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Manual LevelOne GSW-2476

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  • LevelOne GSW-2476 - page 1

    LevelOne GSW-2476 24-Port Gigabit w/ 4-Port SFP Web Smart Switch User Manual V ersion 1.0-06 08 ...

  • LevelOne GSW-2476 - page 2

    ...

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    iii C OMPLIANCES FCC - Class A 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 l imits are designed to provide reasonab le protection against har mful interf erence when the equipment is operat ed in a commercial environment. This equipment gene rates, use ...

  • LevelOne GSW-2476 - page 4

    C OMPLIANCES iv CE Mark Declaration of Conf or mance for EMI and Safety (EEC) This infor mation technolog y equipment compli es with the requirements of the Council Directi ve 89/3 36/EEC on the Approximatio n of the laws of the Member States relating to Electromagnetic Com patibility and 73/23/EE C fo r electrical equipment us ed within certain vo ...

  • LevelOne GSW-2476 - page 5

    C OMPLIANCES v Safety Compliance W ar ning: Fiber Optic Port Safety Av er tissment: Ports pour fi bres optiques - sécurité sur le plan optique W ar nhinweis: F aser optikanschlüsse - Optische Sicherheit Powe r C o r d S a f e t y Please read the follow ing safety informati on carefully before inst alling t his switch: Wa r n i n g : Installation ...

  • LevelOne GSW-2476 - page 6

    C OMPLIANCES vi Import ant! Before making connections , make sure yo u hav e the correct cord set. Check it (read the label on the cable) against the following: Power Cord Set U.S.A. and Canada The cord set must be UL-approved and CSA certified. The minimum specifications for the flexible cord are: - No. 18 AWG - not longer than 2 meters, or 16 AWG ...

  • LevelOne GSW-2476 - page 7

    C OMPLIANCES vii W ar nings and Cautionar y Messa ges Environmental Statement The manufacturer of this prod uct endea vours to sustain an environme ntally- friendly policy throughout the entire producti on process . T his is achieved t hough the foll owing me ans: • Adherence to nationa l legislation and regu lations on environmenta l production ...

  • LevelOne GSW-2476 - page 8

    C OMPLIANCES viii This gui de details the hardware features of th is switch, includin g Its physical and perfor mance-related characteristics , and how to install the switc h. Audience This guide is for system admini strators with a w orking knowledge of network management. Y ou should be familiar with switch ing and networking concepts . Related P ...

  • LevelOne GSW-2476 - page 9

    ix T ABLE OF C ONTENTS 1 About GSW-2476 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Switch Architect ure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Network Manage ment Options . . . . . . ...

  • LevelOne GSW-2476 - page 10

    T ABLE OF C ONTENTS x 4 Making Network Connections . . . . . . . . . . . . . . . . . . . 4-1 Connecting N etwork Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Twisted-Pair Dev ices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Cabling Guidelines . . . . . . . . . . . . . . . . . ...

  • LevelOne GSW-2476 - page 11

    T ABLE OF C ONTENTS xi VLAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5- 28 QOS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 3 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 4 IGMP Snoop . . . . . . . . . . ...

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    T ABLE OF C ONTENTS xii ...

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    xiii T ABLES Table 1-1 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 1-2 Power Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 4-1 Maximum 1000BASE-T Gigabit Et hernet Cable Length . . . . 4-6 Table 4-2 Maximum 1000BASE-SX Fiber Op tic Cable Length . . . . . ...

  • LevelOne GSW-2476 - page 14

    xiv F IGURES Figure 1-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Figure 1-2 R ear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Figure 1-3 Por t LEDs and Power LED . . . . . . . . . . . . . . . . . . . . . . . 1-4 Figure 1-4 Power Supply Socket . . . . . . . . . . ...

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    F IGUR ES xv Figure 5- 19 Trunk M embership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 7 Figure 5-2 0 Trunk C onfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 8 Figure 5-2 1 VLA N Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 1 Figure 5-2 2 802.1Q VLAN Configuration . . . . . ...

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    F IGURES xvi ...

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    1-1 C HAPTER 1 A BOUT GSW-2476 Overview LevelOne GSW -2476 is an intelligen t Layer 2 switch with 24 10/100/ 1000B ASE-T ports, four of which are co mbination ports * that are shared with four SFP transceiv er slots (see Figure 1-1, Ports 21-24). Figure 1-1 Front Panel Figure 1-2 Rear Panel * If an SFP transc eiv er is plugged in, the corres pondin ...

  • LevelOne GSW-2476 - page 18

    A BOUT GSW-2476 1-2 Switch Architecture The switch employs a wire-speed, non-blocking switching fabric . This per mits simultaneous wire-speed transport of multiple pack ets at low latency on all por ts . The switch also features full-dupl ex capability on all ports, which effecti vely doubles the bandwidth of eac h connection. The switch uses stor ...

  • LevelOne GSW-2476 - page 19

    D ESCRIPTION OF H ARDWARE 1-3 Description of Hardware 10/100/1000BASE-T Ports The switch contains 24 RJ-45 ports th at operate at 10 Mbps or 100 Mbps, half or full dupl ex, or at 1000 Mbps , full du plex. Because all ports on the switch support automa tic MDI/MDI-X operation, y ou can use straight-through cables for all network connections to PCs o ...

  • LevelOne GSW-2476 - page 20

    A BOUT GSW-2476 1-4 Figure 1-3 Port LEDs and Power LED Table 1-1 Port Status LEDs LED Condition Status Fast Ethernet Ports (Ports 1-24) Link/Act (Link/Activi ty) On/Flashing Green Port has establishe d a valid network connection. Flashing indicates activity . Off There is no valid link on the port. 1000 Mbps On Green Port is operating at 1000 Mbps. ...

  • LevelOne GSW-2476 - page 21

    F EATURES AND B ENEFITS 1-5 Power Supply Socket The power sock et is located on the rear panel of the switch. The standard pow er socket is for the A C power cord. Figure 1-4 Power Supply Socket Features and Benefits Connectivity • 24 10/100/1000 Mbps ports for easy Gigabit Ethernet integration and for protection of your investme nt in legacy LAN ...

  • LevelOne GSW-2476 - page 22

    A BOUT GSW-2476 1-6 Expandability • 4 Small Form Factor Pluggable (S FP) transceiver slots (shared with 1000BASE-T ports) • Supports 1000BASE-SX, 1000BAS E-LX and 1000BASE-ZX SFP transceiv ers. Performance • Transparent bridging. • Provides store-and-forward switching • Supports Jumbo frames up to 9.6 Kbytes • Supports flow control • ...

  • LevelOne GSW-2476 - page 23

    2-1 C HAPTER 2 N ETWORK P LANNING Introduction to Switching A network switc h allows simultaneous transmission of multiple pack ets via non-crossbar switching . This means th at it can partition a netw ork more efficiently than bridges or route rs . Switches hav e, therefore, been recognized as one of the most im por tant building blocks for today? ...

  • LevelOne GSW-2476 - page 24

    N ETWORK P LANNING 2-2 Application Examples GSW -2476 is not only designed to segm ent your netw ork, but also to provide a wide range of options in setting up netw ork connections. Some typical applications are described below . Collapsed Backbone GSW -2476 is an excellent c hoice for mix ed Ether net, F ast Ethernet, and Gigabit Ethe rnet install ...

  • LevelOne GSW-2476 - page 25

    A PPLICATION E XAMPLE S 2-3 Central Wiring Closet With 24 parallel bridging ports (i.e., 24 distinct collision domains), this switch can col lapse a complex netw ork do wn into a single efficient bridg ed node, increasin g ov erall bandwidth and throughput. In the figure below , the 1000BASE-T RJ-45 ports on the switch are providing 1 Gbps full-dup ...

  • LevelOne GSW-2476 - page 26

    N ETWORK P LANNING 2-4 Remote Connections with Fiber Cable Fiber optic technolog y allows for longer cabling than any other media type. A 1000B ASE-SX (MMF) link can connect to a site up to 550 meters awa y , a 1000BASE-LX (SMF) link up to 10 km, and a 1000B ASE-Z X link up to 70 km. This allows a switch stac k to ser ve as a collapsed backbone , p ...

  • LevelOne GSW-2476 - page 27

    A PPLICATION E XAMPLE S 2-5 Making VLAN Connections The switch supports VLANs that can be used to org anize any group of network nodes into separate broadcast domains . VLANs confine broadcast traffic to the originating group , and can eliminate broadcast stor ms in large networks . T his provid es a more secure and cleaner netw ork environment. VL ...

  • LevelOne GSW-2476 - page 28

    N ETWORK P LANNING 2-6 Application Notes 1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a w ork station, ser ver or another switch). When the switch is connected to a hub , both devices must o perate in half-du plex mode . 2. F or network applications that require routing between dissimilar netw ...

  • LevelOne GSW-2476 - page 29

    3-1 C HAPTER 3 I NSTALLING THE S WITCH Selecting a Site GSW -2476 can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when c hoosing a location. • The site should: - be at the center of all the devices you want to link and near a power outlet. - be able to maintain its temperature with ...

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    I NSTALLING THE S WITCH 3-2 Ethernet Cabling T o ensure proper operation when insta lling the switches into a netw ork, make sure that the cu rrent cables are suitable for 10B ASE-T , 100B ASE-TX or 1000BASE-T operation. Check the following criteria against the cur rent installation of your netw ork: • Cable type: Unshielded twisted pair (UTP) or ...

  • LevelOne GSW-2476 - page 31

    E QUIPMENT C HECK LIST 3-3 Equipment Checklist After unpacking GSW -2476 unit, c heck th e contents to be sure you ha ve receiv ed all the components. Then, be fore beginning the installation, be sure you ha ve all other necessary installation equipment. Package Contents • GSW-2476 • Four adhesive foot pads • Bracket Mounting Kit containing t ...

  • LevelOne GSW-2476 - page 32

    I NSTALLING THE S WITCH 3-4 • Temperature: Si nce the tempera ture within a rack assembly may be higher than the ambient room temper ature, check that the rack-environment temperature is within the specified operating temperature r ange (see page C-2). • Mechanical Loading: Do not pl ace any equipment on top of a rack-mounted unit. • Circuit ...

  • LevelOne GSW-2476 - page 33

    M OUNTING 3-5 T o rack-mount devices: 1. Attach the brack ets to the device using the screws pro vided in the Brack et Mounting Kit. Figure 3-2 Attaching the Brackets 2. Mount the device in the ra ck, using fo ur rack-mounting screws ( not provided). Figure 3-3 Installing the Switch in a Rack 21 22 23 24 Shared SFP Port 10 11 12 22 23 24 21 22 23 2 ...

  • LevelOne GSW-2476 - page 34

    I NSTALLING THE S WITCH 3-6 3. If installing a single switch onl y , tur n to “Connecting to a P ower Source” at the end of this c hapter . 4. If installing multiple switches , mount them in the rack, one below the other , in any order . Desktop or Shelf Mounting 1. Attach the fou r adhesiv e feet to the bottom of the first switch. Figure 3-4 A ...

  • LevelOne GSW-2476 - page 35

    I NSTALLING AN SFP T RANSCEIVER 3-7 Installing an SFP Transceiver Figure 3-5 Inserting an SFP Transceiver into a Slot The switch supports the follo wing optional transceiv ers: • 1000BASE-SX ( GVT-0300) • 1000BASE-LX ( GVT-0301 ) • 1000BASE-ZX ( GVT-0302) T o install an SFP transceiver , do the following: 1. Consider netw ork and ca bling re ...

  • LevelOne GSW-2476 - page 36

    I NSTALLING THE S WITCH 3-8 Connecting to a Power Source T o connect a device to a powe r source: 1. Insert the power cab le plug directly into the sock et located at the back of the device. Figure 3-6 Power Socket 2. Plug the other end of the cable into a grounded, 3-pin, A C power source. Note: For internati onal use, you m ay need to change the ...

  • LevelOne GSW-2476 - page 37

    4-1 C HAPTER 4 M AKING N ETWORK C ONNECTIONS Connecting Network Devices GSW -2476 is designed to interconnect multiple segments (or collision domains). It can be connected to netw ork cards in PCs and ser vers , as well as to hubs , switches or routers . It may also be connected to devices using optional SFP transceiv ers. Twisted-Pair Devices Each ...

  • LevelOne GSW-2476 - page 38

    M AKING N ETWORK C ONNECTIONS 4-2 Connecting to PCs, Servers, Hubs and Switches 1. Attach one end of a twisted-pair cable segment to the device’ s RJ-45 connector . Figure 4-1 Making Twisted-Pair Connections 2. If the device is a PC card and the sw itc h is in the wiring closet, attach the other end of the cable segment to a modular wall outlet t ...

  • LevelOne GSW-2476 - page 39

    T WISTED -P AIR D EVIC ES 4-3 Network Wiring Connections T oday , the punch-down block is an integral part of many of the newer equipment racks . It is actually part of the patch panel. Instructions for making connections in the wiring cl oset with this type of equipment follows . 1. Attach one end of a patc h cable to an av ailable por t on the sw ...

  • LevelOne GSW-2476 - page 40

    M AKING N ETWORK C ONNECTIONS 4-4 Fiber Optic SFP Devices An optional Gigabit SFP transceiv er (1 000B ASE-SX, 1000B ASE-LX or 1000B ASE-ZX) can be used for a back bone connection between switc hes, or for connecting to a high-speed ser ver . Each single-mode fiber port requir es 9/125 micron single-mode fiber optic cable with an LC connector at bo ...

  • LevelOne GSW-2476 - page 41

    F IBER O PTIC SFP D EVIC ES 4-5 3. Connect one end of the cable to the LC por t on the switch and the other end to the LC por t on the othe r device. Since LC connectors are keyed , the cable can be atta c hed in only one orientation. Figure 4-3 Making Connections to SFP Transceivers 4. As a connection is made , chec k the Link LED on the switch co ...

  • LevelOne GSW-2476 - page 42

    M AKING N ETWORK C ONNECTIONS 4-6 Connectivity Rules When adding hubs (repeaters) to your netw ork , please follow the connectivity rules listed in the manuals for these products . Howe ver , note that because switc hes break up th e path for connected d evices into separate collision domains, y ou should not include the switch or connected cabling ...

  • LevelOne GSW-2476 - page 43

    C ONNECTIVITY R ULES 4-7 100 Mbps Fast Ethe rnet Collision Domain 10 Mbps Ethernet Collision Domain Table 4-3 Maximum 1000BASE-LX Fiber Optic Cable Length Fiber Diameter Fiber Bandwidth Cable Length Range Connector 9/125 micron single-m ode fiber N/A 2 m - 10km (7 ft - 6.4 miles) LC Table 4-4 Maximum 1000BASE-ZX Fiber Optic Cable Length Fiber Diame ...

  • LevelOne GSW-2476 - page 44

    M AKING N ETWORK C ONNECTIONS 4-8 Cable Labeling and Connection Records When planning a network ins tallation, it is essential to label the opposing ends of cables and to record where ea c h cable is connected. Doing so will enable you to easily locate inter -c onnected devices , isolate faults and change your topolo g y without need for unnecessar ...

  • LevelOne GSW-2476 - page 45

    5-1 C HAPTER 5 C ONFIGURING THE S WITCH Using the Web Interface T h i s s w i t c h p r o v i d e s a n e m b e d d e d HTTP web agent. Using a web browser you can configure the switch and view statistics to mon itor network activit y . The web agent can be accessed b y any computer on the netw ork using a standard web bro wser (Inter net Explorer ...

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    C ONFIGURING THE S WITCH 5-2 Navigating the Web Browser Interface T o access the web-bro wser interface y ou must first ent er a passw ord. The user has read/write access to all configuration parameters and statis tics . The default password for the switch is “admin.” Note: If user input is not detected within five minutes , the cu rrent sessio ...

  • LevelOne GSW-2476 - page 47

    N AVIGATING THE W EB B RO W SE R I NTERFACE 5-3 Configuration Options Configurable parameters hav e a dial og box or a drop-down list. Once a configuration change has been made on a page, be sure to clic k on the Apply button to confir m the new settin g . T he following table summ arizes the web page configuration buttons . Notes: To ensure proper ...

  • LevelOne GSW-2476 - page 48

    C ONFIGURING THE S WITCH 5-4 Main Menu Using the onboard web agent, you can define system pa rameters , manage and control the switc h, and all its ports, or monitor netw ork conditions . The following table brief ly describe s the selections av ailable from the web-brows er interface. Table 5-2 Switch Main Me nu Menu Description Page STATUS 5-6 Ov ...

  • LevelOne GSW-2476 - page 49

    N AVIGATING THE W EB B RO W SE R I NTERFACE 5-5 PORTS 5-21 Settings Configure the speed and duplex mode of the port. 5-21 Storm Control Sets the broadcast storm control parameters. 5-23 Port Mi rroring Set s up the p ort mirroring features of the switch to enable traffic monitoring. 5-24 Cable Diagnostic Diagnoses cabl e faults. 5-25 TRUNKS 5-26 Me ...

  • LevelOne GSW-2476 - page 50

    C ONFIGURING THE S WITCH 5-6 Web Configuration Displaying Status Overview Y ou can easily identify the system by displa ying the device name, location and contact infor mation. Field Attributes System Infor ma tion • System Name – Name assig ned to the switch system. • Number of Ports – Number of built-in ports. • Hardware Version – Har ...

  • LevelOne GSW-2476 - page 51

    W EB C ONFIGURATION 5-7 • Speed/Duplex Status – Shows the current speed and duplex mode. • 10hdx : 10 Mbps half duplex. • 10fdx : 10 Mbps full duplex. • 100hdx : 100 Mbps half duplex. • 100fdx : 100 Mbps full duplex. • 1000fdx : 1000 Mbps full duplex. •F l o w C o n t r o l S t a t u s – Indicates whether flow control is enabled o ...

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    C ONFIGURING THE S WITCH 5-8 We b – Click ST ATUS , Over view . Figure 5-3 Switch Information ...

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    W EB C ONFIGURATION 5-9 Showing Port Statistics Y ou can displa y statistics on netw ork traf fic from the ports. These statistics can be used to identify potential probl ems with the switch (suc h as a faulty port or unusually heavy loading). All values displa yed have been accumulated since the last system re boot, but can be reset to zero b y cl ...

  • LevelOne GSW-2476 - page 54

    C ONFIGURING THE S WITCH 5-10 Received Multicast Pack ets The number of packets, delive red by this sub-layer to a higher (sub-)laye r, wh ich were addressed to a multicast address at this sub-layer. Received Broadca st Packets The number of packets, del ivered by this sub-layer to a higher (sub-)laye r, wh ich were addressed to a broadcast address ...

  • LevelOne GSW-2476 - page 55

    W EB C ONFIGURATION 5-11 Undersize Fra mes The total number of fram es received that were less than 64 octets long (exc luding framing bi ts, but including FCS octets) and were otherwise well formed. Fragments The total nu mber of frames received that were less than 64 octets in length (excluding framing bits, but including FCS octets) and h ad eit ...

  • LevelOne GSW-2476 - page 56

    C ONFIGURING THE S WITCH 5-12 64 Bytes Frames The total number of frames (inclu ding bad packets) received and transmitted that were 64 oc tets in length (excluding framing bits but including FCS octets). 65-127 Byte Frames 128-255 Byte Frames 256-511 Byte Frames 512-1023 Byte Frames 1024-1518 Byte F rames The total number of fram es (including bad ...

  • LevelOne GSW-2476 - page 57

    W EB C ONFIGURATION 5-13 We b – Click ST ATUS , Statistics. Figure 5-4 Port Statistics Displaying System Name Y ou can easily identify the system by displaying the device name. Field Attributes • Switch Name – Name assigned to the switch system. ...

  • LevelOne GSW-2476 - page 58

    C ONFIGURING THE S WITCH 5-14 We b – Click System, Name. Figure 5-5 System Name Setting the Switch’s IP Address This section describes how to config ure an IP interfa ce for manag ement access ov er the netw ork. The IP address for this switch is 192.168.2.10 by default. T o man ually config ure an address , you need to change the switc h’ s ...

  • LevelOne GSW-2476 - page 59

    W EB C ONFIGURATION 5-15 Manual Configuration We b – Click System, LAN Sett ings . Enter the IP address , subnet mask and gateway , then clic k APPL Y . Note that if you c hang e the switch IP address , you mu st close the web interface and star t a new session using the new IP address. Figure 5-6 LAN Settings Configuring the Logon Password The a ...

  • LevelOne GSW-2476 - page 60

    C ONFIGURING THE S WITCH 5-16 We b – Click System, P assw ord. T o change the password for the administrator, enter current password, the new passw ord, confir m it by entering it again, then click APPLY . Figure 5-7 Password Settings Tools On the T ools page, you can rest ore the switch to default sett ings , upgrade the fir mware of the switch, ...

  • LevelOne GSW-2476 - page 61

    W EB C ONFIGURATION 5-17 We b – Click System, T ools, R eset to Factory Defaults. Figure 5-8 Reset to Factory Defaults Upgrade Firmware T o Upg rade the switch system fir mwa re, select “Upg rade Fir mware” from the T ools drop-down list then click on the “Bro wse” button to select the fir mware fi le . Click t he APPL Y button to upgrade ...

  • LevelOne GSW-2476 - page 62

    C ONFIGURING THE S WITCH 5-18 Upload/Download Configuration We b – Click SYSTEM, T ools, Upload/Download Configuration. T o upload or download the configurat ion file , select "Upload/Download Configuration" from the T ools drop-do wn list, then click "Upload" or "Download", a nd then click on the "Bro wse" ...

  • LevelOne GSW-2476 - page 63

    W EB C ONFIGURATION 5-19 Restart Switch We b – Click SYSTEM, T ools, R estar t Switch. T o restar t the switch, select from the T ools drop-down list, and th en click APPL Y . T he reset will be complete when the user interf ace displa ys the login page. Figure 5-12 Restart Switch Static MAC Switches store the MA C addresses for all known devices ...

  • LevelOne GSW-2476 - page 64

    C ONFIGURING THE S WITCH 5-20 We b – Click System, Static MAC . Enter the MA C address, VLAN ID , then click ADD button to add a new static MA C address . Figure 5-13 Static MAC Address Configurat ion Counter Config This pag e allows specific statistics to be selected for monitoring . It is possible to monitor up to fiv e transmit counters and fi ...

  • LevelOne GSW-2476 - page 65

    W EB C ONFIGURATION 5-21 We b – Click System, Counter Config Figure 5-14 Counter Configuration Port Configuration Y ou can use the P or t Configuration page to manually fix the speed, duplex mode, and flow control. Field Attributes • Enable Jum bo Frames – Cl ick to enable or disable Jumbo Frames. • Speed/Duplex – Allows you to manually s ...

  • LevelOne GSW-2476 - page 66

    C ONFIGURING THE S WITCH 5-22 We b – Click PORTS , Settings . Figure 5-15 Port Configuration ...

  • LevelOne GSW-2476 - page 67

    W EB C ONFIGURATION 5-23 Storm Control Broadcast stor ms may occur when a device on your netw ork is malfunctioning, or if application pr ograms are not well designed or properly config ured. If there is to o m uch broadcast traffic on your network, performance can be severely degraded or everything can come to complete halt. Y ou can protect y our ...

  • LevelOne GSW-2476 - page 68

    C ONFIGURING THE S WITCH 5-24 We b – Click PORTS , Stor m Control. Th is page enables you to set the broadcast stor m contro l parameters for ev er y port on the switch. Figure 5-16 Port Broadcast Control Port Mirroring Y ou can mirror traffic from any source port to a target por t for real-time analysis . Y ou can then attach a logic analyzer or ...

  • LevelOne GSW-2476 - page 69

    W EB C ONFIGURATION 5-25 switch, whic h means they will not reach the mirror port or their intended destination port. Input ra te-li miting in conjunction with port f low-control should be used to ensure that t he total ingress bandwidth never ex ceeds the eg ress bandwidth. We b – Click PORTS , P or t Mir roring . Figure 5-17 Port Mirroring Cabl ...

  • LevelOne GSW-2476 - page 70

    C ONFIGURING THE S WITCH 5-26 • Cable Status – Shows the cable length, opera ting conditions and iso lates a variety of common faults that can occur on Category 5 twisted pair cabling. We b – Click PORTS , P or t Mir roring . Figure 5-18 Cable Diagnostics Trunks Membership This page allows y ou to crea te a maxim um of eight t r unks of up to ...

  • LevelOne GSW-2476 - page 71

    W EB C ONFIGURATION 5-27 • Trunk T1-T8 – These columns correspond to the eight trunks that are supported by the switch. To assign a port to a trun k, click on the radio button in the corresponding column, then click APPLY. We b – Click TRUNKS , Membership . T o assign a port to a tr unk, c lick the required tr unk number , the n click APPL Y ...

  • LevelOne GSW-2476 - page 72

    C ONFIGURING THE S WITCH 5-28 •F l o w C o n t r o l – Allows flow control to be enabled or disabled. When the box is checked, flow control is enabled. •P o r t s – Indicates which ports belong to the trunk. We b – Click TRUNKS , Settings. Figure 5-20 Trunk Configuration VLAN Settings This pag e allows you to create and dele te VLANs (Vir ...

  • LevelOne GSW-2476 - page 73

    W EB C ONFIGURATION 5-29 • The switch management interfac e is on VLAN 1 (this cannot be changed) • All ports have a Port VLAN ID (PVID) of 1 • All ports can send and receive both VLAN-tagged and untagged packets (that is, they ar e hybrid ports) In the default configuration, any port is able to send traffic to any other port and a PC connect ...

  • LevelOne GSW-2476 - page 74

    C ONFIGURING THE S WITCH 5-30 For QinQ operation, a cu stomer port should be se t to V LAN un aware and a provider port (trunk port) should be set to VLAN aware. •Q i n Q – A QinQ enabled port will acce pt packets up to 1526 bytes in length, which means double tag he ader frames can be accepted. QinQ should be enabled for provider ports but not ...

  • LevelOne GSW-2476 - page 75

    W EB C ONFIGURATION 5-31 We b – Click VLANS , VL AN Settings . Fill in the required settings for each interface, click Apply . Figure 5-21 VLAN Settings VLAN Memembership Y ou can create up to 255 VLANs ba sed on 802.1Q standard and delete VLANs (Virtual LANs) to change the VLAN membership and behaviour of individual ports . Y ou can crea te new ...

  • LevelOne GSW-2476 - page 76

    C ONFIGURING THE S WITCH 5-32 We b – Click VLANS , VLAN Membership . T o add a new , type into the VLAN ID (1-4095) of the VLAN g roup you w ant the new g roup to be, then click Add to open up the 802.1Q VLAN Group window , on which you can configure VLAN membership . Figure 5-22 802.1Q VLAN Configuration Figure 5-23 802.1Q VLAN Group ...

  • LevelOne GSW-2476 - page 77

    W EB C ONFIGURATION 5-33 QOS Settings QoS (Quality of Ser vice) is a mechanism that is used to prioritize cert ain traffic as it is forwa rd through the swit ch. T raffic can be classified as High or N o r m al p r i or i t y a nd , w h en t h e s w it ch is heavily loaded, it is the Nor mal priority packets that are dropp ed fi rst. Y ou can selec ...

  • LevelOne GSW-2476 - page 78

    C ONFIGURING THE S WITCH 5-34 The Different iated Ser vic es Code P oint (DSCP) is a six-bit field that is contained within an IP (TCP or UDP) header . The six bits al low the DSCP field to take any value in the range 0 - 63 inclusiv e. When QoS Mode is set to DSCP , the DSCP Configuration ta ble is displayed, which allows a priority (nor mal or hi ...

  • LevelOne GSW-2476 - page 79

    W EB C ONFIGURATION 5-35 specified addresses . If anyone tries to access a management interface on the switch from an inv alid address, the switc h will reject the connection. Note: Inv alid frames will not be able to access manage ment interface, but nor mal forwarding is not impacted. We b – Click Security , ACL. Figure 5-25 Management A ccess ...

  • LevelOne GSW-2476 - page 80

    C ONFIGURING THE S WITCH 5-36 IGMP Snoop The switch can use Internet Group Mana gement Protocol (IGMP) to filter multicast traffic . IGMP Snooping moni tors IGMP ser vice requests passing between m ulticast clients and ser vers , and dynamically configures the ports which need to recieve the m ulitcast traffic. Note: For IGMPV3, the switch incude s ...

  • LevelOne GSW-2476 - page 81

    W EB C ONFIGURATION 5-37 We b – Click IGMP Snoop , Settings . Figure 5-26 IGMP Sn ooping Configuration IGMP Status Show the IGMP Snooping statistics for the whole switch Field Attributes • VLAN ID - VLAN ID number. • Querier - Show whether Quer ying is enabled. • Queries transmitted - Show the number of tr ansmitted Query packets. • Queri ...

  • LevelOne GSW-2476 - page 82

    C ONFIGURING THE S WITCH 5-38 We b – Click IGMP Snoop , Status . Figure 5-27 IGMP Snoop Status ...

  • LevelOne GSW-2476 - page 83

    A-1 A PPENDIX A T ROUBLESHOOTING Diagnosing Switch Indicators Table A-1 Troubleshooting Chart Symptom Action Power LED is Off • Check connections between the swit ch, the power cord, and the wall outlet. • Contact your dealer for assistance. • Contact LevelOne Technical Support . Link LED is Off • Verify that the switch and attached device ...

  • LevelOne GSW-2476 - page 84

    T R OUBLESHOOTING A-2 Power and Cooling Problems If the powe r indicator does not turn on when the power cord is plug g ed in, you ma y have a pro blem with the pow er outlet, powe r cord, or internal pow er supply . However , if the unit powers off after r unning for a while, chec k for loose pow er connections, po wer losses or surg es at the pow ...

  • LevelOne GSW-2476 - page 85

    R ESET THE S WITCH A-3 Reset the Switch As situation requires, you might want to reset the switch and to restor e to the default settings . T o reset the switch: 1. Unplug the pow er cord from the pow er socket. 2. Unplug all cables from the por ts . 3. Use an Ethernet cable to connect por t 1 to por t 2. 4. Plug the pow er cord back to the power s ...

  • LevelOne GSW-2476 - page 86

    T R OUBLESHOOTING A-4 ...

  • LevelOne GSW-2476 - page 87

    B-1 A PPENDI X B C ABLES Twisted-Pair Cable and Pin Assignments F or 10BASE-T/100B ASE-TX connections, a twisted-pair cable must hav e two pairs of wires . F or 1000BASE-T connections the twisted-pair cable must ha ve four pairs of wires . Each wi re pair is identified by two different colors . For example , one wire might be g reen and the other, ...

  • LevelOne GSW-2476 - page 88

    C ABLES B-2 10BASE-T/100BASE-TX Pin Assignments Use unshielded twisted-pair (UTP ) or shielded twiste d-pair (STP) ca ble for RJ-45 connections: 100-ohm Categ or y 3 or better cable for 10 Mbps connections , or 100-ohm Categ or y 5 or better cable for 100 Mbps connections . Also be sure that the le ngth of any twiste d-pair connection does not ex c ...

  • LevelOne GSW-2476 - page 89

    T WISTED -P AIR C ABLE AND P IN A SSIGNMENTS B-3 Straight-Through Wiring If the twisted-pair cable is to join tw o por ts and only one of the ports has an internal crossover (MDI-X), the tw o pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on the switch, you can use either straig ht-through or crossover ...

  • LevelOne GSW-2476 - page 90

    C ABLES B-4 Crossover Wiring If the twisted-pair cable is to join two ports and either both ports are labeled with an “X” (indicatin g MDI-X) or neither port is labeled with an “X” (which indicates MDI), a crosso ver must be implemented in the wiring . (When auto-negotiation is enabled for any RJ-45 port on the switch, you can use either st ...

  • LevelOne GSW-2476 - page 91

    T WISTED -P AIR C ABLE AND P IN A SSIGNMENTS B-5 1000BASE-T Pin Assignments All 1000B ASE-T por ts support automati c MDI/MDI-X operation, so y ou can use straight-through cables for all netw ork connections to PCs or ser vers , or to other switches or hubs . The table below shows the 1000BASE-T MDI and MDI-X port pinouts . These por ts require tha ...

  • LevelOne GSW-2476 - page 92

    C ABLES B-6 Note that when testing your cable inst allation, be sure to include all patc h cables between switches and end devices. Adjusting Existing Category 5 Cabling to Run 1000BASE-T If your existing Categor y 5 installa tion does not meet one of the test parameters for 1000B ASE-T , there are ba sically three measures that can be applied to t ...

  • LevelOne GSW-2476 - page 93

    C-1 A PPENDIX C S PECIFICATIONS Physical Characteristics Por t s 20 10/100/1000BASE-T , with auto-negotiation 4 10/100/1000BASE-T shared with 4 SFP transceiv er slots . Network Interface P or ts 1-24: RJ-45 connector, auto MDI/X 10B ASE-T: RJ-45 (100-ohm, UTP ca ble; Categor y 3 or better) 100B ASE-TX: RJ-45 (100-ohm, UTP cable; Categ or y 5 or bet ...

  • LevelOne GSW-2476 - page 94

    S PECIFICATIONS C-2 Size 44.0 x 17.1 x 4.3 cm (17.0 x 6.7 x 1.7 in.) Te m p e r a t u r e Operating: 0 to 40 °C (32 to 104 °F) Storage: -40 to 70 °C (-40 to 158 °F) Humidity Operating: 10% to 90% (non-condensing) AC Input 100 to 240 V , 50-60 Hz, 0.8 A Po wer Supply Internal, auto-ranging transfor mer : 100 to 240 V A C, 50 to 60 Hz Po wer Cons ...

  • LevelOne GSW-2476 - page 95

    S TANDARDS C-3 Softwa re Loading HTTP in-band Standards IEEE 802.3-2005 Ethernet, Fast Ethernet, Gig abit Ethernet IEEE 802.1Q Vir tual LAN IEEE 802.1X, Port-Based Ne twork Access Control, 2001 ISO/IEC 8802-3 Compliances CE Mark Emissions FCC Class A ...

  • LevelOne GSW-2476 - page 96

    S PECIFICATIONS C-4 ...

  • LevelOne GSW-2476 - page 97

    Glossary-1 G LOSSARY 10BASE-T IEEE 802.3 specification for 10 M bps Ethernet over tw o pairs of Categ ory 3 or better UTP cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Fast Ethernet ov er tw o pairs of Categ ory 5 or better UTP cable. 1000BASE-LX IEEE 802.3z specification for Gig a bit Ether net ov er tw o strands of 50/125, 62.5/125 or ...

  • LevelOne GSW-2476 - page 98

    G LOSSAR Y Glossary-2 Bandwidth The differenc e between the highest and lowest frequencies av ail able for network signals . Also synonymous with wire s peed, the ac tual speed of the data transmission along the cable . Collision A condition in which pac kets transmitte d over the cable interfere with eac h other . T heir interfe rence makes both s ...

  • LevelOne GSW-2476 - page 99

    G LOSSAR Y Glossary-3 Full Duplex T ransmission method that allows tw o network devices to trans mit and receive concurrently , effectiv el y do ubling the bandwidth of that link. Gigabit Ethernet A 1000 Mbps network comm unication system based on Ethernet and the CSMA/CD access method. IEEE Institute of Electrica l and Electronic Engineers . IEEE ...

  • LevelOne GSW-2476 - page 100

    G LOSSAR Y Glossary-4 Layer 2 Data Link layer in the ISO 7-Layer Data Communications Protocol. This is related directly to the hardware interface for networ k devices an d passes on traffic based on MA C addresses . LED Light emitting diode used for monito ring a device or netw ork condition. Link Segment Length of twisted-pair or fiber cabl e join ...

  • LevelOne GSW-2476 - page 101

    G LOSSAR Y Glossary-5 Redundant Power Supply (RPS) A backup po wer supply unit that automatically tak es ov er in case the primar y power supply sh ould fail. RJ-45 Connector A connector for twisted-pair wiring . Switched Ports P or ts that are on separate c ollision domains or LAN segments . TIA T elecommunications Industr y Association Transmissi ...

  • LevelOne GSW-2476 - page 102

    G LOSSAR Y Glossary-6 ...

  • LevelOne GSW-2476 - page 103

    Index-1 Numerics 10 Mbps connectivity rules 4-7 100 Mbps connectivity rule s 4-7 1000 Mbps connectivity rule s 4-6 1000BASE-LX fiber cable lengths 4-7 1000BASE-SX fiber cable lengths 4-6 1000BASE-T pin assignment s B-5 ports 1-3 1000BASE-ZX fiber c able lengths 4-7 100BASE-TX cable lengths 4-7 ports 1-3 10BASE-T ports 1-3 10BASE-T/100BASE-TX pin as ...

  • LevelOne GSW-2476 - page 104

    I NDEX Index-2 installation connecting devices to the switch 4-2 desktop or shelf mounting 3-6 port connect ions 4-1 power requirements 3-1 problems A-2 rack mounting 3-3 site requiremen ts 3-1 wiring closet conn ections 4-7 IP address setting 5- 14 L laser safety 4-4 LC port connecti ons 4-4 LED indicators Power 1-4 problems A-1 location requ irem ...

  • LevelOne GSW-2476 - page 105

    I NDEX Index-3 switch ar chitecture 1-2 switchin g, introdu ction to 2-1 T temperature within a rack 3-4 troubles hooting in-band access A-2 power and cooling prob lems A-2 switch indicators A-1 twisted-pair conn ections 4-1 U user pass word 5-15 V VLANs tagging 2-5 W Web interfa ce access requ irements 5-1 configuration but tons 5-3 home page 5-2 ...

  • LevelOne GSW-2476 - page 106

    I NDEX Index-4 ...

  • LevelOne GSW-2476 - page 107

    ...

  • LevelOne GSW-2476 - page 108

    GSW-24 76 E082006-JC-R01 149 100011100H ...

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All of them are important, but the most important information from the point of view of use of the device are in the user manual LevelOne GSW-2476.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use LevelOne GSW-2476 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of LevelOne GSW-2476.

A complete LevelOne manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual LevelOne GSW-2476 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the LevelOne GSW-2476, FAQ or common problems, i.e. places that are most often searched by users in each manual
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