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D-Link DGS-1008D Application Note

1. 1 ETHERNET TECHNOLOGY eE n etn eee ene e Pedo vae eee eene E a a EE aaia kaamka Fast Ethernet Technology Gigabit Ethernet Technology ERE REED Re I SR re C E GL A 1 802 AND O LO NETE AE AES DEEE vac eR E idet 1 Advantages QoS rios s Rep Dee ERT Ren 1 Understanding eine rei e eee taie reiten SWITCHING TECHNOLOGY SWITCH DESCRIPTION haee tete tente obtener eene f FOGUUTES m M FRONT P ANEL COMPONENTS LED Indicaiors ERE EPI der ERE E e E EEG eats REAR PANEL tree Re RR HRREPRRHEMI ERR HERI REPAS A REEL YER IELAS Jl yr rw UUO 6 Package Contents ius oie EUR ROUEN OI 6 BEFORE Y OU CONNECT TO THE NETWORK ERE tk de e E a Oh ER E RO ERR SE Pe dd 6 MOUNTING THE SWITCHAON A gt WALE AI ji ATTACHING THE RUBBER FEET POWER ON AUA UKU OE KA AE WA AAH EESE CONNECTING THE SW LET C ai Aa 9 SWITCH LO END INODE de t oes eee den ded toes cest even teet edes feces SWITCH TO HUB OR SWITCH eee CONNECTING TO NETWORK B ACKBONE OR SERVER TECHNICAL SPECIFICATIONS aa Wa R SNES 11 GLOSSARY detecte petes deren e sah ERR Aaa 13 WARRANTY A
2. who will attempt to assist the customer in resolving any suspected defects with the product If the product is considered defective the customer must obtain a peun Marena Authorization RMA number by completing the RMA form and entering the assigned Case ID Number at ps rma dlink com After number is issued the defective product must packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit and the RMA number must be prominently marked on the outside of the package Do not include any manuals or accessories in the shipping package D Link will only replace the defective portion of the product and will not ship back any accessories The customer is responsible for all in bound shipping charges to DLink No Cash on Delivery COD is allowed Products sent COD will either be rejected by D Link or become the property of D Link Products shall be fully insured by the customer and shipped to D Link Systems Inc 17595 Mt Herrmann Fountain Valley CA 92708 DLink will not be held responsible for any packages that are lost in transit to DLink The repaired or replaced packages will be shipped to the customer via UPS Ground or any common carrier selected by DLink Return shipping charges shall be prepaid by DLink if you use an address in the United States otherwise we will ship the product to you freight collect Expedited shipping is available upon request and
3. 3 4 5 or 5e UTP STP cable A 100BASE T hub or switch can be connected to the Switch via a twisted pair Category 5 UTP STP cable A 1000BASET switch can be connected to the Switch via a twisted pair Category 5e or better UTP STP cable D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Figure 3 2 Switch connected to a port on a hub or switch using either a straight or crossover cable any standard Ethernet cable is fine Connecting To Network Backbone or Server Any of the five Gigabit Ethernet ports are ideal for uplinking to a network backbone or network server Figure 3 3 Connection to a Server 10 10 D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Appendix A Technical Specifications Standards IEEE 802 3ab 1000BASE T IEEE 802 3u 100BASE TX IEEE 802 3 10BASE T IEEE 802 3x Flow Control IEEE 802 1p priority Queues Data Transfer Ethernet 10Mbps Half duplex 20Mbps Full duplex Fast Ethernet 100Mbps Half duplex 200Mbps Full du plex Gigabit Ethernet 2000Mbps Full duplex Network Cables Ethernet 2 pair UTP Cat 3 4 5 Unshield Twisted Pair UTP Cable Fast Ethernet 2 pair UTP Cat 5 Unshield Twisted Pair UTP Cable Gigabit Ethernet 4 pair UTP Cat 5 Unshield Twisted Pair UTP Cable Number of Ports Eight 10 100 1000BASE T Gigabit Ethernet ports NC d and Environmental PF n DC 7 5V 1A This unit is to be used with a power supply li
4. A group of location and topology independent devices that communicate as if they are on a comm on physical LAN VLT Virtual LAN Trunk A Switchto Switch link which carries traffic for all the VLANs on each Switch VT100 A type of terminal which uses ASCII characters VT100 screens have a text based appearance 14 D Link DGS 1008D Unmanaged Gigabit Ethernet Switch D Link Building Networks for People Subject to the termsand conditions set forth herein DLink Systems Inc D Link provides this Limited Warranty Only to the person or entity that originally purchased the product from D Link or its authorized reseller or distributor and Only for products purchased and delivered within the fifty states of the United States the District of Columbia U S Possessions or Protectorates U S Military Installations or addresses with an APO or FPO Limited Warranty D Link warrants that the hardware portion of the D Link product described below Hardware will be free from material defects in workmanship and materials under normal use from the date of original retail purchase of the product for the period set forth below Warranty Period except as otherwise stated herein Hardware excluding power supplies and fans Five 5 Years Power supplies and fans One 1 Year Spare parts and spare kits Ninety 90 days The customer s sole and exclusive remedy and the entire liability of D Link and its supplie
5. Manager ONovell NMS ONetView 6000 OOthers 6 What network medium media does your organization use OFiber optics OThick coax Ethernet LIThin coax Ethernet O 10BASE T UTP STP 10 0100BASE T4 O 100VGAnyLAN OOthers 7 What applications are used on your network ODesktop publishing O Spreadsheet OWord processing O Database management O Accounting O Others 8 What category best describes your company DAerospace LIEngineering O Education OFinance O Legal Olnsurance Real Estate LIManufacturing ORetail Chainstore Wholesale O Government LITransportation Utilities Communication OVAR O System house company O Other 9 Would you recommend your D Link product to a friend O Don t know yet 10 Your comments on this product D Link DGS 1008D Unmanaged Gigabit Ethernet Switch D Link DGS 1008D Unmanaged Gigabit Ethernet Switch
6. between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help For detailed warranty Information applicable to products purchased outside the United States please contact the corresponding local D Link office D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Register online your D Link product at http support dlink com register Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights International Offices U S A 17595 Mt Herrmann Street Fountain Valley CA 92708 TEL 714 885 6000 Fax 866 743 4905 URL www dlink com Canada 2180 Winston Park Drive Oakville Ontario L6H 5W1 Canada TEL 1 905 8295033 FAX 1 905 8295223 URL www dlink ca Europe U K 4th Floor Merit House Edgware Road Colindale London NW9 5AB UK TEL 44 20 8731 5555 FAX 44 20 8731 5511 URL www dlink co uk Germany Schwalbacher Strasse 74 D 65760 Eschborn Germany TEL 49 6196 77990 FAX 49 6196 7799300 URL www dlink de France Le Florilege 2 Allee de la Fresnerie 78330 Fontenay le Fleury France TEL 33 1 30238688 FAX 33 1 30238689 URL www dlink france fr Netherlands Weena 290 3012NJ Rotterdam Netherlands Tel 3 1 10 282 1445 FAX 31 10 282 1331 URL www dlink benelux com Belgium Rue
7. critical traffic can be limited so bandwidth can be saved The Switch has separate hardware queues on every physical port to which packets from various applications are mapped to and assigned a priority The illustration below shows how 802 1P priority queuing is implemented on the Switch The eight IEEE 802 1P priority levels defined by the standard are mapped to the four class queues used in the Switch D Link DGS 1008D Unmanaged Gigabit Ethernet Switch How 802 1p works 4 Priority Queues Queues Class 0 Class 1 N Mapping QoS on the Switch Priority The picture above shows the default priority setting for the Switch Class 3 has the highest priority of the four priority queues on the Switch In order to implement QoS the user is required to instruct the Switch to examine the header of a packet to see if it has the proper identifying tag tagged Then the user may forward these tagged packets to designated queues on the Switch where they will be emptied based on priority The support strict mode for 802 1p QoS The untagged pkt will follow the priority 0 to work i e class 1 Understanding QoS The Switch has four priority queues These priority queues are labeled as 3 the high queue to 0 the lowest queue The eight priority tags specified in IEEE 802 1p are mapped to the Switch s priority tags as follows e Priority O is assigned to the Switch s Q1 queue e Priority 1 is assigned to the Switch s Q
8. or other sales in which D Link the sellers or the liquidators expressly disclaim their warranty obligation pertaining to the product While necessary maintenance or repairs on our Product can be performed by any company we recommend that you use only an Authorized DLink Service Office Improper or incorrectly performed maintenance or repair voids this Limited Warranty Disclaimer of Other Warranties EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN THE PRODUCT IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO THE DURATION OF THE APPLICABLE WARRANTY PERIOD SET FORTH ABOVE EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN THE ENTIRE RISK AS TO THE QUALITY SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT Limitation of Liability TO THE MAXIMUM EXTENT PERMITTED BY LAW DLINK IS NOT LIABLE UNDER ANY CONTRACT NEGLIGENCE STRICT LIABILITY OR OTHER LEGAL OR EQUITABLE THEORY FOR ANY LOSS OF USE OF THE PRODUCT INCONVENIENCE OR DAMAGES OF ANY CHARACTER WHETHER DIRECT SPECIAL INCIDENTAL CONSEQUENTIAL INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOSS OF GOODWILL LOSS OF REVENUE OR PROFIT WORK STOPPAGE OMPUTER FAILURE OR MAL
9. power supply before connecting the power cable to the power supply Unplug the power cable before removing the power supply If the system has multiple sources of power disconnect power from the system by unplugging all power cables from the power supplies Move products with care ensure that all casters and or stabilizers are firmly connected to the system Avoid sudden stops and uneven surfaces General Precautions for Rack Mountable Products Observe the following precautions for rack stability and safety Also refer to the rack installation documentation accompanying the system and the rack for specific caution statements and procedures Systems are considered to be components in a rack Thus component refers to any system as well as to various peripherals or supporting hardware CAUTION Installing systems in a rack without the front and side stabilizers installed could cause the rack to tip over potentially resulting in bodily injury under certain circumstances Therefore always install the stabilizers before installing components in the rack After installing system components in a rack never pull more than one component out of the rack on its slide assemblies at one time The weight of more than one extended component could cause the rack to tip over and may result in serious injury Before working on the rack make sure that the stabilizers are secured to the rack eztended to the floor and that the full w
10. provided shipping charges are prepaid by the customer D Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements or for which an RMA number is not visible from the outside of the package The product owner agrees to pay DLink s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements or that is determined by D Link not to be defective or non conforming D Link DGS 1008D Unmanaged Gigabit Ethernet Switch What Is Not Covered The Limited Warranty provided herein by D Link does not cover Products that in DLink s judgment have been subjected to abuse accident alteration modification tampering negligence misuse faulty installation lack of reasonable care repair or service in any way that is not contemplated in the documentation for the product or if the model or serial number has been altered tampered with defaced or removed Initial installation installation and removal of the product for repair and shipping costs Operational adjustments covered in the operating manual for the product and normal maintenance Damage that occurs in shipment due to act of God failures due to power surge and cosmetic damage Any hardware software firmware or other products or services provided by anyone other than DLink and Products that have been purchased from inventory clearance or liquidation sales
11. D Link DGS 1008D 8 Port 10 100 1000Mbps Gigabit Ethernet Switch Manual Rev 3 00 D Link Building Networks for People Eo RECYCLABLE D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Information in this document is subject to change without notice 2006 D Link Corporation All rights reserved Reproduction in any manner whatsoever without the written permission of D Link Corporation is strictly forbidden Trademarks used in this text D Link and the D LINK logo are trademarks of DLink Corporation Microsoft and Windows are registered trademarks of Microsoft Corporation Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products DLink Corporation disclaims any proprietary interest in trademarks and trade names other than its own January 2006 WW P N 2907DG1008D6002 USA P N 2907DG1008D6003 FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to
12. FUNCTION FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH DLINK S PRODUCT IS CONNECTED WITH LOSS OF INFORMATION OR DATA CONTAINED IN STORED ON OR INTEGRATED WITH ANY PRODUCT RETURNED TO BLINK FOR WARRANTY SERVICE RESULTING FROM THE USE OF THE PRODUCT RELATING TO WARRANTY SERVICE OR ARISING OUT OF ANY BREACH OF THIS LIMITED WARRANTY EVEN IF DLINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON CONFORMING PRODUCT THE MAXIMUM LIABILITY OF D LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF THE PRODUCT COVERED BY THE WARRANTY THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES EXPRESS IMPLIED OR STATUTORY Governing Law This Limited Warranty shall be governed by the laws of the State of California Some states do not allow exclusion or limitation of incidental or consequential damages or limitations on how long an implied warranty lasts so the foregoing limitations and may not apply This Limited Warranty provides specific legal rights and you may also have other rights which vary from state to state Trademarks D Link is a registered trademark of D Link Systems Inc Other trademarks or registered trademarks are the property of their respective owners Copyright Statement No part of this publication or documentation accompanying t
13. MIBs are used by the Simple Network Management Protocol SNMP to contain attributes of their managed systems The Switch contains its own internal MIB multicast Single packets copied to a specific subset of network addresses These addresses are specified in the destination address field of the packet protocol A set of rules for communication between devices a network The rules dictate format timing sequencing and error contrd resilient link A pair of ports that can be configured so that one will take over data transmission should the other fail See also main port and standby port RJ 45 Standard 8 wire connectors for IEEE 802 3 IOBASE T networks RMON Remote Monitorin g Subset of SNMP MIB II which allows monitoring and management capabilities by addressing up to ten different groups of information RPS Redundant Power System A device that provides a backup source of power when connected to the Switch server farm A cluster of servers in a centralized location serving a large user population SLIP Serial Line Internet Protocol A protocol that allows IP to run over a serial line connection SNMP Simple Network Management Protocol A protocol originally designed to be used in managing TCP IP internets SNMP is presently implemented on a wide range of computers and networking equipment and may be used to manage many aspects of network and end station operation Spanning Tree Protocol STP A brid
14. ND REGISTRATION INFORMATION eere eee osseo ERROR BOOKMARK NOT DEFINED iji D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Preface The DGS 1008D Manual is divided into sections that describe the system installation and operating instructions with examples Section 1 Introduction A description of the physical features of the Switch which includes LED indicators ports and panel descriptions Section 2 Installation A description of the physical installation of the Switch which includes connecting the Switch to the network and connecting stacked switch groups Section 3 Connecting the Switch A description of how to connect your Switch to an end node hub Switch or backbone server Appendix A Technical Specifications The technical specifications of the DGS 100 8D Glossary Lists definitions for terms and acronyms used in this document Intended Readers The DGS 1008D Manual contains information for setup and management and of the DGS 1008D Switch This manual is intended for network managers familiar with network management concepts and terminology Notes Notices and Cautions NOTE A NOTE indicates important information that helps you make b etter use of your device NOTICE A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem CAUTION A CAUTION indicates the potential for property damage personal injury or dea
15. O queue e Priority 2 is assigned to Switch s QO queue e Priority 3 is assigned to the Switch s Q1 queue e Priority 4 is assigned to the Switch s Q2 queue e Priority 5 is assigned to the Switch s Q2 queue e Priority 6 is assigned to the Switch s queue e Priority 7 is assigned to the Switch s Q3 queue The Switch uses strict priority for Scheduling Strict priority based scheduling any packets residing in the higher priority queues are trans mitted first Switching Technology Another key development pushing the limits of Ethernet technology is in the field of switching technology A switch bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or fast Ethernet LAN segments Switching is a cost effective way of increasing the total network capacity available to users on a local area network A switch increases capacity and decreases network loading by making it possible for a local area network to be divided into different segments that do not compete with each other for network transmission capacity decreasing the load on each segment The switch acts as a high speed selective bridge between the individual segments Traffic that needs to go from one segment to another from one port to another is automatically forwarded by the switch without interfering with any other segments ports This allows the total network capacity to be multiplied while still maintaining the sam
16. Regus Offices Beybi Giz Plaza Ayazaga Mah Meydan Sok No 28 Maslak 34396 Istanbul Turkiye TEL 90 212 335 2553 FAX 90 212 335 2500 URL www dlink com tr D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Egypt 19 E Shahed Helmy El Masri AL Heliopolis Cairo Egypt TEL 202 414 4295 FAX 4202 415 6704 URL www dlinkme com Israel 11 Hamanofim Street Ackerstein Towers Regus Business Center P O Box 2148 Hertzelia Pituach 46120 Israel TEL 4972 9 9715700 FAX 972 9 9715601 URL www dlink co il Latin America Isidora Goyeechea 2934 of 702 Las Condes Santiago Chile S A TEL 56 2 232 3185 FAX 56 2 232 0923 URL www dlink cl Brasil Av das Nacoes Unidas 11857 14 andar cj 141 142 Brooklin Novo Sao Paulo SP Brazil CEP 04578 000 TEL 455 11 55039320 FAX 55 11 55039322 URL www dlinkbrasil com br South Africa Einstein Park II Block B 102 106 Witch Hazel Avenue Highveld Technopark Centurion Gauteng Republic of South Africa TEL 27 12 665 2165 FAX 27 12 665 2186 URL www d link co za Russia Grafsky per 14 floor 6 Moscow 129626 Russia TEL 7 095 744 0099 FAX 7 095 744 0099 350 URL www dlink ru China No 202 C1 Building Huitong Office Park No 71 Jianguo Road Chaoyang District Beijing 100025 China TEL 86 10 58635800 FAX 86 10 58635799 URL www dlink com cn Taiwan No 289 Sinhu 3 Rd Neihu District Taipei City 114 Taiw
17. an TEL 886 2 6600 0123 FAX 886 2 6600 1188 URL www dlinktw com tw D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Registration Card All Countries and Regions excluding USA Print type or use block letters Your name Mr Ms Organization Dept Your title at organization Telephone Fax Organization s full address Country Date of purchase Month Day Year Product Product Serial No Product installed in type of Product installed in computer Moon computer e g Compaq 486 serial No Applies to adapters only Product was purchased from Reseller s name Telephone Fax Reseller s full address Answers to the following questions help us to support your product 1 Where and how will the product primarily be used LITra vel OCompany Business Business Personal Use 2 How many employees work at installation site 01 employee 02 9 010 49 L150 99 0100 499 500 999 L11000 or more 3 What network your organization use OXNS IPX O TCP IP O DECnet O Others 4 What network operating system s does your organization use OD Link LANsmart ONovell NetWare ONetWare Lite OSCO Unix Xenix NFS OBanyan Vines ODECnet Pathwork OWindows NT O Windows 2000 OWindows XP OOthers 5 What network management program does your organization use LID View OHP OpenView Windows OHP OpenView Unix OSunNet
18. cause harmful interference in which case the user will be required to correct the interference at his own expense CE Mark Warning This is a Class B product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Warnung Dies ist ein Produkt der Klasse Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen I n diesem Fall kann vom Benutzer verlangt werden angemessene M assnahmen zu ergreifen Precauci n Este es un producto de Clase B En un entorno dom stico puede causar interferencias de radio en cuyo case puede requerirse al usuario para que adopte las medidas adecuadas Attention est un produit de classe B Dans un environnement domestique ce produt pourrait causer des interf rences radio auquel cas l utilisateur devrait prendre les mesures ad quates Attenzione Il presente prodotto appartiene alla classe B Se utilizzato in ambiente domestico il prodotto pu causare interferenze radio nel cui caso possibile che l utente debba assumere provvedimenti adeguati VCCI Warning ONiBIE 7224BBfBi i amp wWEBHC OXIEezBEIb CRA j 6c uwEAze5 El lcAUx 1948 8000 FARE ok RRENDA BSMI Warning Ex dE WE CRNA Ad TEER RE eS ARE Be BET MEHRA ER PR ES SIS D Link DGS 1008D Unmanaged Gigabit Ethernet Switch CONTENTS TO
19. des Colonies 11 B 1000 Brussels Belgium Tel 32 0 2 517 7111 FAX 32 0 2 517 6500 URL www dlink benelux com Italy Via Nino Bonnet n 6 b 20154 Milano Italy TEL 39 02 2900 0676 FAX 39 02 2900 1723 URL www dlink it Sweden P O Box 15036 S 167 15 Bromma Sweden TEL 46 0 8564 61900 FAX 46 0 8564 61901 URL www dlink se Denmark Naverland 2 DK 2600 Glostrup Copenhagen TEL 45 43 969040 FAX 45 43 424347 URL www dlink dk Norway Karihaugveien 89 1086 Oslo Norway TEL 47 23 897189 FAX 47 22 309085 URL www dlink no Finland Pakkalankuja 7A 01510 Vantaa Finland TEL 358 9 2707 5080 FAX 358 9 2707 5081 URL www dlink fi Iberia C Sabino De Arana 56 Bajos 08028 Barcelona TEL 34 93 4090770 FAX 34 93 4910795 URL www dlinkiberia es Singapore 1 International Business Park 03 12 The Synergy Singapore 609917 TEL 65 6774 6233 FAX 65 6774 6322 URL www dlink intl com Australia 1 Giffnock Avenue North Ryde NSW 2113 Australia TEL 61 2 8899 1800 FAX 61 2 8899 1868 URL www dlink com au India D Link House Kurla Bandra Complex Road Off CST Road Santacruz East Mumbai 400098 India TEL 91 022 26526696 56902210 FAX 91 022 26528914 URL www dlink co in Middle East Dubai P O Box 500376 Office No 103 Building 3 Dubai Internet City Dubai United Arab Emirates 971 4 3916480 971 4 3908881 URL www dlink me com Turkey
20. e AC to DC power converter into the power connector of the Switch and the other end into the local power source outlet After the Switch is powered on the LED indicators will momentarily blink This blinking of the LED indicators represents a reset of the system Power Failure As a precaution in the event of a power failure unplug the Switch When power is resumed plug the Switch back in D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Connecting The Switch Switch To End Node Switch To Hub or Switch Connecting To a Server NOTE All 8 high performance NWay Ethernet ports can support both MDFII and MDI X connections Switch To End Node End nodes include PCs outfitted with a 10 100 or 1000 Mbps R 45 Ethernet Fast Ethernet Network Interface Card NIC and most routers An end node can be connected to the Switch via a twisted pair Category 3 4 5 or 5e UTP STP cable The end node can be connected to any of the ports of the Switch RJ 45 Connector Figure 3 1 Switch connected to an end node The Link Act LEDs for each UTP port light green when the link is valid The LED over the port label indicates a port speed of either 10 100 Mbps or 1000Mbps A blinking LED on the bottom indicates packet activity on that port Switch to Hub or Switch These connections can be accomplished in a number of ways using a standard Ethernet cable 10BASE T hub or switch can be connected to the Switch via a twisted pair Category
21. e network cabling and adapter cards For Fast Ethernet or Gigabit Ethernet networks a Switch is an effective way of eliminating problems of chaining hubs beyond the two repeater limit A Switch can be used to split parts of the network into different collision domains for example making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 100BASE TX networks Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps networks and new 100Mbps networks Switching LAN technology is a marked improvement over the previous generation of network bridges which were characterized by higher latencies Routers have also been used to segment local area networks but the cost of a router and the setup and maintenance required make routers relatively impractical Today s Switches are an ideal solution to most kinds of local area network congestion problems D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Switch Description The DGS1008D Switch is equipped with five ports providing dedicat ed 10 100 or 1000 Mbps bandwidth These ports can be used for connecting PCs printers servers routers Switches hubs and other network devices The five multi speed ports use standard twisted pair cabling and are ideal for segmenting networks into small connected subnets Each port can support up to 2000 Mbps of throughput in full duplex mode Th
22. egotiation A feature on a port which allows it to advertise its capabilities for speed duplex and flow control When connected to an end station that also supports auto negotiation the link can self detect it s optimum operating setup backbone port A port that does not learn device addresses and that receives all frames with an unknown address Backbone ports are normally used to connect the Switch to the backbone of your network Note that backbone ports were formerly known as designated downlink ports backbone The part of a network used as the primary path for transporting traffic between network segments Bandwidth Information capacity measured in bits per second which a channel can transmit The bandwidth of Ethernet is 1OMbps the bandwidth of Fast Ethernet is 100Mbps baud rate The switching speed of a line Also known as line speed BOOTP The BOOTP protocol allows you to aitomatically map an IP address to a given MAC address each time a device is started In addition the protocol can assign the subnet mask and default gateway to a device bridge A device that interconnects local or remote networks no matter what higher level protocols are involved Bridges form a single logical network centralizing network administration broadcast message sent to all destination devices on the network broadcast storm Multiple simultaneous broadcasts that typically absorb available network bandwidth and can cause networ
23. eight of the rack rests on the floor Install front and side stabilizers on a single rack or front stabilizers for joined multiple racks before working on the rack Always load the rack from the bottom up and load the heaviest item in the rack first Make sure that the rack is level and stable before extending a component from the rack Use caution when pressing component rail release latches and sliding a component into or out of a rack slide rails can pinch your fingers After a component is inserted into rack carefully extend rail into a locking position and then slide component into the rack Do not overload AC supply branch circuit that provides power to rack The total rack load should not exceed 80 percent of the branch circuit rating Ensure that proper airflow is provided to components in the rack Do not step on stand on any component when servicing other components in a rack 2 NOTE A qualified electrician must perform all connections to DC power and to safety grounds All electrical wiring must comply with applicable local or national codes and practices CAUTION Never defeat the ground conductor or operate the equipment in the absence of a suitably installed g round conductor Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available CAUTION The system chassis must be positively grounded
24. ent wall 2 Drive the T3 x 15L screws into the nylon screw anchors 3 Hook the mounting holes at the back of the switch onto the screws The walkmount process is complete B Wooden wall 1 Insert the T3 x 15 L screws into the wood wall 2 Hook mounting holes at the back of the switch onto the screws The wall mount process is complete z Key holes sze 15 X amp U x 3 2 1 3 4 inch minimu m for a wooden wall 2 22 2 minimum for a cement wall Ta x 7 5I Ae anchors 4 7 x bl P Screw Wood Wall Cement Wall Figure 2 1 Mounting the Switch to a Wall Attaching the Rubber Feet Use the rubber feet provided Position and apply the rubber feet to the underside of the DGS 1008D Switch Figure 2 2 Attaching the Rubber Feet CAUTION Do not place any device top of Switch or place the Switch on top of any device or object that will block the free flow of air through the ventilation slots on the sides top and bottom of the Switch s case In addition care should be taken not to locate the Switch next to on top of or underneath any device that generates a significant amount of heat For the Switch to perform at its optimal level the Switch must have adequate ventilation to prevent the Switch from overheating and becoming damaged D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Power On Plug one end of th
25. ge based system for providing fault tolerance on networks STP works by allowing you to implement parallel paths for network traffic and to ensure that redundant paths are disabled when the main paths are operational and enabled if the main paths fail stack A group of network devices that are integrated to form a single logical device standby port The port in a resilient link that will take over data transmission if the main port in the link fails switch A device that filters forwards and floods packets based the packet s destination address The Switch learns the addresses associated with each switch port and builds tables based on this information to be used for the switching decision TCP IP A layered set of communications protocols providing Telnet terminal emulation FTP file transfer and other services for communication among a wide range of computer equipment Telnet A TCP IP application protocol that provides virtual terminal service letting a user log in to another computer system and access a host as if the user were connected directly to the host TFTP Trivial File Transfer Protocol Allows you to transfer files such as software upgrades from a remote device using your switch s local management capabilities UDP User Datagram Protocol An Internet standard protocol that allows an application program on one device to send a datagram to an application program on another device VLAN Virtual LAN
26. gets wet see the appropriate section in your troubleshooting guide or contact your trained service provider Do not push any objects into the openings of your system Doing so can cause a fire or an electric shock by shorting out interior components Use the product only with approved equipment e Allow the product to cool before removing covers or touching internal components Operate the product only from the type of external power source indicated on the electrical ratings label If you are not sure of the type of power source required consult your service provider or local power company To help avoid damaging your system be sure the voltage selection switch if provided on the power supply is set to match the power available at your location 115 volts V 60 hertz Hz in most of North and South America and some Far Eastern countries such as South Korea and Taiwan 100 V 50 Hz in eastern Japan and 100 V 60 Hz in western Japan 230 V 50 Hz in most of Europe the Middle East and the Far East e Also be sure that attached devices are electrically rated to operate with the power available in your location Use only approved power cable s If you have not been provided with a power cable for your system or for any C powered option intended for your system purchase a power cable that is approved for use in your country The power cable must be rated for the product and for the voltage and current marked on t
27. ghput of a link half duplex A system that allows packets to be transmitted and received but not at the same time Contrast with full duplex IP address Internet Protocol address A unique identifier for a device attached to a network using TCP IP The address is written as four octets separated with full stops periods and is made up of a network section an optional subnet section and a host section IPX Internetwork Packet Exchange A protocol allowing communication in a NetWare network LAN Local Area Network A network of connected computing resources such as PCs printers servers covering a relatively small geographic area usually not larger than a floor or building Characterized by high data rates and low error rates 13 14 D Link DGS 1008D Unmanaged Gigabit Ethernet Switch latency The delay between the time a device receives a packet and the time the packet is forwarded out of the destination port line speed See baud rate main port The port in a resilient link that carries data traffic in normal operating conditions MDI Medium Dependent Interface An Ethernet port con nection where the transmitter of one device is connected to the receiver of another device MDI X Medium Dependent Interface Cross over An Ethernet port connection where the internal transmit and receive lines are crossed MIB Management Information Base Stores a device s management characteristics and parameters
28. he product s electrical ratings label The voltage and current rating of the cable should be greater than the ratings marked on the product help prevent an electric shock plug the system and peripheral power cables into properly grounded dectrical outlets These cables are equipped with three prong plugs to help ensure proper grounding Do not use adapter plugs or remove the grounding prong from a cable If you must use an extension cable use a 3 wire cable with properly grounded plugs Observe extension cable and power strip ratings Make sure that the total ampere rating of all products plugged into the extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or power strip help protect your system from sudden transient increases and decreases in electrical power use a surge suppressor line conditioner or uninterruptible power supply UPS Position system cables and power cables carefully route cables so that they cannot be stepped on or tripped over Be sure that nothing rests on any cables Do not modify power cables or plugs Consult a licensed electrician or your power company for site modifications Always follow your local national wiring rules D Link DGS 1008D Unmanaged Gigabit Ethernet Switch e When connecting or disconnecting power to hot pluggable power supplies if offered with your system observe the following guidelines Install the
29. his product may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from D Link Corporation D Link Systems Inc as stipulated by the United States Copyright Act of 1976 and any amendments thereto Contents are subject to change without prior notice Copyright 2004 by D Link Corporation D Link Systems Inc All rights reserved CE Mark Warning This is a Class B product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures FCC Statement This equipment has been tested and found to comply with the limits for a Class B 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 communication 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 e Increase the separation
30. in the applicable documentation from the date of original retail purchase of the Software for a period of ninety 90 days Software Warranty Period provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation DLink further warrants that during the Software Warranty Period the magnetic media on which D Link delivers the Software will be free of physical defecis The customer s sole and remedy and the entire liability of D Link and its suppliers under this Limited Warranty will be at D Link s option to replace the non conforming Software defective media with software that substantially conforms to DLink s functional specifications for the Software or to refund the portion of the actual purchase price paid that is attributable to the Software Except as otherwise agreed by DLink in writing the replacement Software is provided nly to the original licensee and is subject to the terms and conditions of the license granted by DLink for the Software Replacement Software will be warranted for the remainder of the original Warranty Period and is subject to the Same limitations and exclusions If a material non conformance is incapable of correction or if D Link determines in its sole discretion that it is not practical to replace the non conforming Software the price paid by the original licensee for the non conforming Software will be refunded by D Link provided that the no
31. is stand alone Switch enables the network to use some of the most demanding multimedia and imaging applications concurrently with other user applications without creating bottlenecks Features The 065 1008 8 Port 10 100 1000BASE T Gigabit Ethernet Switch was designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously Eight 10 100 1000BASE T Gigabit Ethernet ports Cable Diagnostic function at Switch boot up Supports Auto Negotiation for 10 100 1000Mbps and duplex mode Supports Auto MDI MDIX for each port Supports Full Half duplex transfer mode for 10 and 100Mbps Supports Full duplex transfer mode for 1000Mbps Full wire speed reception and transmission Store and Forward switching method Supports 8K absolute MAC addresses Supports 144KBytes RAM for data buffering Extensive front panel diagnostic LEDs IEEE 802 3x flow control for full duplex IEEE 802 1p priority queues Back pressure flow control for half duplex Jumbo Frame Support 9 6KBytes Front Panel Components The front panel of the Switch consists of LED indicators 8 10 100 1000 Mbps Et hernet ports Dal 7 ipabi m DGS 1008D Figure 1 1 Front Panel View of the Switch Comprehensive LED indicators display the status of the Switch and the network D Link DGS 1008D Unmanaged Gigabit Ethernet Switch LED Indicators The LED indicators of the Swi
32. k failure console port The port on the Switch accepting a terminal or modem connector It changes the parallel arrangement of data within computers to the serial form used on data transmission links This port is most often used for dedicated local management CSMA CD Channel access method used by Ethernet and IEEE 802 3 standards in which devices transmit only after finding the data channel clear for some period of time When two devices transmit simultaneously a collision occurs and the colliding devices delay their retransmissions for a random amount of time data center switching The point of aggregation within a corporate network where a switch provides high performance access to server farms a high speed backbone connection and a control point for network management and security Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet networks operate at 1OMbps using CSMA CD to run over cabling Fast Ethernet 100Mbps technology based on the Ethernet CD network access method Flow Control IEEE 802 3z A means of holding packets back at the transmit port of the connected end station Prevents packet loss at a congested switch port forwarding The process of sending a packet toward its destination by an internetworking device full duplex A system that allows packets to be transmitted and received at the same time and in effect doubles the potential throu
33. n conforming Software and all copies thereof is first returned to DLink The license granted regecting any Software for which a refund is given automatically terminates Non Applicability of Warranty The Limited Warranty provided hereunder for Hardware and Software portions of D Link s products will not be applied to and does not cover any refurbished product and any product purchased through the inventory clearance or liquidation sale or other sales in which D Link the sellers or the liquidators expressly disclaim their warranty obligation pertaining to the product and in that case the product is being sold Asls without any warranty whatsoever including without limitation the Limited Warranty as described herein notwithstanding anything stated herein to the contrary Submitting A Claim The customer shall return the product to the original purchase point based on its return policy In case the return policy period has expired and the product is within warranty the customer shall submit a claim to D Link as outlined below The customer must submit with the product as of the claim a written description of the Hardware defect or Software nonconformance in sufficient detail to allow DLink to confirm the same along with proof of purchase of the product 6uch as a copy of the dated purchase invoice for the product if the product is not registered The customer must obtain a Case ID Number from DLink Technical Support at 1 877 453 5465
34. ostic during the normal operation of the Switch only when the Switch is booted up or power cycled NOTE The Cable Diagnostic function does not support 10M 100M If the port is connected toa 10M 100M device see the Link LED to check if the cable is good or not D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Rear Panel Description DC Power Jack Power is supplied through an external AC power adapter Check the technical specification section for information about the AC power input voltage T 7 m EN A 1 E DC xl Jack Figure 1 3 Rear panel view of the Switch 10 100 1000BASE T Ports Eight 8 Gigabit Ethernet Auto Negotiating ports 10 100 1000Mbps Comprehensive LED indicators display the conditions of the Switch and status of the network D Link DGS 1008D Unmanaged Gigabit Ethernet Switch SECTION 2 Installation Package Contents Before You Connect to the Network Installing the Switch Power On Package Contents Open the shipping carton of the Switch and carefully unpack its contents The carton should contain the following items One DGS 1008D 8 Port 10 100 1000BASE T Gigabit Ethernet Switch e Four rubber feet with adhesive backing e One external power adapter Wall mounting kit e This manual If any item is missing or damaged please contact your local D Link reseller for replacement Before You Connect to the Network The site where you install the Swi
35. ption Features Ports Front Panel Components Ethernet Technology Fast Ethernet Technology The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks number of high speed LAN technologies are proposed to provide greater bandwidth and improve client server response times Among them Fast Ethernet or 100BASE T provides a non disruptive smooth evolution from 1OBASE T technology 100Mbps Fast Ethernet is a standard specified by the IEEE 802 3 LAN committee It is an extension of the 10Mbps Ethernet standard with the ability to transmit and receive data at 100Mbps while maintaining the Carrier Sense Multiple Access with Collision Detection CSMA CD Ethernet protocol Gigabit Ethernet Technology Gigabit Ethernet is an extension of IEEE 802 3 Ethernet utilizing the same packet structure format and support for CSMA CD protocol full duplex flow control and management objects but with a tenfold increase in theoretical throughput over 100Mbps Fast Ethernet and a one hundred fold increase over 10Mbps Ethernet Since it is compatible with all 10Mbps and 100Mbps Ethernet environments Gigabit Ethernet provides a straightforward upgrade without wasting a company s existing investment in hardware software and trained personnel The increased speed and extra bandwidth offered by Gigabit Ether net are essential to coping with the network bottlenecks that f
36. requently develop as computers and their busses get faster and more users use applications that generate more traffic Upgrading key components such as your backbone and servers to Gigabit Ethernet can greatly improve network response times as well as significantly speed up the traffic between your subnetworks Gigabit Ethernet enables fast optical fiber connections to support video conferencing complex imaging and similar data intensive app lications Likewise since data transfers occur 10 times faster than Fast Ethernet servers outfitted with Gigabit Ethernet NIC s are able to perform 10 times the number of operations in the same amount of time In addition the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost effective method to take advantage of today and tomorrow s rapidly improving switching and routing internetworking technologies 802 1P and QoS The DGS 1008D Switch supports 802 1p priority queuing Quality of Service The implementation of QoS Quality of Service and benefits of using 802 1p priority queuing are described here Advantages of QoS QoS is an implementation of the IEEE 802 1p standard that allows network administrators a method of reserving bandwidth for important functions that require a large bandwidth or have a high priority such as VoIP voice over Internet Protocol web browsing applications file server applications or video conferencing Not only can a larger bandwidth be created but other less
37. rs under this Limited Warranty will be at D Link s option to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund the actual purchase price paid Any repair or replacement will be rendered by DLink at an Authorized DLink Service Office The replacement ardware need not be new or have an identical make model or part D Link may at its option replace the defective Hardware or any part thereof with any reconditioned product that D Link reasonably determines is substantially equivalent or superior in all material respects to the defective Hardware replacement hardware will be warranted for the remainder of the original Warranty Period or nine 90 days whichever is longer and is subject to the same limitations and exclusions If a material defect is incapable of correction or if Link determines that it is not practical to repair or replace the defective Hardware the actual price paid by the original purchaser for the defective Hardware will be refunded by DLink upon return to DLink of the defective Hardware All Hardware or part thereof that is replaced by D Link or for which the purchase price is refunded shall become the property of D Link upon replacement or refund Limited Software Warranty D Link warrants that the software portion of the product Software will substantially conform to D Link s then current functional specifications for the Software as set forth
38. sted below or equivalent AM 0751000D41 for USA DC Inputs AM 0751000841 for Australia AM 0751000B for UK AM 0751000M for China AM 0751000V for Europe Power Operating m 2 Storage 7 RR 142 mm x 115 mm x 31mm few Foo Css 8 OassB 11 11 12 D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Performance Transmission Method Store and forward RAM Buffer 144KBytes per device ee AGANT 8K MAC address per device Packet Filtering Forwarding Rate Full wire speed MAC Address i Learning elearning auto aging 12 13 D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Glossary 1000BASELX A short laser wavelength on multimode fiber optic cable for a maximum length of 550 meters 1000BASESX A long wavelength for a long haul fiber optic cable for a maximum length of 10 kilometers 100BASEFX 100Mbps Ethernet implementation over fiber 100BASETX 100Mbps Ethernet implementation over Category 5 and Type 1 Twisted cabling 10BASE T The IEEE 802 3 specification for Ethernet over Unshielded Twisted Pair UTP cabling e The automatic removal of dynamic entries from the Switch Database which have timed out and are no longer valid ATM Asynchronous Transfer Mode A connection oriented transmission protocol based on fixed length cells packets ATM is designed to carry a complete range of user traffic including voice data and video signals auto n
39. tch include Power 100 1000Mbps and Link Act The following shows the LED indicators for the Switch along with an explanation of each indicator Figure 1 2 LED Indicators Comprehensive LED indicators display the conditions of the Switch and status of the network A description of these LED indicators follows see LED Indicators The LED indicators of the Switch include Power Link Act 1000Mbps and 100Mbps The Cable Diagnostic functions of the Switch are indicated by a combination of the Speed and the Link Act LEDs as described below Power Indicator This green indicator illuminates when the Switch is receiving power Link Act This green indicator illuminates steadily when a port is connected to a station successfully and has a good link The indicator will blink to indicate that a port is transmitting or receiving data on the network Speed 1000Mbps Green 100Mbps Amber 10Mbps Off This indicator is amber colored when the port is connected to a 100Mbps Fast Ethernet station It is green when the port is connected to a 1000Mbps Ethernet station It is not illuminated when the port is connected to a 10Mbps Ethernet station Cable Diagnostic LED Indications When the Switch is booted up when the Switch is first powered on the Cable Diagnostic function is initialized and run The Cable Diagnostic function will detect three common faults in an Ethernet cable connecting the Switch to a remote network device an open circ
40. tch may greatly affect its paformance Please follow these guidelines for setting up the Switch e Install the Switch on a sturdy level surface that can support at least 3 kg 6 6 16 of weight Do not place heavy objects on the Switch The power outlet should be within 1 82 meters 6 feet of the Switch e Visually inspect the power cord and see that it is fully secured to the AC power port Make sure that there is adequate space for proper heat dissipation from and adequate ventilation around Switch Leave at least 10 cm 4 inches of space at the front and rear of the Switch for ventilation e Install the Switch in a fairly cool and dry place for the acceptable temperature and humidity operating ranges e Install the Switch in a site free from strong electromagnetic field generators such as motors vibration dust and direct exp osure to sunlight When installing the Switch on a level surface attach the rubber feet to the bottom of the device The rubber feet cushion the Switch protect the casing from scratches and prevent it from scratching other surfaces D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Mounting the Switch on a Wall The 065 1008 can be mounted on a wall Two mounting slots are provided on the bottom of the Switch for this purpose Make sure that the front panel is exposed in order to view the LEDs Refer to the illustration below A Cement wall 1 Mount nylon screw anchors into a cem
41. th iv D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Safety Instructions Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage Throughout this safety section the caution icon is used to indicate cautions and precautions that you need to review and follow Safety Cautions To reduce the risk of bodily injury electrical shock fire and damage to the equipment observe the following precautions Observe and follow service markings Do not service any product except as explained n your system documentation Opening or removing covers that are marked with the triangular symbol and lightning bolt may expose you to an electrical shock Only a trained service technician should service components inside these compartments If any of the following conditions occur unplug the product from the electrical outlet and replace the part or contact your trained service provider The power cable extension cable or plug is damaged An object has fallen into the product The product has been exposed to water The product has been dropped or damaged The product does not operate correctly when you follow the operating instructions Keep your system away from radiators and heat sources Also do not block cooling vents Do not spill food or liquids on your system components and never operate the product in a wet environment If the system
42. to the rack cabinet frame Do not attempt to connect power to the system until grounding cables are connected Completed power and safety ground wiring must be inspected by a qualified electrical inspector An energy hazard will exist if the safety ground cable is omitted or disconnected D Link DGS 1008D Unmanaged Gigabit Ethernet Switch Protecting Against Electrostatic Discharge Static electricity can harm delicate components inside your system To prevent static damage discharge static electricity from your body before you touch any of the electronic components such as the microprocessor You an do so by periodically touching an unpainted metal surface on the chassis You can also take the following steps to prevent damage from electrostatic discharge ESD 1 When unpacking a static sensitive component from its shipping carton do not remove the component from antistatic packing material until you are ready to install the component in your system Just before unwrapping the antistatic packaging be sure to discharge static electricity from your body 2 When transporting a sensitive component first place it in an antistatic container or packaging Handle all sensitive components in a static safe area If possible use antistatic floor pads workbench pads and an antistatic grounding strap vii D Link DGS 1008D Unmanaged Gigabit Ethernet Switch SECTION 1 Introduction Ethernet Technology 802 1P and QOS Switch Descri
43. uit a lack of continuity between the pins at each end of the Ethernet cable or a disconnected cable a short circuit two or more conductors short circuited and improper termination a termination resistance greater than the specified 100 ohms Any of these common cable faults will be detected by the Cable Diagnostic function and the LEDs will display the results of the Cable Diagnostic function as follows Open Short or Improper Termination Speed LED Amber Link Act LED Off Cable connection good Speed LED Green Link Act LED Off The Cable Diagnostic function operates only during the Switch boot up when the Switch is first powered on The Cable Diagnostic first scans the five Ethernet ports to determine if the Ethernet cable is in good working order This process is indicated by the Speed LED blinking green for each of the five ports sequentially The initial port scan takes about 10 seconds If a cable fault is detected it is indicated by the corresponding port s Speed LED glowing amber for 5 seconds after the initial port scan The Switch is then reset for normal operation It takes about 2 seconds for the Switch to reset The entire Cable Diagnostic process takes about 17 seconds from the time the Switch is booted Therefore from the time power is first applied to the Switch about 17 seconds is required before the Switch will begin normal operation Note There is no display of cable faults detected by the Cable Diagn

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