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@2004 NETGEAR, Inc. NETGE A R, the Netgear logo, Auto Uplink, ProSafe and Everybody’s connecting are t rademarks or registered trademarks
of Netgear, Inc. in the United States and/or other countri es. Other brand and product names are trademarks of their respective holders. Inform at i on
is subject to change without notice. All rights res erved.
Statement of Conditions
In the interest of improving internal des ign, 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) des cribed herein.
Certificate of the Manufacturer/Importer
It is hereby certified that the NETGEAR ProSafe FS726T Smart Switch has been s uppressed in accordance with the condit i ons set out in the BMPTAmtsblVfg 243/ 1991 and V fg 46/1992.The operation of some equi pment (for example, test transmitters) in ac cordance with the regulations m a y,
however, be subject to certain restrictions. Please refer to the notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placi ng of this equipment on the m arket and has been granted the right
to test the series for compliance with the regulati ons.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in t he first category (information equipment to be used in commercial and/or i ndustrial areas) and conforms to the standards set
by the Voluntary Control Council f or I n t erference 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 i s used in a residential area or in an adjac ent area thereto, radio interference m ay 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 conditi ons:
This device may not cause harmful interference.
This device must accept any interference received, i ncluding interference that may cause undesired operation.
Note: This equipment has been t ested and found to comply with the l i mits for a Class A di gi tal device, pursuant to part 15 of t he FCC Rules. These
limits are designed t o provi de 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 i nterference to radio
communications . However, there is no guarant ee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or televis i on reception, which can be determined by turning the equipment off and on, t he user is encouraged to try to correc t
the interference by one or more of the following measures:
Reorient or relocate the receiving ant enna.
Increase the separation between the equipment and receiver.
Connect the equipment int o an out l et on a circuit different from that which the receiver is connected.
Consult the dealer or an experienced radio/TV tec hni cian for help.
EN 55 022 Declaration of Conformance
This is to certify that the NETGEA R ProSafe FS726T Smart Switch is sh ielded against the generation of radio int erference in accordance with the
application of Council Directive 89/336/EEC, Arti cle 4a. Conformity is declared by the application of EN 55024 Class A (CISPR 22).
EN 55 022 and EN 55 024 Statements
This is to certify that the NETGEA R ProSafe FS726T Smart Switch is sh ielded against the generation of radio int erference in accordance with the
application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22) and EN 55 024.
Warning: 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.
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Canadian Department of Communications Radio Interference Regulations
This digital apparatus (NETGEAR ProSafe FS726T Smart Switch) do not exceed the Class A l i mits for radio-noise emissions from di gi t al apparatus as
set out in the Radio Interf erence Regulations of the Canadian Department of Communications.
Règlement sur le brouillage radioélectrique du ministère des Communications
Cet appareil numérique (NETGEAR ProSafe FS726T Smart Switch) respec te les li mite s de bruits radioélectriques visant l es appareils numériques de
classe A prescrites dans le Règlement sur le brouillage radioélectrique du ministère des Communicat i ons du Canada.
Customer Support
For assistance with inst al l i ng and configuring your NETGEAR system or with 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 Ameri ca, please refer to the phone numbers listed
on the Support Informati on Card that shipped with your switch.
• Email Technical Support at support@NETGEAR.c om.
Defective or damaged merchandise can be returned to your point-of-purc hase representative.
Internet/World Wide Web
NETGEAR maintains a World W i de Web home page that you can access at the unif orm resource locator (URL) http://www.NETGEAR.com. A
direct connection to t he Internet and a Web browser suc h as Internet Explorer or Netscape are required.
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CONTENTS
CHAPTER 1: INTRODUCTION..................................................................................................................................................................................................5
OVERVIEW............................................................................................................................................................................................................................5
FEATURES ............................................................................................................................................................................................................................6
PACKAGE CONTENTS..............................................................................................................................................................................................................7
CHAPTER 2: PHYSICAL DESCRIPTION...................................................................................................................................................................................8
FRONT AND BACK PANELS .......................................................................................................................................................................................................8
10/100 MBPS RJ-45 PORTS.....................................................................................................................................................................................................8
SFP GBIC MODULE...............................................................................................................................................................................................................9
LED DESCRIPTIONS ...............................................................................................................................................................................................................9
RESET BUTTON......................................................................................................................................................................................................................9
FACTORY DEFAULTS BUTTON................................................................................................................................................................................................. 10
CHAPTER 3: APPLICATIONS.................................................................................................................................................................................................11
DESKTOP SWITCHING ...........................................................................................................................................................................................................11
CHAPTER 4: INSTA LLATION.................................................................................................................................................................................................12
STEP 1: PREPARING THE SITE................................................................................................................................................................................................12
STEP 2: INSTALLING THE SWITCH ............................................................................................................................................................................................12
STEP 3: CHECKING THE INSTALLATION.....................................................................................................................................................................................13
STEP 4: CONNECTING DEVICES TO THE SWITCH........................................................................................................................................................................13
STEP 5: INSTALLING AN SFP GBIC MODULE.............................................................................................................................................................................13
STEP 6: APPLYING AC POWER...............................................................................................................................................................................................14
STEP 7: SWITCH MANAGEMENT THROUGH A WEB BROWSER OR THE PC UTILITY FOR INITIAL CONFIGURATION ...................................................................................14
APPENDIX A: GLOSSARY.....................................................................................................................................................................................................15
APPENDIX B: TROUBLESHOOTING......................................................................................................................................................................................17
TROUBLESHOOTING CHART....................................................................................................................................................................................................17
ADDITIONAL TROUBLESHOOTING SUGGESTIONS ........................................................................................................................................................................17
APPENDIX C: TECHNICAL SPECIFICATIONS.........................................................................................................................................................................18
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Figures
Figure 1-1. Package Contents ............................................................................................................................... .........................................................7
Figure 2-1. Front Panel of the NETGEAR ProSafe FS726T Smart Switch ...............................................................................................................8
Figure 2-2. Back Panel of the NETGEAR ProSafe FS726T Smart Switch................................................................................................................8
Figure 3-1. Example of Des ktop Switching...............................................................................................................................................................11
Figure 4-1. Attaching Mounting Brackets .................................................................................................................................................................13
Figure 4-2. Connecting Devices to the Switch.........................................................................................................................................................13
Figure 4-3. Install ing a Gigabit Ethernet Module into FS726T .............................................................................................................................14
Tables
Table 2-1. Front Panel LEDs:.............................................................................................................................................................................................9
Table 4-1. Site Requirements..........................................................................................................................................................................................12
Table B-1. Troubleshooting Chart..................................................................................................................................................................................17
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CHAPTER 1: INTRODUCTION
Congratulations on your purchase of t he NETGEAR ProSafe FS726T Smart Switch! Your NETGE AR Switch is a state- of- the-ar t, 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 productivit y. There are two built-in RJ-45 Gigabit Ethernet port s with one built-in Small Form-Factor
Pluggable (SFP) GBIC slot on t he front panel of the switch that s upport non-stop 10/100/1000 networks. To si mplify installation , the switch is
shipped ready for use out of the box.
This chapter serves as t he i nt roduction for using your NETGEAR ProSafe FS726T Smart Switch and provides the following inform at i on:
• Overview
• Switch Features
• Package contents
Overview
Your NETGEA R ProSafe FS726T Smart Switch provid es two built-in RJ-45 Gigabit Ethernet ports with one built-in Sm al l Form-Factor Pluggable (SFP)
GBIC slot that support non-bl ocking 10/100/1000 networks. Using t hese Gigabit ports, you can creat e hi gh-speed connections to a server or
network backbone. For example, you can:
• Connect switches to each ot her with hi gh-speed links
• Link to high-speed servers
• Provide 10/100/1000 copper and fiber connec tivity
Your NETGEA R ProSafe FS726T Smart Switch also provides the benefit of adm i ni strative management with a c omplete package of features for the
observation, configuration, and control of your network. With a Web-bas ed Graphi cal User Interface (GUI), the switch’s many capabilities can be
viewed and used in a simple and intuiti ve manner. The switch’s management features include configuration for port and switch i nformation, VLAN
for traffic control , port trunking for increased bandwidth, and Cl ass of Service (CoS) for traffic prioritization. These features and more will allow you
to better understand and control your network. Initial discovery of your switch on your network requires the Smart Wizard Discovery program, a
utility that runs on a PC.
Your NETGEA R ProSafe FS726T 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 net working. It includes two built-in RJ -45 Gi gabi t Ethernet ports with one SFP GB I C slot. All ports can
automatically negotiate to the highes t speed. This capability makes the switch ideal for environments that have a mix of Et hern et , Fast Ethernet, or
Gigabit Ethernet devices. In addition, all RJ-45 ports operate in half- or full-duplex mode, increasing the maximum bandwidth of each connection up
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, but much longer for fiber connections using SFP GBIC modul es.
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Features
The following list identifies the key features of the NETGEAR ProSafe FS726T Smart Switch.
• Twenty-four 10/100 Mbps and two 10/100/1000 Mbps auto-sensing Et hernet switching ports
• One SFP GBIC combo Gigabit Ethernet slot for optional fiber connectivity
• Automatic detec tion of SFP GBIC modules
• Reset Button.
• Factory Defaults Butt on.
• Administrative switch management inc l udi ng:
IEEE 802.1Q Tag VLAN with up to 64 VI Ds ranging in 2 to 4K ♦
♦
Port-based VLAN with up to 26 groups, any one port can belong to different VLAN groups
♦
IEEE 802.1p QoS support, 4 pri ori ty queues per port
♦
IEEE 802.3ad Link Aggregati on support
♦
Web-based management with embedded HTTP server provided
♦
Supports port-setting f unction which allows user to enable/disabl e each port, set speed, duplex mode and device follow control
♦
Support Auto-Discovery application program for discoveri ng and managing the switches on the net work
♦
Support flash upgrading, conf i gurat i on 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-sensing and auto-negotiating capabilit ies for all ports
• Auto Uplink™ on all ports to make the right connection
• Integrated address Look-Up Engine, supports 8K absolute MAC address es
• Full- and half-duplex functions for all RJ-45 ports
• Store-and-Forward transmission t o remove bad packets from the network
• Active flow control to minimize packet l oss/frame drops:
♦
Half-duplex back-pressure control
♦
Full-duplex IEEE 802.3x pause frame flow control
• LED indicators for port s tatus monitoring:
♦
Power LED to indicate power on/off status
♦
Link/Act LED to indicate link status and activity
♦
Dual-color Mode LED to indicate speed, activity for Gigabit ports
• Flexible installation:
♦
Standalone desktop installation
♦
19-inch standard rack-mount
• Standard 1U case size
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Package Contents
Figure 1-1 shows the package contents of the NETGEAR ProSafe FS726T Smart Switch.
Figure 1-1. Package Contents
Verify that your package cont ai ns the following:
NETGEAR ProSafe FS726T Sm art Switch
Rubber footpads for tabletop ins t al lation
Power cord
Rack-mount kit for ins talling the switch in a 19-inch rack
Installation guide
Smart Switch Resource CD with Smart Wizard Discovery and User’s manual
Warranty/Support Information Card
If any item is missing or damaged, c ontact your place of purchase immediately.
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CHAPTER 2: PHYSICAL DESCRIPTION
This chapter describes t he hardware features of the NETGEAR ProSafe FS726T Smart Switch. Topics include:
• Front and back panels
• 24 10/100 Mbps and 2 10/100/100 Mbps auto-sensing RJ -45 ports
• SFP GBIC Module bay
• LED descriptions
• Reset Button
• Factory Defaults Button
Front and Back Panels
Figures 2-1 and 2-2 show the key components on the front and back panels of the NETGEAR ProSafe FS726T Smart Switch
The front panel contains LEDs and RJ-45 jacks and 1 SFP GBIC module bays . The back panel has a standard AC power receptacl e for
accommodating the supplied power cord.
Figure 2-1. Front Panel of the NETGEAR ProSafe FS726T Smart Switch
Figure 2-2. Back Panel of the NE TGEAR ProSafe FS726T Smart Switch
10/100 Mbps RJ-45 Ports
As Fi gure 2-1 sh ows, th e NETGEAR ProSafe FS726T Smart Switch has 24 10/100 Mbps and 2 10/100/1000 Mbps RJ-45 ports. These ports are autosensing ports: When you insert a cable into an RJ-45 port, the switch automatically ascertains the maximum speed (10 or 100 or 1000 Mbps) and
duplex mode (half- or full-duplex) of the attac hed devi ce. All ports support only unshielded twisted-pair (UTP) cable terminated with an 8-pin RJ-45
plug.
To simplify the proc edure f o r at taching devices, all RJ -45 ports support Auto Uplink. Thi s technology lets you attach devices to the RJ-45 port s
either straight-through or cros sover cables. W hen you i nsert a cable into the switch’ s RJ-45 port, the switch automatically:
• Senses whether the cable is a straight-through or crossover cable, and
• Determines whether the link t o the attached device requires a “norm al” connection (such as when connecting the port to a PC) or an
“uplink” connection (suc h as when connecting the port to a router, switch, or hub).
• Configures the RJ-45 port to enable c ommunications with t he attached device, without requiring us er i ntervention. In this way, the
Auto Uplink technology compensates for setting uplink connections, while eliminating concern about whether t o use crossover or
straight-through cables when attaching devices.
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SFP GBIC Module
The one module bay accommodates standard SFP GBIC modules, such as the AGM731F or AGM732F from NETGEAR, allowing you to have fiber
connections on your network. The m odul e bay i s a combo port, sharing a c onnection with the last one RJ-45 port. Being a combo port, onl y one
type of connection can be active at any given time. For example, both copper and fiber port cannot be used at the same time. If both connectors are
plugged in at the same time, the fiber port will be active.
The SFP GBIC bay accommodates a standard SFP GBIC module.
LED Descriptions
The front panel of the NETGEAR FS726T Fas t Ethernet Smart Switc h has LEDs that provide a quick and ac curate display of link, po rt speed, and
activity. Table 2-1 summarizes the LEDs on the switch.
Table 2-1. Front Panel LEDs:
Label Description
Power Solid Green –Power is supplied to the s witc h & operating normally
10/100 Mbps LED /Port Link/ACT LED:
10/100/1000 Mbps LED / Port
Off – Power is Disconnected
Solid Green – A valid 10/100Mbps link is established on the port
Blinking Green – Packets transmission or rec eption is occurring on the port at 100Mbps
OFF –No 10/100Mbps link is established on the port
100M LED
Solid Green – A valid 100Mbps link is established on the port
OFF –No 100Mbps link is established on the port
Link/ACT LED:
Solid Green – A valid 10/100/1000Mbps link i s established on the port
Blinking Green – Packets transmission or rec eption is occurring on the port at 10/100/1000Mbps
OFF –No 10/100/1000Mbps link is establ i shed on the port
100/1000M LED
Solid Green – A valid 1000Mbps link is established on the port
S ol i d Y el l ow – A vali d 100Mbps l i nk is established on the port
SFP (Mini GBIC) Link LED
OFF –No 100/1000Mbps link is established on the port
A valid 1000Mbps link is established on the port
No 1000Mbps link is established on the port
Reset Button
The FS726T has a Reset Button to t ri gger a hardware reset of the switch. This is equival ent to turning the power off and back on. The las t saved
configuration will be loaded onto the switch as it resets . To press the Reset Button, insert a small device such as a paper cli p i nto the opening to
press the recessed butt on. The LEDs on the switch should go out and t hen come back on as the switch goes through its Power On Switch Test
(POST).
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Factory Defaults Button
The FS726T has a Factory Default Button to enable you to clear out the current configuration and return to the factory settings. This will clear out all
settings, includi ng the password, VLAN settings and port configurations.
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CHAPTER 3: A PPLICAT IONS
Your NETGEAR ProSafe FS726T Sm art Switch is designed to provide flexibility in configuring your network connections. It can be used as a standalone device or with 10 Mbps, 100 Mbps, 10/100 Mbps, and 1000 Mbps hubs and switches.
Desktop Switching
Your NETGEAR ProSafe FS726T Smart Switch can be used as desktop switch to build a sm al l network that enables users to have 1000 Mbps
access to a file server. With ful l -dupl ex enabled, the switch port connected to t he server or PC can provide 2000 Mbps throughput.
Figure 3-1. Example of Desktop Switching
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CHA PTER 4: INST A LLA T ION
This chapter describes t he i nstallation procedures for your NETGE A R P roSafe FS726T Smart Switch. S witch installation involves the following
steps:
Step 1: Preparing the site
Step 2: Installing t he switch
Step 3: Checking the ins t al l ation
Step 4: Connecting devices to the switch
Step 5: Installing an SF P GBIC module
Step 6: Apply AC power
Step 7: Switch management through a Web Brower or the PC Utility for initial c onf iguration
Step 1: Preparing the Site
Before you install your switc h, be sure your operating environment m eets the operating environment requirements in Table 4-1.
Table 4-1. Site Requirements
Characteristics Requirements
Mounting
Desktop installati ons:
Rack-mount instal l ations:
Access
Power source
Environmental
Temperature: Install the switch in a dry area, with ambient temperature between 0 and 40ºC (32 and 104ºF).
Operating humidity: The installation locat i on should have a maximum relative humidity of 90%, non-condensing.
Ventilation: Do not restrict airflow by covering or obstructing air inlets on the sides of the switch. K eep at least
Operating conditions: Keep the switch at least 6 f t (1.83 m) away from nearest source of electromagnetic noi se, such as
Provide a flat table or shelf surface.
Use a 17-inch (48.3-centim eter) EIA standard equipment rack that is grounded and physically
secure. You also need the rack-mount kit suppli ed with your switch.
Locate the switch in a posit ion that lets you access the front panel RJ-45 ports, vi ew the front
panel LEDs, and access power connector.
Provide a power source within 6 feet (1.8 met ers) of the installation l ocation. Power specificat i ons
for the switch are shown in Appendix C. Be sure the AC outlet is not controll ed by a wall s witch,
which can accidentally turn off power to t he outlet and the switch.
Keep the switch away from heat sourc e s such as direct sunli ght, warm air exhausts, hot-air vents,
and heaters.
2 inches (5.08 centim eters) free on all sides for c ool i ng.
Be sure there is adequate airflow in the room or wiring closet where you intend to instal l the
switch.
a photocopy machine.
Step 2: Installing the Switch
You can install your NETGEAR ProSafe FS726T Smart Switc h on a f l at surface or in a standard 19-inch rac k.
Installing the Switch on a Flat Surface
The switch ships with four self-adhesive rubber footpads. Stick one rubber foot pad on each of the four concave spaces on the bottom of the switch.
The rubber footpads cushion the switch against shock/vibrations. They also provide space bet ween each s tacked switch for ventil ation.
Installing the Switch in a Rack
To install the switch in a rac k, use the following procedure (and refer to Figure 4-1). To perform this procedure, you need the 19-inch rack-mount kit
supplied with your switch.
1. Attach the supplied mounting brackets to the side of the switch.
2. Insert the screws provided in the rack-mount kit through each bracket and into the brack et mounting holes in the switch.
3. Tighten the screws with a #1 Phillips screwdriver to secure each bracket.
4. Align the mounting holes i n t he brackets with the holes in the rack, and insert two pan-head screws with nylon washers through each bracket
and into the rack.
5. Tighten the screws with a #2 Phillips screwdriver to secure the switch in the rack.
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Figure 4-1. Attaching Mounting Brackets
Step 3: Checking the Installation
Before you apply power:
o Inspect the equipment thoroughly.
o Verify that all cables are i nstalled correctly.
o Check cable routing to m ake sure cables are not damaged or creating a safety hazard.
o Be sure all equipment is mounted properly and securely.
Step 4: Connecting Devices to the Switch
The following procedure describes how to connect devi ces to the switch’s RJ-45 port s. Your NETGEAR ProSafe FS726T Smart Switch contains
Auto Uplink™ technology, which al lows you to attach devices usi ng ei ther straight-through or cross over cables.
Connect each device to an RJ-45 network port on the switch’s front panel (see Fi gure 4-4). Use Category 5 (Cat5) unshielded twisted-pair (UTP)
cable terminated with an RJ-45 c onnector to make these connections.
Note: Ethernet specif i cations limit t he cable length between the switch and the attached device to 100 m (328 ft).
Step 5: Installing an SFP GBIC Module
The following procedure describes how to instal l an S F P Gi gabi t Ethernet module in the switch’s Gigabit module bay. Standard SFP GBIC modules
are sold separately from the FS726T. If you do not want to install an S F P GBIC module at this time, skip this procedure.
To install an SFP GBIC module:
o Insert the SFP m odul e i nto the SFP module bay. Press firmly to ensure t he module seats into the c onnector.
Figure 4-2. Connecting Devices to the Switch
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Figure 4-3. Install ing a Gigabit Ethernet Module into FS726T
Step 6: Applying A C Power
NETGEAR ProSafe FS726T Smart Switch does not have an ON/OFF switc h; the only method of applying or removi ng AC power is by connecting
or disconnecting the power cord. Before you connect the power cord, select an AC outlet that is not c ont rol l ed by a wall switch, which can turn off
power to the switch. After you sel ect an appropriate outlet, use t he f o l l owing procedure to apply AC power.
Connect the female end of t he supplied AC power adapter cable to the power receptacle on t he back of the switch.
Connect the 3-pronged end of the AC power adapter cable to a grounded 3-pronged A C out l et.
When you apply power, the Power LED on the switch’s front panel will be Green.
If the Power LED does not go on, check that the power cabl e i s plugged in correctly and that the power source i s good. If this does not resolve the
problem, refer to Appendix B, Troubles hooting.
Step 7: Switch Management through a Web Browser or the PC Utility for Initial Configuration
Your NETGEAR ProSafe FS726T Smart Switch contains s oftware for viewing, changing, and monitoring t he way it works . This management
software is not required for the switch to work. You can use the ports without using the management s oftware. However, the management
software can let you setup VLAN and Trunking features and also im prove t he efficiency of the switch and, as a result, im prove i ts overall
performance as well as the perfo rmance of your network.
After you power-up the switch for the first time, you can configure it using a Web browser or a utility program called Smart Wizard Discovery. For
more information about managing the switch, see the Software Manual on the Smart Switch Resource CD.
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APPENDIX A: GLOSSA RY
y
This appendix defines terms as sociated with switching technology.
10BASE-T
100BASE-FX
100BASE-TX
1000BASE-SX
1000BASE-T
Auto-negotiation
Auto Uplink
Backbone
Bandwidth
Baud
Broadcast
Broadcast storm
Capacity planning
Class of Service
Collision
End station
Ethernet
Fast Ethernet
Gigabit Ethernet
Fault isolation
Forwarding
Filtering
Flow control
Full-duplex
Half-duplex
IEEE
IETF
IGMP
IP
IP address
IP multicast
LAN
Load balancing
Loop
The IEEE specification for 10 Mbps Ethernet over Category 3, 4, or 5 t wisted-pair c able.
The IEEE specification for 100 Mbps Fast Ethernet over fi ber-opt ic cable.
The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted-pair c able.
The IEEE specification for 1000 Mbps Gigabit Ethernet over fi ber-opt ic cable.
The IEEE specification for 1000 Mbps Gigabit Ethernet over Category 5 twisted-pair cable.
A feature that allows twisted-pair ports to advertise their capabilities for speed, duplex and flow control. When
connected to a port that als o supports auto-negotiation, t he l i nk can automatically configure itself to the opt i mum
setup.
A feature that allows twisted-pai r ports to sense if a norm al (MDI-X) or uplink (MDI) connection is necess ary and
make the right link . It adjusts for st rai ght -through or crossover cables.
The part of a network used as a primary pat h for transporting traffic between network segments.
The information capacity, measured in bits per second that a channel could trans mit. Bandwidth examples inc l ude
10 Mbps for Ethernet, 100 Mbps for Fast E thernet, and 1000 Mbps (I Gbps) for Gigabit E t hernet.
The signaling rate of a line, that is, the number of trans i tions (voltage or frequency changes) made per second.
Also known as line speed.
A packet sent to all devi ces on a network.
Multiple simultaneous broadcasts that typical l y abs orb al l the available network bandwidth and can cause a
network to fail. Broadcast storms can be due to faul ty network devices or network loops.
Determining whether current solutions can satisfy future demands. Capacity planning includes evaluating potent i al
workload and infrastructure changes.
A term to describe treating different types of traffic with different level s of service priority. Higher priority traffic gets
faster treatment duri ng times of switch c ongestion
A term used to describe two colliding packets in an Ethernet network. Collisions are a part of normal Ethernet
operation, but a sudden prolonged increase in the number of collisions can indicate a problem with a device,
particularly if it is not accompanied by a general inc rease in traffic.
A computer, printer, or server that is connected to a network.
A LAN specificat i on devel oped j oi ntly by Xerox, Intel and Digital Equipment Corporation. Ethernet networks
transmit packets at a rate of 10 Mbps.
An Ethernet system that is designed to operate at 100 Mbps.
An Ethernet system that is designed to operate at 1000 Mbps (1 Gbps ).
A technique for identifyi ng and al ert i ng administrators about connections (such as t hose associated with switch
ports) that are experiencing congesti on or f ai l ure, or exceeding an administrator-defined threshold.
The process of sending a pack et toward its destination using a networking devi ce.
The process of screening a pac ket for certain characteri stics, such as source address, destinati on address, or
protocol. Filtering is used to determine whether traffic is to be forwarded, and can also prevent unauthorized access
to a network or network devices.
A congestion- control mechanism. Congestion is caused by devices sending traffic to already overloaded port on a
switch. Flow control prevents packet loss and temporarily i nhi bi t s devices from generating more traffic until t he
period of congestion ends.
A system that al l ows pac kets to be transmit ted and received at the same ti me and, in effect, doubles the potential
throughput of a link.
A system that al l ows pac kets to transmitted and received, but not at the s ame time. Contrast with full duplex.
Institute of Electrical and Electronic s Engineers. This Am eri can organization was founded in 1963 and sets
standards for comput ers and communicat i ons.
Internet Engineering Task Forc e. An organization responsible for providing engi neeri ng solutions for TCP/IP
networks. In the network management area, this group is responsible for the development of t he SNMP protocol.
Internet Group Management Protocol , the standard for IP mul ticasting in the Internet . IGMP is used to establi sh
host memberships in multicast groups on a single network. (See IP multicast)
Internet Protocol. I P i s a layer 3 network protocol that is the standard for sending data through a network. I P is part
of the TCP/IP set of protocols that describe t he routing of packets to addres sed devices.
Internet Protocol address . A unique identifier for a device at tached to a network using TCP/IP. The address is
written as four octets s eparat ed with peri ods (full-stops), and is made up of a network section, an opti onal subnet
section and a host section.
Sending data to distributed s ervers on a multicast backbone. For large amounts of data, IP Multicast is more
efficient than norm al Internet transmissions, because the server c an broadcast a message to many recipients
simultaneously. Unl i ke traditional Internet traf f i c that requires separate connec tions for each source-dest i nat i on
pair, IP multic asting allows many recipients to share the same sourc e. This means that jus t one set of packets is
transmitted for al l t he destinations.
Local Area Network. A network of end st ations (such as PCs, pri nters, servers) and network devices (hubs and
switches) that cover a relati vely small geographic area (usually not larger than a floor or building).
The ability to distribute traffic across various ports of a device, such as a switch, to provide efficient, optimized
traffic throughout the net work.
An event that occurs when two network devices are connected b
more than one path, thereby causing packets to
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MAC
MAC address
Multicast
Port monitoring
Port speed
Port trunking
Protocol
Quality of Service
Segment
SNMP
Spanning Tree
Spanning Tree Protocol
(STP)
Switch
TCP/IP
Traffic prioritization
Unicast
VLAN
repeatedly cycle around the network and not reach t hei r destination.
Media Access Control. A protocol specified by the IEEE for determini ng which devi ces have access to a network at
any one time.
Media Access Control address; also called hardware or physical addres s. Most devices that connect to a LAN have
a MAC address assigned to them, as they are used to identi f y other devices in a network.
A single packet sent to a specific group of end st ations on a network.
The ability to monitor the traffic passing through a port on a device to analyze network charact eris tics and perform
troubleshooting.
The speed that a port on a device uses to communicat e with anot her devi ce or the network.
The ability to combine multiple ports on a devic e t o create a single, high-bandwidth connection.
A set of rules for communication between devices on a network.
A term to describe del ay, throughput, bandwidth, and other fact ors that measure the servi ce quality provided to a
user.
A section of a LAN that i s connected to the rest of the network using a switch, bridge, or repeater.
Simple Network Management Prot ocol. An IETF standard protoc ol f or managing devices on a TCP/IP net work.
A technique that detect s loops in a network and logically blocks the redundant paths, ens uri ng that only one route
exists between any two LANs.
A protocol that finds the most effici ent path between segments of a m ul ti-looped, bridged network. STP allows
redundant switches and bridges to be used for net work resilience, without the broadcast storms associated with
looping. If a switch or bridge fal l s, a new path to a redundant switch or bridge is opened.
A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments.
Switches are simil ar to bridges, in that they connec t LANs of a different type; however they c onnect more LANs
than a bridge and are generally more sophist i cated.
Transmission Control Protocol/Internet Protocol. This is the nam e f or two of the most well-known protocols
developed for the interconnection of networks. Originally a UNIX standard, TCP/ IP is now supported on almost al l
platforms, and is the protocol of the Internet.
TCP relates to the content of the data traveling through a network — ensuring that the information sent
arrives in one piece when it reaches its destination.
IP relates to the address of the end station to which data is bei ng sent, as well as the address of t he
destination network.
Giving time-criti cal data traffic a higher quali t y of service over other, non-criti cal data traffic.
A packet sent to a s ingl e end station on a network.
Virtual LAN. A logical association that allows users to communi cate as if they were physically connected to a single
LAN, independent of the actual physical configuration of the network.
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APPE NDIX B : TROU BLES HOOTING
This chapter provides inform ation about troubleshooting the NETGEAR ProSafe FS726T Smart Switch. Topics include:
o Troubleshooting chart
o Additional troubleshooting s uggestions
Troubleshooting Chart
Table B-1 lists sym ptoms, causes, and solutions of possible problems.
Table B-1. Troubleshooting Chart
Symptom Cause Solution
Power LED is off.
Link LED is off or intermi ttent.
File transfer is slow or performance
degradation is a problem.
A segment or device is not recognized as
part of the network.
ACT LED is flashing cont i nuously on all
connected ports and the network is
disabled
No power is received Check the power cord connections f or the switch at the
Port connection is not working. Check the crimp on the connectors and make sure that the
Half- or full-duplex setting on the
switch and the connected device
are not the same.
One or more devices are not
properly connected, or cabling does
not meet Ethernet guideli nes.
A network loop (redundant path)
has been created (see Figure 2-3).
switch and the connected device.
Make sure all cables used are correct and comply with
Ethernet specific at i ons.
plug is properly inserted and locked into the port at both the
switch and the connecting devic e.
Make sure all cables used are correct and comply with
Ethernet specific ations. See Appendix D.
Check for a defective adapter card, cable, or port by testing
them in an alternate environment where all products are
functioning.
Make sure the attached device is set to auto negotiate.
Verify that the cabling is correct. Be sure all connectors are
securely positioned in the required ports. Equipment may
have been accidentally disconnec ted.
Break the loop by ensuring that t here i s only one path from
any networked device to any other networked device.
Additional Troubleshooting Suggestions
If the suggestions i n Tabl e B -1 do not resolve your problem, refer to the troubleshooting suggestions i n this section.
Network Adapter Cards
Make sure the network adapter cards installed in the PCs are in working conditi on and the software driver has been installed.
Configuration
If problems occur after altering the network configurat i on, restore the original connections and determine the problem by i mplementing the new
changes, one step at a time. Make sure that cable distances, repeater lim i ts, and other physical aspects of the installation do not exceed the
Ethernet limitat i ons.
Switch Integrity
If required, verify the integrity of the switch by resetting the switch. To reset the switc h, use the Tools> Reset command or remove AC power from
the switch and then reapply AC power. If the probl em continues, contact NETGEAR technical support. In North America, call 1-888-NETGEAR. If
you are outside of North Ameri ca, please refer to the support i nformation card included with your produc t.
Auto Negotiation
The RJ-45 ports negotiate the correct duplex mode and speed if the device at t he other end of the link supports aut o negotiation. If the devic e does
not support auto negotiation, the switch only determines t he speed correctly and the duplex mode default s to half-duplex.
The gigabit port on the Gigabit modul e negotiates speed, duplex mode, and fl ow control , provided that the attached devic e supports autonegotiation.
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APPENDIX C: TECHNICAL SPECIFICA TIONS
This appendix provides technical spec ifications for the NETGEA R P roSafe FS726T Smart Switch.
Network Protocol and Standards Compatibility
IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
IEEE 802.3ab 1000BASE-T
IEEE 802.3z 1000Base-X
IEEE 802.3x flow control
Management
IEEE 802.1Q Static VLAN (Up to 24 ranging from 2 to 4K)
Port-based VLAN (Up to 24)
IEEE 802.1p Class of Service (CoS)
Port-based QoS (options High/ Normal)
Port Trunking - Manual as per IEEE802.3ad Link Aggregation
Interface
24 RJ-45 connectors for 10BASE-T, 100BASE-TX (Auto Uplink™ on all ports)
2 RJ-45 connectors for 10BASE-T, 100BASE-TX and 1000BASE-T (Auto Upl i nk™ on all ports)
1 SFP GBIC module bay
LEDs
Per port (Gigabit): Link/A ctivity, Speed
Per device: Power
Performance Specifications
Forwarding modes: Store-and-forward
Bandwidth: 8.8 Gbps
Network latency: Less than 20 microseconds for 64-byte frames in store-and-forward mode for 100 Mbps to 100 Mbps transmission
Buffer memory: 256 K B embedded memory per unit
Address database size: 8,000 media access c ontrol (MAC) addresses per system
Mean Time Between Failure (MTBF):305,056 hours (~ 34 years)
Power Supply
Power Consumption: 15 W maximum
100-240VAC/50-60 Hz universal input
Physical Specifications
Dimensions (H x W x D): 1.6 x 17.3 x 8.1 in. (43 x 440 x 205 mm )
Weight: 5.5 l bs. (2.5 kg)
Environmental Specifications
Operating temperature: 0 to 40°C (32 to 104°F)
Storage temperature: -20 to 70° C (28 to 158°F)
Operating humidity: 90% maximum relative humidity, non-condensing
Storage humidity: 95% maximum relative humidity, non-condensing
Operating altitude: 3,000 m (10,000 ft) maximum
Storage altitude: 3,000 m (10,000 ft) maximum
Electromagnetic Emissions
CE mark, commercial
FCC Part 15 Class A
VCCI Class A
C-Tick
Electromagnetic Immunity
EN 55022 (CISPR 22), Class A
Safety
CE mark, commercial
UL listed (UL 1950) / cUL IEC950 / EN60950
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Modules
AGM731F 1000BASE-SX SFP GBIC for m ul timode fiber
AGM732F 1000BASE-LX SFP GBIC for single mode fiber
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