LevelOne GSW-2453 Manuale utente

GSW-2453 Gigabit Chassis switch

User Guide

Contents

1. INTRODUCTION........................................................................................................1

Features..........................................................................................................................1

Package Contents ..........................................................................................................2

Ethernet Switching Technology......................................................................................2

2. HARDWARE DESCRIPTION.....................................................................................4

Physical Dimension ........................................................................................................4

Front Panel.....................................................................................................................4

LED Indicators................................................................................................................4

Rear Panel......................................................................................................................6

Desktop Installation ........................................................................................................6

Rack-mounted Installation..............................................................................................6

3. NETWORK APPLICATION........................................................................................8

4. TROUBLESHOOTING...............................................................................................9

5. TECHNICAL SPECIFICATION................................................................................11

1. Introduction

GSW-2453, 3-slot Gigabit Chassis switch, is a modular Switch that can be used to

build high-performance switched workgroup networks. This switch is a

store-and-forward device that offers low latency for high-speed networking. The Switch

is targeted at workgroup, department or backbone computing environment.

GSW-2453 features a “store-and-forward “ switching scheme. This allows the switch to

auto-learn and store source address in an 4K-entry MAC address table.

MDI (Medium Dependent Interface) Port is also called an "uplink port". The MDI port

does not cross transmit and receive lines, which is done by the regular ports (MDI-X

ports) that connect to end stations. In general, MDI means connecting to another Hub

or Switch while MDIX means connecting to a workstation or PC. Therefore, Auto

MDI/MDIX means that you can connect to another Switch or workstation without

changing non-crossover or crossover cabling.

GSW-2453 has 3-module slot. User can accord their needs to purchase the modules.

This can give elasticity on network application.

Features

Compatible with IEEE 802.3 10Base-T, IEEE802.3u 100Base-TX, IEEE802.3z

gigabit fiber and IEEE802.3ab 1000Base-T

Support 8 port gigabit 10/100/1000Tx module, 8 port Mini GBIC module, 4 port

10/100/1000TX + 4 port Mini GBIC module

IEEE802.3x flow control

¾Pause frame for 10/100/1000Mbps full duplex

¾Backpressure for 10/100 Mbps half duplex

10Kbytes Jumbo packet support

Store and forward architecture

19 inch Rack mount design

Formatted: Bullets and Numbering

Package Contents

Unpack the contents of the GSW-2453 and verify them against the checklist

below.

GSW-2453

Power Cord

Four Rubber Feet

Rack-mounted kit

User Guide

GSW-2453 Four Rubber Feet Power Cord

Rack-mountedKit UserGuide

Figure 1-2. Package Contents

Compare the contents of your GSW-2453 package with the standard checklist above.

If any item is missing or damaged, please contact your local dealer for service.

EthernetSwitchingTechnology

Ethernet Switching Technology dramatically boosted the total bandwidth of a network,

eliminated congestion problems inherent with CSMA/CD (Carrier Sense multiple

access with Collision Detection) protocol, and greatly reduced unnecessary

transmissions.

This revolutionized networking. First, by allowing two-way, simultaneous transmissions

over the same port (Full-duplex), which essentially doubled the bandwidth. Second, by

reducing the collision domain to a single switch-port, which eliminated the need for

carrier sensing. Third, by using the store-and-forward technology’s approach of

inspecting each packet to intercept corrupt or redundant data, switching eliminated

unnecessary transmission that slow the network. By employing address learning,

which replaced the inefficient receiving port.

Auto-negotiation regulates the speed and duplex of each port, based on the capability

of both devices. Flow-control allows transmission from a 1000Mbps node to a

100Mbps node without loss of data. Auto-negotiation and flow-control may require

disablement for some networking operations involves legacy equipment. Disabling the

auto-negotiation is accomplished by fixing the speed or duplex of a port.

Ethernet Switching Technology supplied higher performance at costs lower than other

solutions. Wider bandwidth, no congestion, and the reduction in traffic is why switching

is replacing expensive routers and inefficient hubs as the ultimate networking solution.

Switching brought a whole new way of thinking to networking.

2. Hardware Description

This Section mainly describes the hardware of the GSW-2453, and gives a physical

and functional overview of this chassis switch.

PhysicalDimension

The GSW-2453 physical dimension is 440mm(W) x 280mm(D) x 44mm(H).

FrontPanel

The Front Panel of the GSW-2453 consists of 3 module slots.

Figure 2-1 The Front Panel of the GSW-2453

The modules in the picture are optional, not including in the package.

LEDIndicators

The LED Indicators gives real-time information of systematic operation status. The

LED indicators are located in each module. The LED indicators will be different for

different type of module. The following table provides descriptions of LED status and

their meaning.

System

LED Status Description

Power Green Power On

Off Power is not connected

Gigabit Copper Module

LED Status Description

1000/100

Green In 1000Mpbs speed

Orange In 100Mbps speed

Off In 10Mbps or no device is connected.

LK/ACT

Green The port is connecting with the device.

Blinks The port is receiving or transmitting data.

Off No device attached.

Gigabit Mini GBIC Module

LED Status Description

LK/ACT

Green The port is connecting with the device.

Blinks The port is receiving or transmitting data.

Off No device attached.

RearPanel

The 3-pronged power plug, 2 fans, power switching is located at the rear panel of the

GSW-2453 as shown in Figure 2-2. The switch will work with AC power in the range of

100-240V AC, 50-60Hz.

Figure 2-2. The Rear Panel of the 3-slot Gigabit Cassis switch

Desktop Installation

Set the Switch on a sufficiently large flat space with a power outlet nearby. The surface

where you put your Switch should be clean, smooth, level and sturdy. Make sure there

is enough clearance around the Switch to allow attachment of cables, power cord and

allow air circulation.

Attaching Rubber Feet

A. Make sure mounting surface on the bottom of the Switch is grease and dust free.

B. Remove adhesive backing from your Rubber Feet.

C. Apply the Rubber Feet to each corner on the bottom of the Switch. These footpads

can prevent the Switch from shock/vibration.

Rack-mountedInstallation

The switch come with a rack-mounted kit and can be mounted in an EIA standard size,

19-inch Rack. The Switch can be placed in a wiring closet with other equipment.

Perform the following steps to rack mount the switch:

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