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
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
2
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
3
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.
4
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.
5
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.
6
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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