Wake On LAN (WOL) speed setting
develop 15 posts since Mar 2, 2010
Hi I have a few rooms of PCs with Intel 82567LM-3 NICs in, and could really do with being able to set the network card speed when they are in power saving modes. The default is 10Mb, and this causes issues with certain multicast tasks.
Broadcom NICs have a "WOLSPEED" setting on the driver - but I cant see an option for anything similar on my Intel NICs.
Tags: driver, speed, wol, nic, 10mb, 82567
develop 15 posts since Mar 2, 2010 1. Re: Wake On LAN (WOL) speed setting Apr 13, 2010 4:55 AM
Is there anywhere I can post a feature request?
Miles Penner 21 posts since Sep 29, 2009 2. Re: Wake On LAN (WOL) speed setting Apr 13, 2010 9:22 AM
Hi develop Consider your request received. Thank you for the suggestion. We are looking into how you can do what you are asking to do. Can you elaborate on the multicast issues you are seeing at 10Mbps, I am curious? Thank you for using Intel Ethernet. Cheers, -- miles
Generated by Jive SBS on 2011-06-05-06:00 1
develop 15 posts since Mar 2, 2010 3. Re: Wake On LAN (WOL) speed setting Apr 13, 2010 10:00 AM in response to: Miles Penner
Thanks Miles AFAIK its a deliberate "power saving" feature isnt it? A powered NIC on a PC that is off uses several times more power to link at 1Gb than at 10 or even 100Mb from what I have read.
The multicast issue is that if I have any off/sleeping machines on the same LAN that I am trying to use Ghost multicast on then Ghost will only run as fast as the slowest node on the network.
Miles Penner 21 posts since Sep 29, 2009 4. Re: Wake On LAN (WOL) speed setting Apr 14, 2010 2:35 PM in response to: develop

develop -

Yes, what you are seeing is a power savings feature called "Reduce Speed On Power Down" which is by default enabled on most platforms by the system manufacturer. Based on your input we are looking into how to provide more flexibility to the user. Generally speaking, the power consumption increases for each link speed increase (i.e., 10GbE > 1GbE > 100Mbps > 10Mbps). Now it is not 10x power for each jump, but the power consumption is higher. When your system is sleeping there is a "power budget" for all devices that are somewhat active, and this includes LAN ports that are configured to Wake On LAN traffic.
Thank you for the input and request for additional flexibility. Cheers, -- miles
Generated by Jive SBS on 2011-06-05-06:00 2
develop 15 posts since Mar 2, 2010 5. Re: Wake On LAN (WOL) speed setting Apr 30, 2010 4:56 PM in response to: Miles Penner
*Any update on this? I am having some annoying WOL and multicast issues on Win7. 2008R2 with the same driver behaves, which is annoying. The driver shipped with the OS doesnt have WOL. The latest Dell Optiplex 960 (actually an Intel installer IIRC) breaks things like DHCP and has drops.
The original Dell supplied driver works best, but still drops (on W7) down to 10Mb during power saving. I tried to get round this by setting the (Netgear) switches to 1Gb only, but that then broke WOL as the card seems to switch off rather than negotiate to 1Gb! Argh! Set the switch back to Auto and you get 10Mb - which then makes all the local Ghost multicast traffic run at 10Mb. Not fun when you have rooms of 20GB images to push out on a regular basis.
*appreciate not much time has past but these machines are in production so I am looking for solutions and this seems the obvious one. Even setting to 100Mb would be fine when sleeping.
Message was edited by: develop
Miles Penner 21 posts since Sep 29, 2009 6. Re: Wake On LAN (WOL) speed setting May 1, 2010 9:36 AM in response to: develop
Hi develop We are working on getting your request into our feature pipeline. In the mean time, you mentioned that you could restrict the autoneg advertisements on your netgear switch; is it possible for you to change the autoneg advertisements to include only 1GbE and 100Mbps settings? If so, this should make it so that you will link at 100Mbps while the machine is asleep rather than linking at 10Mbps.
Generated by Jive SBS on 2011-06-05-06:00 3
The reason that 1GbE is not available when the system is sleeping is due to the system power availability when the system is sleeping. I could get to the specifics, but to maintain the 1GbE link while in a sleep state it will consume most of the available power budget for the machine.
I hope that your netgear switch will allow you to exclude 10Mbps in the autoneg advertisements. Let me know how that works out. Thank you for using Intel Ethernet. Cheers, - miles
develop 15 posts since Mar 2, 2010 7. Re: Wake On LAN (WOL) speed setting May 4, 2010 3:46 AM in response to: Miles Penner

Hi - thanks for the explanation there, it makes sense hearing why things are set as they are (sleep power budget).
Unfortunately I cant see a way to set my switches (Netgear GS724Tv2) to disable 10Mb, they only seem to allow a specific setting per port or auto. So for now the only way I can see is to set the ports to 100Mb (making everything equally slow) or have a NIC/BIOS option to not use 10Mb.
develop 15 posts since Mar 2, 2010 8. Re: Wake On LAN (WOL) speed setting Jun 13, 2010 3:58 AM in response to: Miles Penner
Hi - possibly an obvious answer but anything to report yet?
QuimaxW 1 posts since Aug 27, 2010 9. Re: Wake On LAN (WOL) speed setting Aug 27, 2010 12:41 PM
We have this issue here in a configuration center where we do LOTS of Multicast imaging.
Generated by Jive SBS on 2011-06-05-06:00 4
Our solution has been to enable IGMP on our switches (which, yes, involed replacing a couple of switches). Enabling the IGMP forces the multicast packets to just the systems that are receiving them, so the 'off' systems don't slow down the other imaging sessions.
Otherwise, I'd check your switch to see if there is an option to set port speed to "Auto 100 1000."
develop 15 posts since Mar 2, 2010 10. Re: Wake On LAN (WOL) speed setting Aug 31, 2010 8:00 AM in response to: QuimaxW
Hi - thanks for the tip. Unfortunately not all our switches are managed, and only have 100/1000/auto as an option even though they support 10. Blame Netgear. Blame Dell. Or get Intel to add a feature Broadcom offer? Its only the NICs that changed after upgrading PCs, the rest of the infrastructure is the same.
develop 15 posts since Mar 2, 2010 11. Re: Wake On LAN (WOL) speed setting Jan 26, 2011 3:03 AM in response to: Miles Penner
Did this ever get added to the feature pipeline?
If 1GbE is not available when sleeping then does that mean if its plugged into a switch that only supports 1GbE that it wont sleep?
I would just like 100Mb as an option, its such a pain to have to switch on every PC on the network just to do some multicasting. If you have seen the Symantec Ghost Console forums there are frequent posts from admins complaining about slow multicast speeds who probably havent realised what is going on. I did start replying to some but there is only so much time.
Generated by Jive SBS on 2011-06-05-06:00 5
Miles Penner 21 posts since Sep 29, 2009 12. Re: Wake On LAN (WOL) speed setting Jan 28, 2011 5:47 PM in response to: develop

Hi develop -

Thanks for posting back. Yes, your suggestion did make it into the pipeline and the ability to link at 100Mbps while the system is sleeping will be available in approximately a month. There will be an option to disable "Reduce Speed on Power Down" which was not available on all LAN on motherboards. I do not know the exact date yet of the release, but I will get some more details out as soon as I get them.

As for your question about switches that only support 1GbE. Yes, you will not be able to link to those switches when you sleep because maintaining a 1GbE link for wake up consumes too much power. Perhaps when Energy Efficient Ethernet is available this will change as idle connections will not consume full power when idle.
Thank you for your suggestions and thank you for using Intel Ethernet. Cheers, -- miles
jwposts since Apr 8, 2011 13. Re: Wake On LAN (WOL) speed setting Apr 8, 2011 5:53 PM in response to: Miles Penner
Hi Miles, I have several PC's with 82567LM-3. I'd like to change the WOL speed to 100M. Just wonder if the option you mentioned is available now. Where can I download the driver?

Regards, --John

Generated by Jive SBS on 2011-06-05-06:00 6

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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. 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.
EN Declaration of Conformance This is to certify that the NETGEAR GS724T Gigabit Smart Switch is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55024 Class A (CISPR 22). EN and EN Statements This is to certify that the NETGEAR GS724T Gigabit Smart Switch is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 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. Page 1 of 20
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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 10/100/1000 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 BACKBONE SWITCHING......12 CHAPTER 4: INSTALLATION......13 STEP 1: PREPARING THE SITE......13 STEP 2: INSTALLING THE SWITCH......13 STEP 3: CHECKING THE INSTALLATION......14 STEP 4: CONNECTING DEVICES TO THE SWITCH.....14 STEP 5: INSTALLING AN SFP GBIC MODULE......14 STEP 6: APPLYING AC POWER......15 APPENDIX A: GLOSSARY.......16 APPENDIX B: TROUBLESHOOTING......18 TROUBLESHOOTING CHART......18 ADDITIONAL TROUBLESHOOTING SUGGESTIONS.....18 APPENDIX C: TECHNICAL SPECIFICATIONS......19

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Figures
Figure 1-1. Package Contents......7 Figure 2-1. Front Panel of the GS724T Gigabit Smart Switch.....8 Figure 2-2. Back Panel of the GS724T Gigabit Smart Switch....8 Figure 3-1. Example of Desktop Switching......11 Figure 3-2. Example of Backbone Switching.....12 Figure 4-1. Attaching Mounting Brackets......14 Figure 4-2. Connecting Devices to the Switch.....14 Figure 4-3. Installing a Gigabit Ethernet Module into GS724T.....15

Tables

Table 2-1. Front Panel LEDs:......9 Table 4-1. Site Requirements......13 Table B-1. Troubleshooting Chart......18

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CHAPTER 1: INTRODUCTION
Congratulations on your purchase of the NETGEAR GS724T 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 24 RJ-45 ports with two built-in Small Form-Factor Pluggable (SFP) GBIC slots on the front panel of the switch that 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 GS724T Gigabit Smart Switch and provides the following information: Overview Switch Features Package contents

Overview

Your NETGEAR GS724T Gigabit Smart Switch provides 24 twisted-paired ports with two built-in Small Form-Factor Pluggable (SFP) GBIC slots that support non-blocking 10/100/1000 networks. Using this Gigabit switch, 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 Link to high-speed servers Provide 10/100/1000 copper and fiber connectivity
Your NETGEAR GS724T 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 switchs many capabilities can be viewed and used in a simple and intuitive manner. The switchs 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 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. Additionally, the NETGEAR ProSafeGS724T Smart Switch also supports SNMP and can be managed using network management software, such as the NETGEAR ProSafe NMS 100.
Your NETGEAR GS724T 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 24 auto-sensing 10/100/1000 Ethernet ports with two SFP GBIC slots. 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, 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 modules.

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Features
The following list identifies the key features of the NETGEAR GS724T Gigabit Smart Switch. Twenty-four 10/100/1000 Mbps auto-sensing Gigabit Ethernet switching ports Two SFP GBIC combo Gigabit Ethernet slots for optional fiber connectivity Automatic detection of SFP GBIC modules Reset Button. Factory Defaults Button. Administrative switch management including: IEEE 802.1Q Tag VLAN with up to 24 VIDs ranging in 2 to 4K Port-based VLAN with up to 24 groups, any one port can belong to different VLAN groups IEEE 802.1p QoS support, 4 priority queues per port IEEE 802.3ad Link Aggregation support Web-based management with embedded HTTP server provided Supports port-setting function which allows user to enable/disable each port, set speed, duplex mode and device follow control Support Auto-Discovery application program for discovering and managing the switches on the network Support flash upgrading, configuration backup/restore and factory reset IEEE 802.1D Spanning Tree Protocol RFC 1157 SNMP v1

To simplify the procedure for attaching devices, all RJ-45 ports support Auto Uplink. This technology lets you attach devices to the RJ-45 ports either straight-through or crossover cables. When you insert a cable into the switchs RJ-45 port, the switch automatically: Senses whether the cable is a straight-through or crossover cable, and Determines whether the link to the attached device 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 requiring user intervention. In this way, the Auto Uplink technology compensates for setting uplink connections, while eliminating concern about whether to use crossover or straight-through cables when attaching devices.

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SFP GBIC Module
The two module bays accommodate standard SFP GBIC modules, such as the AGM731F or AGM732F from NETGEAR, allowing you to have fiber connections on your network. The module bays are combo ports, sharing a connection with the last two RJ-45 ports, port 23T and 24T. Being a combo port, only one type of connection can be active at any given time. For example, both port 23T and 23F cannot be used at the same time. If both connectors are plugged in at the same time, the fiber port (23F) will be active. The SFP GBIC bay accommodates a standard SFP GBIC module, which has an LC connector that is compatible with the IEEE 802.3Z 1000 BaseSX Standard.

LED Descriptions

The front panel of the NETGEAR GS724T Gigabit Smart Switch has LEDs that provide a quick and accurate display of link, port speed, and activity. Table 2-1 summarizes the LEDs on the switch. Table 2-1. Front Panel LEDs: Label Power Link/ACT (the port number) Speed Color Green Green Green Activity On OFF On Blinking OFF On On OFF On OFF On Blinking OFF Description Power is supplied to the switch. Power is disconnected. Port has a valid link connection. Data transmission is occurring on the port. No 10/100/1000Mbps link is established on the port

Yellow

FDX Green
A valid 1000Mbps link is established on the port
A valid 100Mbps link is established on the port No 100/1000Mbps link is established on the port

SFP (Mini GBIC) LED

A full-duplex link mode is established on the port No full-duplex link mode is established, or a half-duplex link mode is established on the port A valid 1000Mbps link is established on the port Data transmission is occurring on the port. No 1000Mbps link is established on the port

Reset Button

The GS724T has a Reset Button to trigger a hardware reset of the switch. This is equivalent to turning the power off and back on. The last saved configuration will be loaded onto the switch as it resets. To press the Reset Button, insert a small device such as a paper clip into the opening to press the recessed button. The LEDs on the switch should go out and then come back on as the switch goes through its Power On Switch Test (POST).

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Factory Defaults Button
The GS724T 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, including the password, VLAN settings and port configurations.

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CHAPTER 3: APPLICATIONS
Your NETGEAR GS724T Gigabit Smart 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. This chapter shows how the switch can be used in various network environments. Topics include: Desktop switching Backbone switching

Desktop Switching

Your NETGEAR GS724T Gigabit Smart Switch can be used as desktop switch to build a small network that enables users to have 1000 Mbps access to a file server. With full-duplex enabled, the switch port connected to the server or PC can provide 2000 Mbps throughput.
Figure 3-1. Example of Desktop Switching

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Backbone Switching
Your NETGEAR GS724T Gigabit Smart Switch can be used as backbone switch to build a small network that enables users to have lightening fast access to servers and the rest of the network.
Figure 3-2. Example of Backbone Switching

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CHAPTER 4: INSTALLATION
This chapter describes the installation procedures for your NETGEAR GS724T Gigabit Smart Switch. Switch installation involves the following steps: Step 1: Preparing the site Step 2: Installing the switch Step 3: Checking the installation Step 4: Connecting devices to the switch Step 5: Installing an SFP GBIC module Step 6: Apply AC power Step 7: Switch management through a Web Brower or the PC Utility for initial configuration

Step 1: Preparing the Site
Before you install your switch, be sure your operating environment meets the operating environment requirements in Table 4-1. Table 4-1. Site Requirements Characteristics Mounting Desktop installations: Rack-mount installations: Access Power source Environmental Temperature: Operating humidity: Ventilation: Requirements Provide a flat table or shelf surface. Use a 19-inch (48.3-centimeter) EIA standard equipment rack that is grounded and physically secure. You also need the rack-mount kit supplied with your switch. Locate the switch in a position that lets you access the front panel RJ-45 ports, view the front panel LEDs, and access power connector. Provide a power source within 6 feet (1.8 meters) of the installation location. Power specifications for the switch are shown in Appendix C. Be sure the AC outlet is not controlled by a wall switch, which can accidentally turn off power to the outlet and the switch. Install the switch in a dry area, with ambient temperature between 0 and 40C (32 and 104F). Keep the switch away from heat sources such as direct sunlight, warm air exhausts, hot-air vents, and heaters. The installation location should have a maximum relative humidity of 90%, non-condensing. Do not restrict airflow by covering or obstructing air inlets on the sides of the switch. Keep at least 2 inches (5.08 centimeters) free on all sides for cooling. Be sure there is adequate airflow in the room or wiring closet where you intend to install the switch. Keep the switch at least 6 ft (1.83 m) away from nearest source of electromagnetic noise, such as a photocopy machine.

Operating conditions:

Step 2: Installing the Switch
You can install your NETGEAR GS724T Gigabit Smart Switch on a flat surface or in a standard 19-inch rack. 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 between each stacked switch for ventilation. Installing the Switch in a Rack To install the switch in a rack, use the following procedure (and refer to Figure 4-1). To perform this procedure, you need the 17-inch rack-mount kit supplied with your switch. 1. 2. 3. 4. 5. Attach the supplied mounting brackets to the side of the switch. Insert the screws provided in the rack-mount kit through each bracket and into the bracket mounting holes in the switch. Tighten the screws with a #1 Phillips screwdriver to secure each bracket. Align the mounting holes in the brackets with the holes in the rack, and insert two pan-head screws with nylon washers through each bracket and into the rack. 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 o o o Inspect the equipment thoroughly. Verify that all cables are installed correctly. Check cable routing to make sure cables are not damaged or creating a safety hazard. Be sure all equipment is mounted properly and securely.
Step 4: Connecting Devices to the Switch
The following procedure describes how to connect devices to the switchs RJ-45 ports. Your NETGEAR GS724T Gigabit Smart Switch contains Auto Uplink technology, which allows you to attach devices using either straight-through or crossover cables.
Figure 4-2. Connecting Devices to the Switch
Connect each device to an RJ-45 network port on the switchs front panel (see Figure 4-4). Use Category 5 (Cat5) unshielded twisted-pair (UTP) cable terminated with an RJ-45 connector to make these connections. Note: Ethernet specifications limit the 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 install an SFP Gigabit Ethernet module in the switchs Gigabit module bays. Standard SFP GBIC modules are sold separately from the GS724T. If you do not want to install an SFP GBIC module at this time, skip this procedure. To install an SFP GBIC module: o Insert the SFP module into the SFP module bay. Press firmly to ensure the module seats into the connector.
To install a second Gigabit Ethernet module, repeat this procedure

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Figure 4-3. Installing a Gigabit Ethernet Module into GS724T
Step 6: Applying AC Power
NETGEAR GS724T Gigabit Smart Switches do not have an ON/OFF switch; the only method of applying or removing AC power is by connecting or disconnecting the power cord. Before you connect the power cord, select an AC outlet that is not controlled by a wall switch, which can turn off power to the switch. After you select an appropriate outlet, use the following procedure to apply AC power. Connect the female end of the supplied AC power adapter cable to the power receptacle on the back of the switch. Connect the 3-pronged end of the AC power adapter cable to a grounded 3-pronged AC outlet. When you apply power, the Power LED on the switchs front panel will be Green. If the Power LED does not go on, check that the power cable is plugged in correctly and that the power source is good. If this does not resolve the problem, refer to Appendix B, Troubleshooting.
Step 7: Switch Management through a Web Browser or the PC Utility for Initial Configuration

Your NETGEAR GS724T Gigabit Smart Switch contains software for viewing, changing, and monitoring the way it works. This management software is not required for the switch to work. You can use the built-in RJ-45 Gigabit ports without using the management software. However, the management software can let you setup VLAN and Trunking features and also improve the efficiency of the switch and, as a result, improve its overall performance as well as the performance 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: GLOSSARY
This appendix defines terms associated with switching technology. 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4, or 5 twisted-pair cable. 100BASE-FX The IEEE specification for 100 Mbps Fast Ethernet over fiber-optic cable. 100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted-pair cable. 1000BASE-SX The IEEE specification for 1000 Mbps Gigabit Ethernet over fiber-optic cable. 1000BASE-T 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 Auto-negotiation connected to a port that also supports auto-negotiation, the link can automatically configure itself to the optimum setup. A feature that allows twisted-pair ports to sense if a normal (MDI-X) or uplink (MDI) connection is necessary and Auto Uplink make the right link. It adjusts for straight-through or crossover cables. Backbone The part of a network used as a primary path for transporting traffic between network segments. The information capacity, measured in bits per second that a channel could transmit. Bandwidth examples include Bandwidth 10 Mbps for Ethernet, 100 Mbps for Fast Ethernet, and 1000 Mbps (I Gbps) for Gigabit Ethernet. The signaling rate of a line, that is, the number of transitions (voltage or frequency changes) made per second. Baud Also known as line speed. Broadcast A packet sent to all devices on a network. Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a Broadcast storm network to fail. Broadcast storms can be due to faulty network devices or network loops. Determining whether current solutions can satisfy future demands. Capacity planning includes evaluating potential Capacity planning workload and infrastructure changes. A term to describe treating different types of traffic with different levels of service priority. Higher priority traffic gets Class of Service faster treatment during times of switch congestion A term used to describe two colliding packets in an Ethernet network. Collisions are a part of normal Ethernet Collision 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 increase in traffic. End station A computer, printer, or server that is connected to a network. A LAN specification developed jointly by Xerox, Intel and Digital Equipment Corporation. Ethernet networks Ethernet transmit packets at a rate of 10 Mbps. Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps. Gigabit Ethernet An Ethernet system that is designed to operate at 1000 Mbps (1 Gbps). A technique for identifying and alerting administrators about connections (such as those associated with switch Fault isolation ports) that are experiencing congestion or failure, or exceeding an administrator-defined threshold. Forwarding The process of sending a packet toward its destination using a networking device. The process of screening a packet for certain characteristics, such as source address, destination address, or Filtering 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 Flow control switch. Flow control prevents packet loss and temporarily inhibits devices from generating more traffic until the period of congestion ends. A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential Full-duplex throughput of a link. Half-duplex A system that allows packets to transmitted and received, but not at the same time. Contrast with full duplex. Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets IEEE standards for computers and communications. Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/IP IETF networks. In the network management area, this group is responsible for the development of the SNMP protocol. Internet Group Management Protocol, the standard for IP multicasting in the Internet. IGMP is used to establish IGMP host memberships in multicast groups on a single network. (See IP multicast) Internet Protocol. IP is a layer 3 network protocol that is the standard for sending data through a network. IP is part IP of the TCP/IP set of protocols that describe the routing of packets to addressed devices. Internet Protocol address. A unique identifier for a device attached to a network using TCP/IP. The address is IP address written as four octets separated with periods (full-stops), and is made up of a network section, an optional subnet section and a host section. Sending data to distributed servers on a multicast backbone. For large amounts of data, IP Multicast is more efficient than normal Internet transmissions, because the server can broadcast a message to many recipients IP multicast simultaneously. Unlike traditional Internet traffic that requires separate connections for each source-destination pair, IP multicasting allows many recipients to share the same source. This means that just one set of packets is transmitted for all the destinations. Local Area Network. A network of end stations (such as PCs, printers, servers) and network devices (hubs and LAN switches) that cover a relatively 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 Load balancing traffic throughout the network. Loop An event that occurs when two network devices are connected by 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
repeatedly cycle around the network and not reach their destination. Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at any one time. Media Access Control address; also called hardware or physical address. Most devices that connect to a LAN have a MAC address assigned to them, as they are used to identify other devices in a network. A single packet sent to a specific group of end stations on a network. The ability to monitor the traffic passing through a port on a device to analyze network characteristics and perform troubleshooting. The speed that a port on a device uses to communicate with another device or the network. The ability to combine multiple ports on a device to create a single, high-bandwidth connection. A set of rules for communication between devices on a network. A term to describe delay, throughput, bandwidth, and other factors that measure the service quality provided to a user. A section of a LAN that is connected to the rest of the network using a switch, bridge, or repeater. Simple Network Management Protocol. An IETF standard protocol for managing devices on a TCP/IP network. A technique that detects loops in a network and logically blocks the redundant paths, ensuring that only one route exists between any two LANs. A protocol that finds the most efficient path between segments of a multi-looped, bridged network. STP allows redundant switches and bridges to be used for network resilience, without the broadcast storms associated with looping. If a switch or bridge falls, 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 similar to bridges, in that they connect LANs of a different type; however they connect more LANs than a bridge and are generally more sophisticated. Transmission Control Protocol/Internet Protocol. This is the name for two of the most well-known protocols developed for the interconnection of networks. Originally a UNIX standard, TCP/IP is now supported on almost all 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 being sent, as well as the address of the destination network.

TCP/IP

Traffic prioritization Unicast VLAN
Giving time-critical data traffic a higher quality of service over other, non-critical data traffic. A packet sent to a single end station on a network. Virtual LAN. A logical association that allows users to communicate as if they were physically connected to a single LAN, independent of the actual physical configuration of the network.

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APPENDIX B: TROUBLESHOOTING
This chapter provides information about troubleshooting the NETGEAR GS724T Gigabit Smart Switch. Topics include: o Troubleshooting chart o Additional troubleshooting suggestions

Troubleshooting Chart

Table B-1 lists symptoms, causes, and solutions of possible problems. Table B-1. Troubleshooting Chart Symptom Power LED is off. Cause No power is received Solution Check the power cord connections for the switch at the switch and the connected device. Make sure all cables used are correct and comply with Ethernet specifications. Check the crimp on the connectors and make sure that the plug is properly inserted and locked into the port at both the switch and the connecting device. Make sure all cables used are correct and comply with Ethernet specifications. 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 disconnected. Break the loop by ensuring that there is only one path from any networked device to any other networked device.
Link LED is off or intermittent.
Port connection is not working.
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 continuously on all connected ports and the network is disabled
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 guidelines. A network loop (redundant path) has been created (see Figure 2-3).
Additional Troubleshooting Suggestions
If the suggestions in Table B-1 do not resolve your problem, refer to the troubleshooting suggestions in this section. Network Adapter Cards Make sure the network adapter cards installed in the PCs are in working condition and the software driver has been installed. Configuration If problems occur after altering the network configuration, restore the original connections and determine the problem by implementing the new changes, one step at a time. Make sure that cable distances, repeater limits, and other physical aspects of the installation do not exceed the Ethernet limitations. Switch Integrity If required, verify the integrity of the switch by resetting the switch. To reset the switch, use the Tools> Reset command or remove AC power from the switch and then reapply AC power. If the problem continues, contact NETGEAR technical support. In North America, call 1-888-NETGEAR. If you are outside of North America, please refer to the support information card included with your product. Auto Negotiation The 10/100/1000 Mbps ports negotiate the correct duplex mode and speed if the device at the other end of the link supports auto negotiation. If the device does not support auto negotiation, the switch only determines the speed correctly and the duplex mode defaults to half-duplex. The gigabit port on the Gigabit module negotiates speed, duplex mode, and flow control, provided that the attached device supports autonegotiation.

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APPENDIX C: TECHNICAL SPECIFICATIONS
This appendix provides technical specifications for the NETGEAR GS724T Gigabit 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/Low/ Lowest) Port Trunking - Manual as per IEEE802.3ad Link Aggregation IEEE 802.1D Spanning Tree Protocol RFC 1157 SNMP v1 Interface 24 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T (Auto Uplink on all ports) with 2 SFP GBIC module bays that share with 2 RJ-45 ports for fiber connectivity LEDs Per port (Gigabit): Link/Activity, Speed, FDX/HDX Per device: Power Performance Specifications Forwarding modes: Store-and-forward Bandwidth: 48 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 KB embedded memory per unit Address database size: 8,000 media access control (MAC) addresses per system Mean Time Between Failure (MTBF): 115,221 hours (~ 13 years) Power Supply Power Consumption: 29 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: 6.0 lbs. (2.7 kg) Environmental Specifications Operating temperature: 0 to 40C (32 to 104F) Storage temperature: -20 to 70C (-4 to 158F) 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 CSA certified (CSA 22.2 #950)

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Modules AGM731F 1000BASE-SX SFP GBIC for multimode fiber AGM732F 1000BASE-LX SFP GBIC for single mode fiber

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