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LevelOne
GSW-2476
24-Port Gigabit w/ 4-Port SFP
Web Smart Switch
User Manual
Version 1.0-0608
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COMPLIANCES 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 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 the instruction manual, may cause harmful interference to radio c
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COMPLIANCES CE Mark Declaration of Conformance for EMI and Safety (EEC) This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied: RFI Emissio
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COMPLIANCES Safety Compliance Warning: Fiber Optic Port Safety When using a fiber optic port, never look at the transmit laser while CLASS I it is powered on. Also, never look directly at the fiber TX port and LASER DEVICE fiber cable ends when they are powered on. Avertissment: Ports pour fibres optiques - sécurité sur le plan optique Ne regardez jamais le laser tant qu’il est sous tension. Ne regardez DISPOSITIF LASER jamais directement le port TX (Transmission) à fibres optiques et les DE
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COMPLIANCES Important! Before making connections, make sure you have 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. - Type SV or SJ - 3-conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth-grounding type with NE
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COMPLIANCES Warnings and Cautionary Messages Warning: This product does not contain any serviceable user parts. Warning: Installation and removal of the unit must be carried out by qualified personnel only. Warning: When connecting this device to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards. Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requi
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COMPLIANCES Purpose This guide details the hardware features of this switch, including Its physical and performance-related characteristics, and how to install the switch. Audience This guide is for system administrators with a working knowledge of network management. You should be familiar with switching and networking concepts. Related Publications As part of the switch firmware, there is an online web-based help that describes all management related features. viii
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TABLE OF CONTENTS 1 About GSW-2476 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Switch Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Network Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 10/100/10
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TABLE OF CONTENTS 4 Making Network Connections . . . . . . . . . . . . . . . . . . . 4-1 Connecting Network Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Twisted-Pair Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Connecting to PCs, Servers, Hubs and Switches . . . . . . . . . . . . 4-2 Network Wiring Connections . . . . .
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TABLE OF CONTENTS VLAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28 QOS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34 IGMP Snoop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36 A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1 Diagnosing
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TABLE OF CONTENTS xii
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TABLES Table 1-1 Port Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 1-2 Power Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Table 4-1 Maximum 1000BASE-T Gigabit Ethernet Cable Length . . . . 4-6 Table 4-2 Maximum 1000BASE-SX Fiber Optic Cable Length . . . . . . . 4-6 Table 4-3 Maximum 1000BASE-LX Fiber Optic Cable Length . . . . . . . 4-7 Table 4-4 Maximum 1000BASE-ZX Fiber Optic Cable Length . . . . . . 4-7 Ta
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IGURES F Figure 1-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Figure 1-2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Figure 1-3 Port LEDs and Power LED . . . . . . . . . . . . . . . . . . . . . . . 1-4 Figure 1-4 Power Supply Socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Figure 2-1 Collapsed Backbone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Figure 2-2 Central W
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FIGURES Figure 5-19 Trunk Membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27 Figure 5-20 Trunk Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28 Figure 5-21 VLAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 Figure 5-22 802.1Q VLAN Configuration . . . . . . . . . . . . . . . . . . . . . 5-32 Figure 5-23 802.1Q VLAN Group . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32 Figure 5-24 QoS Settings . . . . . .
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FIGURES xvi
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CHAPTER 1 ABOUT GSW-2476 Overview LevelOne GSW-2476 is an intelligent Layer 2 switch with 24 10/100/ * 1000BASE-T ports, four of which are combination ports that are shared with four SFP transceiver slots (see Figure 1-1, Ports 21-24). Port Status Indicators 10/100/1000 Mbps RJ-45 Ports 12 3 4 5 67 8 910 11 12 level GSW-2476 24-/ Port Gigabit w 4-Port SFP Web Smart Switch 12 3 4 5 6 78 9 10 11 12 1000 Shared SFP Port Link/Act o n e 1000 Link/Act Power 13 14 15 16 17 18 19 20 21 22 23 24 13 14
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ABOUT GSW-2476 Switch Architecture The switch employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection. The switch uses store-and-forward switching to ensure maximum data integrity. With store-and-forward switching, the entire packet must be received into a buffer and checked for v
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DESCRIPTION OF HARDWARE Description of Hardware 10/100/1000BASE-T Ports The switch contains 24 RJ-45 ports that operate at 10 Mbps or 100 Mbps, half or full duplex, or at 1000 Mbps, full duplex. Because all ports on the switch support automatic MDI/MDI-X operation, you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. (See “1000BASE-T Pin Assignments” on page B-5.) Each of these ports support auto-negotiation, so the optimum transm
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ABOUT GSW-2476 4-Port SFP Web Smart Switch 12 3 4 5 6 78 9 10 11 12 1000 Link/Act 1000 Link/Act 13 14 15 16 17 18 19 20 21 22 23 24 Power Power Status LED Port Status LEDs 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 On/Flashing Port has established a valid network connection. (Link/Activity) Green Flashing indicates activity. Off There is no valid link on the port. 1000 Mbps On Green Port is operating at 1000 Mbp
