NETGEAR GS108Tv1 - Gigabit Smart Switch Manual

202-10248-01
April 2010
v1.1
NETGEAR, Inc.
4500 Great America Parkway
Santa Clara, CA 95054 USA
GS108T Smart Switch
Hardware Installation
Guide

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v1.1, April 2010
© 2010 by Netgear Inc. All Rights reserved
Trademarks
NETGEAR, the NETGEAR logo, Auto Uplink, and ProSafe are trademarks or registered trademarks of Netgear, Inc. in the United
States and/or other countries. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other brand and product names are trademarks of their respective holders. Information is subject to change without notice. All rights
reserved.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to
make changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit
layout(s) described herein.
Certificate of the Manufacturer/Importer
It is hereby certified that the GS108T Gigabit Smart Switch has been suppressed in accordance with the conditions set
out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some equipment (for example, test
transmitters) in accordance with the regulations may, however, be subject to certain restrictions. Please refer to the notes
in the operating instructions.
The Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market
and has been granted the right to test the series for compliance with the regulations.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the first category (information equipment to be used in commercial and/or industrial areas) and
conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and
Electronic Office Machines that are aimed at preventing radio interference in commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be
caused to equipment such as radios and TV receivers.
Federal Communications Commission (FCC) Compliance Notice: Radio Frequency
Notice
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.

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iii
• Connect the equipment into an outlet on a circuit different from that which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
EU Statement of Compliance
The NETGEAR GS108T Gigabit Smart Switch is compliant with the following EU Council Directives: 89/336/EEC and
LVD 73/23/EEC. Compliance is verified by testing to the following standards: EN55022 Class A, EN55024 and
EN60950-1.
Note: This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the
user may be required to take appropriate measures.
Canadian Department of Communications Radio Interference Regulations
This digital apparatus (NETGEAR GS108T Gigabit Smart Switch) does not exceed the Class A limits for radio-noise
emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of
Communications.
Règlement sur le brouillage radioélectrique du ministère des Communications
Cet appareil numérique (NETGEAR GS108T Gigabit Smart Switch) respecte les limites de bruits radioélectriques visant
les appareils numériques de classe A prescrites dans le Règlement sur le brouillage radioélectrique du ministère des
Communications du Canada.
Customer Support
For assistance with installing and configuring your NETGEAR system or for questions or problems following
installation:
•Check the NETGEAR Web page at http://www.NETGEAR.com/support
• Call Technical Support in North America at 1-888-NETGEAR. If you are outside North America, please refer to
the phone numbers listed on the Support Information Card that was included with your switch.
• Email Technical Support at [email protected].
• Defective or damaged merchandise can be returned to your point-of-purchase representative.
Internet/World Wide Web
NETGEAR maintains a World Wide Web home page that you can access at the uniform resource locator (URL)
http://www.NETGEAR.com. A direct connection to the Internet and a Web browser such as Internet Explorer or Netscape
are required.
FCC Requirements for Operation in the United States
FCC Information to User
This product does not contain any user-serviceable components and is to be used with approved antennas only. Any
product changes or modifications will invalidate all applicable regulatory certifications and approvals

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FCC Guidelines for Human Exposure
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter
must not be co-located or operating in conjunction with any other antenna or transmitter.
FCC Declaration Of Conformity
We, NETGEAR, Inc., 4500 Great America Parkway, Santa Clara, CA 95054, declare under our sole responsibility that
the model GS108T: ProSafe™ 24 Port 10/100 Smart Switch with 4 Gigabit Ports and 24 Port PoE complies with Part 15
of FCC Rules. Operation is subject to the following two conditions: a) This device may not cause harmful interference
and b) This device must accept any interference received, including interference that may cause undesired operation."
Product and Publication Details
Model Number: GS108T
Publication Date: April 2010
Product Family: Smart Switch
Product Name: GS108T Gigabit Smart Switch
Home or Business Product: Business
Language: English
Publication Part Number: 202-10248-01
Publication Version Number: 1.1

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Contents
About This Manual
Conventions, Formats, and Scope ...................................................................................vii
How to Use This Manual .................................................................................................viii
How to Print this Manual ..................................................................................................viii
Revision History ................................................................................................................ ix
Chapter 1 
Introduction
Overview .........................................................................................................................1-1
Features .........................................................................................................................1-2
Package Contents ..........................................................................................................1-4
Chapter 2 
Physical Description
Front and Back Panels .............................................................................................2-1
10/100/1000 Mbps RJ-45 Ports ...............................................................................2-2
LED Descriptions ............................................................................................................2-2
Reset Button ............................................................................................................2-3
Restore Factory Defaults Button ..............................................................................2-4
Chapter 3 
Applications
Desktop Switching ....................................................................................................3-1
Chapter 4 
Installation
Step 2: Applying Footpads and Wall Mounting ...............................................................4-2
Step 3: Checking the Installation ....................................................................................4-2
Step 4: Connecting Devices to the Switch ......................................................................4-2
Step 5: Applying Power ..................................................................................................4-3
Step 6: Switching Management Through a Web Browser or Utility Program (Initial
Configuration) .................................................................................................................4-4

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Appendix A 
Troubleshooting
Troubleshooting Chart ............................................................................................. A-1
Additional Troubleshooting Suggestions ....................................................................... A-2
Network Adapter Cards ........................................................................................... A-2
Configuration ........................................................................................................... A-2
Switch Integrity ........................................................................................................ A-2
Appendix B 
Technical Specifications
Network Protocol and Standards Compatibility ................................................. B-1
Management ..................................................................................................... B-1
Interface ............................................................................................................ B-1
LEDs ................................................................................................................. B-2
Performance Specifications .............................................................................. B-2
Power Supply ................................................................................................... B-2
Physical Specifications ..................................................................................... B-2
Environmental Specifications ............................................................................ B-2
Electromagnetic Emissions .............................................................................. B-2
Electromagnetic Immunity ................................................................................ B-3
Safety ............................................................................................................... B-3
Appendix C 
Glossary

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About This Manual
The NETGEAR®GS108T Smart Switch™ Hardware Installation Guide describes how to install,
configure, and troubleshoot the GS108T Gigabit Smart Switch. The information in this manual is
intended for readers with intermediate computer and Internet skills.
Conventions, Formats, and Scope
The conventions, formats, and scope of this manual are described in the following paragraphs:
•Typographical Conventions. This manual uses the following typographical conventions:
Italics Emphasis, books, CDs, file and server names, extensions
Bold User input, IP addresses, GUI screen text
Fixed Command prompt, CLI text, code
italics URL links
•Formats. This manual uses the following formats to highlight special messages:
Tip: This format is used to highlight a procedure that will save time or resources.
Warning: Ignoring this type of note may result in a malfunction or damage to the
equipment.
Danger: This is a safety warning. Failure to take heed of this notice may result in
personal injury or death.
Note: This format is used to highlight information of importance or special interest.

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•Scope. This manual is written for the GS108T Smart Switch according to these specifications:
Product Version GS108T Gigabit Smart Switch
Manual Publication Date April 2010
.
Note: Product updates are available on the NETGEAR, Inc. website at
http://kbserver.netgear.com/products/GS108T.asp.
How to Use This Manual
The HTML version of this manual includes the following:
• Buttons and for browsing forwards or backwards through the manual one page
at a time.
•A button that displays the table of contents and a button. Double-click on a link
in the table of contents or index to navigate directly to where the topic is described in the
manual.
•A button to access the full NETGEAR, Inc. online knowledge base for the product
model.
• Links to PDF versions of the full manual and individual chapters.
How to Print this Manual
To print this manual, choose one of the following options:
•Printing a Page from HTML. Each page in the HTML version of the manual is dedicated to
a major topic. Select File > Print from the browser menu to print the page contents.
•Printing from PDF. Your computer must have the free Adobe Acrobat reader installed in
order to view and print PDF files. The Acrobat reader is available on the Adobe Web site at 
http://www.adobe.com.
– Printing a PDF Chapter.

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• Click the PDF of This Chapter link at the top left of any page in the chapter you want
to print. The PDF version of the chapter you were viewing opens in a browser
window.
• Click the print icon in the upper left of your browser window.
–Printing a PDF version of the Complete Manual.
• Click the Complete PDF Manual link at the top left of any page in the manual. The
PDF version of the complete manual opens in a browser window.
• Click the print icon in the upper left of your browser window.
Tip: If your printer supports printing two pages on a single sheet of paper, you can
save paper and printer ink by selecting this feature.
Revision History
Part Number Version
Number Date Description
202-10248-01 1.0 March 2007 Product created
202-10248-01 1.1 April 2010 Power supply specification corrected

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Chapter 1
Introduction
Congratulations on your purchase of the NETGEAR GS108T Gigabit Smart Switch! Your
NETGEAR Switch is a state-of-the-art, high-performance, IEEE-compliant network solution
designed for users who require a large number of ports and want the power of Gigabit connectivity
to eliminate bottlenecks, boost performance, and increase productivity. There are 8 twisted-paired
ports on the front panel of the switch which support non-stop 10/100/1000 networks. To simplify
installation, the switch is shipped ready for use out of the box.
This chapter serves as the introduction for using your NETGEAR GS108T Gigabit Smart Switch
and provides the following information:
•Overview
• Switch Features
• Package contents
Overview
Your NETGEAR GS108T Gigabit Smart Switch provides 8 twisted-pair ports that support 10/100/
1000 Megabit link speed. Using these Gigabit slots, you can create high-speed connections to a
server or network backbone. For example, you can:
• Connect switches to each other with high-speed links

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• Link to high-speed servers
• Provide 10/100/1000 copper connectivity
Your GS108T Gigabit Smart Switch also provides the benefit of administrative management with
a complete package of features for the observation, configuration, and control of your network.
With a Web-based Graphical User Interface (GUI), the switch’s many capabilities can be viewed
and used in a simple and intuitive manner. There is also an easy to use switch management utility
that runs on a PC. The switch’s management features include configuration for port and switch
information, VLAN for traffic control, port trunking for increased bandwidth, and Class of Service
(CoS) for traffic prioritization. These features, and more, enable you better to understand and
control your network.
Your NETGEAR GS108T Gigabit Smart Switch can be free-standing or rack-mounted in a wiring
closet or equipment room. It is IEEE-compliant and offers low latency for high-speed networking.
It includes 8 auto-sensing 10/100/1000 Ethernet ports. All ports can automatically negotiate to the
highest speed. This capability makes the switch ideal for environments that have a mix of Ethernet,
Fast Ethernet, and Gigabit Ethernet devices. In addition, all 10/100/1000 Mbps ports operate in
half- or full-duplex mode, increasing the maximum bandwidth of each connection to either 20
Mbps, 200 Mbps, or 2000 Mbps, respectively. The maximum segment length is 328 feet (100
meters) over Category 5 unshielded twisted-pair (UTP) cable.
Features
The following list identifies the key features of the NETGEAR GS108T Gigabit Smart Switch.
• Eight 10/100/1000 Mbps auto-sensing Gigabit-Ethernet switching ports
• Reset Button
• Factory Defaults Button
• Administrative switch management
• IEEE 802.1w Rapid Spanning tree
• IEEE 802.1x Port Security
• IEEE 802.1ab LLDP (Link Layer Discovery Protocol)
• SNMP (Simple Network Management Protocol)
• IEEE 802.1Q Tag VLAN with up to 8 VIDs ranging in 2 to 4K
• IEEE 802.1p QoS support, four priority queues per port
• Port-based VLAN with up to 8 groups; any one port can belong to different VLAN groups
• IEEE 802.3ad Link Aggregation support

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• Embedded HTTP server for Web-based management
• Supports port-setting function, enabling user to enable/disable each port, and set speed,
duplex mode and device flow control
• Auto-Discovery support with application program for discovering and managing the smart
switches on the network
• Flash upgrade, configuration backup/restore, and factory reset
• Full compatibility with IEEE standards:
• IEEE 802.3i (10BASE-T)
• IEEE 802.3u (100BASE-TX)
• IEEE 802.3z/ab (1000BASE-X, 1000Base-T)
• IEEE 802.3x (full-duplex flow control)
• Auto-sense and auto-negotiate for all ports
• Auto Uplink™ on all ports for the right connection sense
• Integrated address Look-Up Engine supports 8K absolute MAC addresses
• Full- and half-duplex functions for all 10/100/1000 ports
• Store-and-Forward transmission to remove bad packets from the network
• Active flow control to minimize packet loss/frame drops:
• Half-duplex back-pressure control
• Full-duplex IEEE 802.3x pause frame flow control
• LED indicators for port status monitoring:
• Power LED indicates power on/off status
• Link/Act LED indicates link status and activity
• Flexible installation:
• Standalone desktop installation

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Package Contents
Figure 1-1 shows the package contents of the NETGEAR GS108T Gigabit Smart Switch.
Figure 1-1Package Contents
Verify that your package contains the following:
• GS108T Gigabit Smart Switch.
• Rubber footpads for tabletop installation.
• External power supply.
• Wall mounting screws (2).
• Installation guide.
•

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• Smart Switch Resource CD. This includes the Smart Wizard Discovery Utility and Hardware
manual. The CD also provides a link to the Software Admin manual (the GS108T Smart
Switch Software User Manual).
Tip: You can download the GS108T Smart Switch Software User Manual on the
NETGEAR documentation Web site at http://kbserver.netgear.com.
• Warranty/Support Information Card.
If any item is missing or damaged, contact your point-of-purchase representative immediately.

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Chapter 2
Physical Description
This chapter describes the hardware features of the NETGEAR GS108T Gigabit Smart Switch.
Topics include:
• Front and back panels
• 10/100/1000 Mbps auto-sensing RJ-45 ports
• LED descriptions
• Reset button
• Factory defaults button
Front and Back Panels
Figure 2-1 and Figure 2-2 show the key components on the front and back panels of the
NETGEAR GS108T Gigabit Smart Switch.
Figure 2-1 GS108T Gigabit Smart Switch—Front Panel
Figure 2-2 GS108T Gigabit Smart Switch—Rear Panel
The front panel contains RJ-45 jacks with LEDs. The rear panel has a DC jack for accommodating
the power adapter.

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10/100/1000 Mbps RJ-45 Ports
The 8 10/100/1000 Mbps, auto-sensing RJ-45 ports of the GS108T Gigabit Smart Switch are seen
in Figure 2-1. When you insert a cable into one of these ports, the switch automatically determines
the maximum speed (10 or 100 or 1000 Mbps) and the mode (half- or full-duplex) of the attached
device. All ports support only unshielded twisted-pair (UTP) cable with an 8-pin RJ-45 plug
connection.
To simplify the procedure for attaching devices, all RJ-45 ports support Auto Uplink. This
technology enables you to attach devices to the RJ-45 ports using either straight-through or
crossover cables. When you insert a cable into one of these ports, the switch automatically:
• Detects whether the combination of attached device and network cable (normal or crossover)
requires a normal connection (such as when connecting the port to a PC) or an uplink
connection (such as when connecting the port to a router, switch, or hub).
• Configures the RJ-45 port to enable communications with the attached device without user
intervention.
LED Descriptions
The front panel of the NETGEAR GS108T Gigabit Smart Switch comprises LEDs that provide a
concise display of link, port speed, and activity. The following table summarizes the function of
these LEDs.
Table 2-1. Front Panel LEDs
Label Color Activity Description



100Mbps Link / ACT LED 
(Left LED)
n/a Off No 100Mbps link is established on the
port
Green On - Solid A valid 100Mbps link is established on
the port
Green On - Blinking Packets transmission or reception is
occurring on the port, linked at
100Mbps mode

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Reset Button
The Reset button of the GS108T triggers a hardware reset of the switch. Figure 2-3 shows its
location on the front panel. This action is equivalent to switching the unit power off and back on.
The last saved configuration is loaded into the switch as it resets. To operate the reset button, insert
a device such as a paper clip into the opening to press the recessed button. The front-panel LEDs
should extinguish and light again as the switch performs its Power On Self Test (POST).



10Mbps Link / ACT LED 
(Right LED)
n/a Off No 10Mbps link is established on the
port
Green On - Solid A valid 10Mbps link is established on
the port
Green On - Blinking Packets transmission or reception is
occurring on the port, linked at 10Mbps
mode



1000Mbps Link / ACT LED 
(Both LEDs)
n/a Off No 1000Mbps link is established on the
port
Green On - Solid A valid 1000Mbps link is established on
the port
Green On - Blinking Packets transmission or reception is
occurring on the port, linked at
1000Mbps mode
Table 2-1. Front Panel LEDs (continued)

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Figure 2-3 Reset Button of the GS108T Gigabit Smart Switch
Restore Factory Defaults Button
The Restore Factory Default button of the GS108T Smart Switch enables you to clear the current
settings and return the switch to its factory default configuration. This function clears all settings,
including the password, VLAN settings, and port configurations. To perform this operation, insert
a device such as a paper clip into the opening to press the recessed button.