-Mount Placement
To mount the SRW224G4P or the SRW248G4P 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.
Attach the Brackets to the Switch
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.
Mount the Switch in the 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 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. If pre-standard or 802.3af-compliant
PoE devices are connected to the Switch’s 10/100/1000 ports, the Switch automatically
supplies the required power.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 15
Connecting the Switch
5. If you are using a miniGBIC port, then connect a miniGBIC module to a miniGBIC 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 a 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.
8. Power on the network devices connected to the Switch. Each active port’s corresponding
Link/Act LED will light up on the Switch.
Uplinking the Switch
To uplink the Switch, connect one end of a Category 5 (or better) Ethernet network cable into
one of the 24 gigabit 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.
If you will use the Switch’s console interface to configure the Switch, proceed to Chapter 6,
"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 7,
"Using the Web-based Utility for Configuration."
IMPORTANT: Make sure you 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, unplug the power
cord from the back of the Switch. Wait a few seconds and
then reconnect it.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 16
Using the Console Interface for Configuration
Using the Console Interface for
Configuration
Overview
The SRW224G4P and the SRW248G4P Switches feature a menu-driven console interface for
basic configuration of the Switch and management of your network. The Switches 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.
Connection Description
2. On the Connection Description screen, enter a name for this connection. In the example, the
name of connection is SRW224G4P. Select an icon for the application. Then, click the OK
button.
Finding HyperTerminal
3. On the Connect To screen, select a port to communicate with the Switch: COM1, COM2, or
TCP/IP.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 17
Using the Console Interface for Configuration
Connect To
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.
COM1 Properties
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
press Enter. Enter admin in the User Name field. Leave the Password field blank.
Press the Esc button and you will return to the Login screen. Use the right arrow button to
navigate to Execute and press the Enter button to enter the CLI interface.

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 18
Using the Console Interface for Configuration
Telnet Login Screen
Configuring the Switch through the Console Interface
The console screens consist of a series of menus. Each menu has several options, which are
listed vertically. You select a menu option when you highlight it; pressing the Enter key
activates the highlighted option.
To navigate through the menus and actions of the console interface, use the up or down arrow
keys to move up or down, and use the left or right arrow keys to move left or right. Use the
Enter key to select a menu option, and use the Esc key to return to the previous selection.
Menu options and any values entered or present will be highlighted. The bottom of the screen
lists the actions available.
Switch Main Menu
The System Main Menu screen displays these choices:
1. System Configuration Menu
2. Port Status
3. Port Configuration
4. PoE Configuration
5. Help
0. Logout
Switch Main Menu

24-Port/48-Port 10/100/1000 Gigabit Switch with Webview and PoE 19
Using the Console Interface for Configuration
System Configuration Menu
On the System Configuration Menu screen, you have these choices:
1. System Configuration
2. Management Settings
3. User & Password Settings
4. IP Configuration
5. File Management
6. Restore System Default Settings
7. Reboot System
0. Back to Main Menu
System Configuration Menu
System Information
Using this screen, you can check the Switch’s firmware versions and general system
information.
System Information Menu