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D-Link ™ DES-3250TG
Stackable Layer 2 Switch
User’s Guide
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D-Link DES-3250TG Standalone Layer 2 Switch Information in this document is subject to change without notice. © 2005 D-Link Computer Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden. Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation. Other trademarks and tra
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D-Link DES-3250TG Standalone Layer 2 Switch Table of Contents Preface ..............................................................................................................................................vii Intended Readers...............................................................................................................................vii Notes, Notices, and Cautions ....................................................................................................
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D-Link DES-3250TG Standalone Layer 2 Switch MIBs .............................................................................................................................................. 22 IP Address Assignment ..................................................................................................................... 22 Connecting Devices to the Switch ..................................................................................................... 24 Web-based Switch M
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D-Link DES-3250TG Standalone Layer 2 Switch Authenticator................................................................................................................................. 99 Client........................................................................................................................................... 100 Authentication Process................................................................................................................. 101 Understanding
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D-Link DES-3250TG Standalone Layer 2 Switch Reset............................................................................................................................................ 149 Reset System ............................................................................................................................... 149 Reset Config................................................................................................................................. 150 Logout...
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D-Link DES-3250TG Standalone Layer 2 Switch Preface The DES-3250TG Manual is divided into sections that describe the system installation and operating instructions with examples. Section 1, Introduction - Describes the Switch and its features. Section 2, Unpacking and Setup- Helps you get started with the basic installation of the Switch and also describes the front panel, rear panel, side panels, and LED indicators of the Switch. Section 3, Identifying External Components - Tell
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D-Link DES-3250TG Standalone Layer 2 Switch 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 a potential for property damage, personal injury, or death. 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
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D-Link DES-3250TG Standalone Layer 2 Switch Safety Instructions (continued) • To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical 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
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D-Link DES-3250TG Standalone Layer 2 Switch Safety Instructions (continued) 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 the component rail release latches and sliding a component into or out of a rack; the slide rails can pinch your fingers. After a component is inserted into the rack, carefully extend the rail into a locking position,
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D-Link DES-3250TG Standalone Layer 2 Switch Section 1 Introduction Fast Ethernet Technology Gigabit Ethernet Technology Switch Stacking Performance Features Ports This section describes the functionality features of the DES-3250TG. Fast Ethernet Technology 100Mbps Fast Ethernet (or 100BASE-T) 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
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D-Link DES-3250TG Standalone Layer 2 Switch Features The DES-3250TG Switch was designed for easy installation and high performance in an environment where traffic on the network and the number of users increase continuously. Switch features include: • Store and forward switching scheme. • Full and half-duplex for both 10Mbps and 100Mbps connections. The front-port Gigabit Ethernet module operates at full duplex only. Full duplex allows the switch port to simultaneously transmit and recei
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D-Link DES-3250TG Standalone Layer 2 Switch panel modules can be used simultaneously, the ports must be different. For example, if port 49x is used on the Mini GBIC module, port 49x is not available on the 1000BASE-T module, and vice versa. • RS-232 DCE Diagnostic port (console port) for setting up and managing the Switch via a connection to a console terminal or PC using a terminal emulation program. Traffic Classification and Prioritization • Based on 802.1p priority bits. • Four pr
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D-Link DES-3250TG Standalone Layer 2 Switch Section 2 Unpacking and Setup Unpacking Installation Power On This chapter provides unpacking and setup information for the Switch. Unpacking Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items: • One DES-3250TG Standalone Layer 2 Switch • Mounting kit: 2 mounting brackets and screws • Four rubber feet with adhesive backing • One AC power cord • This User’s Guide with
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D-Link DES-3250TG Standalone Layer 2 Switch Figure 2-1. Installing rubber feet for desktop installation Rack Installation The DES-3250TG can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with other equipment. To install, attach the mounting brackets on the switch’s side panels (one on each side) and secure them with the screws provided. Figure 2- 2. Attaching the mounting brackets to the switch Then, use the screws provided with the e
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D-Link DES-3250TG Standalone Layer 2 Switch Power on The DES-3250TG switch can be used with AC power supply 100 - 240 VAC, 50 - 60 Hz. The power switch is located at the rear of the unit adjacent to the AC power connector and the system fan. The switch’s power supply will adjust to the local power source automatically and may be turned on without having any or all LAN segment cables connected. After the power switch is turned on, the LED indicators should respond as follows: • All LED indi
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D-Link DES-3250TG Standalone Layer 2 Switch Section 3 Identifying External Components Front Panel Rear Panel Side Panels Gigabit Combo Ports LED Indicators This chapter describes the front panel, rear panel, side panels, and optional plug-in module, and LED indicators of the DES-3250TG. Front Panel The front panel of the Switch consists of LED indicators, an RS-232 communication port, 48 (10/100 Mbps) Ethernet/Fast Ethernet ports, and a pair of Gigabit Ethernet Combo ports for 1000
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D-Link DES-3250TG Standalone Layer 2 Switch The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in the female connector of the provided power cord into this socket, and the male side of the cord into a power outlet. Supported input voltages range from 100 ~ 240 VAC at 50 ~ 60 Hz. Side Panels Each side panel contains heat vents to help to dissipate heat. Figure 3-3. Side panel views of the Switch The system fans are used to dissipate heat. Th
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D-Link DES-3250TG Standalone Layer 2 Switch ● Power – This indicator on the front panel should be lit during the Power-On Self Test (POST). It will light green approximately 2 seconds after the switch is powered on to indicate the ready state of the device. ● Console – This indicator is lit green when the switch is being managed via local console management through the RS-232 console port. ● Link/Act – These indicators are located to the left and right of each port. They are lit when ther
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D-Link DES-3250TG Standalone Layer 2 Switch Section 4 Connecting the Switch Switch to End Node Switch to Hub or Switch 10BASE-T Device 100BASE-TX Device Stacking vs. Standalone Operation Managing Switch Stacks This chapter describes how to connect the DES-3250TG to your Ethernet/Fast Ethernet/Gigabit Ethernet network. The Switch’s auto-detection feature allows all 48 10/100 ports to support both MDI-II and MDI-X connections. Switch to End Node End nodes include PCs outfitted wit
