Planet GSW-2401 User manual

Trademarks
Copyright © PLANET Technology Corp. 2004.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp. All other trade-
marks belong to their respective owners.
Disclaimer
PLANET Technology does not warrant that the hardware will work properly in
all environments and applications, and makes no warranty and representa-
tion, either implied or expressed, with respect to the quality, performance,
merchantability, or tness for a particular purpose.
PLANET has made every effort to ensure that this User’s Manual is accurate;
PLANET disclaims liability for any inaccuracies or omissions that may have
occurred.
Information in this User’s Manual is subject to change without notice and does
not represent a commitment on the part of PLANET. PLANET assumes no re-
sponsibility for any inaccuracies that may be contained in this User’s Manual.
PLANET makes no commitment to update or keep current the information
in this User’s Manual, and reserves the right to make improvements to this
User’s Manual and/or to the products described in this User’s Manual, at any
time without notice.
If you nd information in this manual that is incorrect, misleading, or incom-
plete, we would appreciate your comments and suggestions.
FCC Warning
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 gen-
erates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the Instruction manual, may cause harmful interfer-
ence to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause
radio interference, in which case the user may be required to take adequate
measures.
Revision
PLANET Gigabit Ethernet Switch User’s Manual
FOR MODEL: GSW-2401
Part No.: EM-GSW2401v1

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Table of Contents
Chapter 1 Introduction 1
1.1 Package Contents 1
1.2 How to Use This Manual 1
1.3 Product Features 2
1.4 Product Specifications 3
Chapter 2 Installation 5
2.1 Product Description 5
2.2 Installing a GSW-2401 6
Chapter 3 Switch Operation 9
3.1 Address Table 9
3.2 Learning 9
3.3 Forwarding & Filtering 9
3.4 Store-and-Forward 9
3.5 Auto-Negotiation 10
Chapter 4 Troubleshooting 11
Appendix A 13
A.1 Switch s RJ-45 Pin Assignments 13
A.2 10/100Mbps, 10/100Base-TX 13

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Chapter 1
INTRODUCTION
1.1 Package Contents
Check the contents of your package for following parts:
• Gigabit Ethernet Switch x 1
• User’s manual x 1
• Power cord x 1
• 19” rack mounting kit x 1
• Rubber feet x 4
If any of these are missing or damaged, please contact your dealer immediately, if
possible, retain the carton including the original packing material, and use them against
to repack the product in case there is a need to return it to us for repair.
1.2 How to Use This Manual
This Gigabit Ethernet Switch User Manual is structured as follows:
• Section 2, Installation
It explains the functions of GSW-2401 and how to physically install the GSW-
2401.
• Section 3 Switch operation
It contains switch operation of GSW-2401.
• Section 4 Troubleshotting
It contains troubleshooting of GSW-2401.
• Appendices
It contains cable information of GSW-2401.

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1.3 Product Features
• Comply with IEEE802.3, 10Base-T, IEEE802.3u, 100Base-TX and IEEE802.3ab,
1000Base-T
• 24-port 10/100/1000Mbps Ethernet ports
• Features Store-and-Forward mode with wire-speed filtering and forwarding
rates
• Hardware based 10/100Mbps, half/full duplex and 1000Mbps full duplex mode,
flow control and auto-negotiation
• IEEE802.3x flow control for full duplex operation and backpressure for half
duplex operation
• Integrated address look-up engine, support 8K absolute MAC addresses
• 400KB on chip frame buffer
• 9K Jumbo packet support
• Automatic address learning and address aging
• Supports Auto MDI/MDI-X function
• Support CSMA/CD protocol
• 100~240VAC, 3.0A, 50~60Hz universal Power input
• FCC, CE class A compliant

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1.4 Product Specications
Model GSW-2401
Hardware Specification
Network ports 24
Switch architecture Store-and-Forward
Switch Fabric 48Gbps
Switch throughput 35.7Mpps
Address Table 8K entries
Data Buffer 400KB
Flow Control Back pressure for half duplex, IEEE 802.3x Pause
Frame for full duplex
Dimensions (mm) 440 x 200 x 44 (1U height)
Weight 2.8kg
Power Requirement 100-240V AC, 3.0A, 50-60 Hz
Power Consumption 46 watts, 157 BTU/hr
Standards Conformance
Network Standards IEEE 802.3 (Ethernet)
IEEE 802.3u (Fast Ethernet)
IEEE 802.3ab (Gigabit Ethernet)
IEEE 802.3x (Full-duplex flow control)
Operating Temperature 0~50°C
Storage Temperature -40~70°C
Humidity 10% to 90% (Non-condensing)
Regulation Compliance FCC, CE

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Chapter 2
INSTALLATION
This section describes the functionalities of GSW-2401's components and guides how to
install it on the desktop or shelf. Basic knowledge of networking is assumed. Please read
this chapter completely before continuing.
2.1 Product Description
The PLANET GSW-2401 is a 24-port 10/100/1000Mbps Ethernet Switch with non-blocking
wire-speed performance. With 48Gbps internal switching fabric, the GSW-2401 can
handle extremely large amounts of data transmission in a secure topology linking to a
backbone or high-power servers. The GSW-2401 could recognize up to 8K MAC Address
table and provides 400 KB on-chip frame buffer.
The GSW-2401 offers wire-speed packet transfer performance without risk of packet loss.
The high data throughput, it can provide the most convenient for user to upgrade their
network to Gigabit environment.
2.1.1 Product Overview
PLANET GSW-2401 is a Gigabit Ethernet Switch with 24 RJ-45 10/100/1000Mbps ports
for high-speed network connectivity. The GSW-2401 can also automatically identify and
determine the correct transmission speed and half/full duplex mode of the attached
devices with its 24 ports. The Gigabit ports with jumbo frame feature supported, can
handle extremely large amounts of data transmission in a secure topology linking to a
backbone or high-power servers.
This products also supports store-and-forward forwarding scheme to ensure low latency
and high data integrity, eliminates unnecessary trafc and relieves congestion on critical
network paths. With an intelligent address recognition algorithm, GSW-2401 could
recognize up to 8K different MAC address and enables ltering and forwarding at full
wire speed.
2.1.2 GSW-2401 Front Panel
Figure 2-1 shows a front panel of GSW-2401.
Figure 2-1 PLANET GSW-2401 Front Panel
2.1.3 LED Indicators
System
LED Color Function
PWR Green Lights to indicate that the Switch has power.

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Per 10/100/1000Mbps Port
LED Color Function
1000 Green Lights to indicate that the port is operating
at 1000 Mbps. Off to indicate that the port
is operating at 100Mbps or 10 Mbps.Blinks
to indicate the Switch is actively receiving or
sending the data over the port
10/100 Green/
Orange
Lights green to indicate that the port is oper-
ating at 100 Mbps. Lights orange to indicate
that the port is operating at 10 Mbps.Blinks
to indicate the Switch is actively receiving or
sending the data over the port
2.1.4 GSW-2401 Rear Panel
The rear panel of the Switch indicates an AC inlet power socket, which accepts input
power from 100 to 240VAC, 3.0A, 50-60Hz.
Figure 2-2 Rear Panel of GSW-2401
Power
Notice:
1. The device is a power-required device, it means, it will not
work till it is powered. If your networks should active all
the time, please consider using UPS (Uninterrupted Power
Supply) for your device. It will prevent you from network
data loss or network downtime.
2. In some area, installing a surge suppression device may
also help to protect your switch from being damaged by
unregulated surge or current to the Switch or the power
adapter.
2.2 Installing a GSW-2401
This part describes how to install your GSW-2401 Gigabit Ethernet Switch and make
connections to the Switch. Please read the following topics and perform the procedures
in the order being presented. PLANET GSW-2401 Gigabit Ethernet Switch do not need
software conguration. To install your GSW-2401 on a desktop or shelf, simply complete
the following steps.
2.2.1 Desktop Installation
To install a GSW-2401 on a desktop or shelf, simply complete the following steps:

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Step1: Attach the rubber feet to the recessed areas on the bottom of the Switch.
Step2: Place the GSW-2401 on a desktop or shelf near an AC power source.
Step3: Keep enough ventilation space between the Switch and the surrounding
objects.
 NOTE:
When choosing a location, please keep in mind the envi-
ronmental restrictions discussed in Chapter 1, Section 4,
Specification.
Step4: Connect your GSW-2401 to network devices.
A. Connect one end of a standard network cable to the 10/100/1000 RJ-45 ports
on the front of the GSW-2401.
B. Connect the other end of the cable to the network devices such as printer serv-
ers, workstations or routers etc.
 NOTE:
Connection to the Switch requires UTP Category 5 network
cabling with RJ-45 tips. For more information, please see the
Cabling Specification in Appendix A.
Step5: Supply power to the Switch.
A. Connect one end of the power cable to the GSW-2401.
B. Connect the power plug of the power cable to a standard wall outlet.
When the GSW-2401 receives power, the Power LED should remain solid Green.
2.2.2 Rack Mounting
To install the switch in a 19-inch standard rack, follow the instructions described below.
Step1: Place your GSW-2401 on a hard at surface, with the front panel positioned
towards your front side.
Step2: Attach a rack-mount bracket to each side of the Switch with supplied screws
attached to the package. Figure 2-3 shows how to attach brackets to one
side of the Switch.
Figure 2-3 Attaching the brackets to the GSW-2401

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Caution:
You must use the screws supplied with the mounting brack-
ets. Damage caused to the parts by using incorrect screws
would invalidate your warranty.
Step3: Secure the brackets tightly.
Step4: Follow the same steps to attach the second bracket to the opposite side.
Step5: After the brackets are attached to the Switch, use suitable screws to
securely attach the brackets to the rack, as shown in Figure 2-4.
Figure 2-4 Mounting the Switch in a Rack
Step6: Proceed with the steps 4 and steps 5 of session 2.2.1 Desktop Installation
to connect the network cabling and supply power to your Switch.

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Chapter 3
SWITCH OPERATION
3.1 Address Table
The Switch is implemented with an address table. This address table composed of many
entries. Each entry is used to store the address information of some node in network,
including MAC address, port no, etc. This information comes from the learning process
of Ethernet Switch.
3.2 Learning
When one packet comes in from any port, the Switch will record the source address, port
no. And the other related information in address table. This information will be used to
decide either forwarding or ltering for future packets.
3.3 Forwarding & Filtering
When one packet comes from some port of the Ethernet Switching, it will also check
the destination address besides the source address learning. The Ethernet Switching will
lookup the address-table for the destination address. If not found, this packet will be
forwarded to all the other ports except the port, which this packet comes in. And these
ports will transmit this packet to the network it connected. If found, and the destination
address is located at different port from this packet comes in, the Ethernet Switching will
forward this packet to the port where this destination address is located according to the
information from address table. But, if the destination address is located at the same port
with this packet comes in, then this packet will be ltered. Thereby increasing the network
throughput and availability.
3.4 Store-and-Forward
Store-and-Forward is one type of packet-forwarding techniques. A Store-and-Forward
Ethernet Switching stores the incoming frame in an internal buffer, do the complete error
checking before transmission. Therefore, no error packets occurrence, it is the best choice
when a network needs efciency and stability.
The Ethernet Switch scans the destination address from the packet-header, searches the
routing table provided for the incoming port and forwards the packet, only if required. The
fast forwarding makes the switch attractive for connecting servers directly to the network,
thereby increasing throughput and availability. However, the switch is most commonly
used to segment existing hubs, which nearly always improves overall performance. An
Ethernet Switching can be easily congured in any Ethernet network environment to
signicantly boost bandwidth using conventional cabling and adapters.
Due to the learning function of the Ethernet switching, the source address and
corresponding port number of each incoming and outgoing packet are stored in a routing
table. This information is subsequently used to lter packets whose destination address is
on the same segment as the source address. This connes network trafc to its respective
domain, reducing the overall load on the network.

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The Switch performs “Store and forward” therefore, no error packets occur. More reliably,
it reduces the re-transmission rate. No packet loss will occur.
3.5 Auto-Negotiation
The STP ports on the Switch have built-in Auto-negotiation . This technology automatically
sets the best possible bandwidth when a connection is established with another network
device (usually at Power On or Reset). This is done by detect the modes and speeds at
the second of both device is connected and capable of, both 10Base-T and 100Base-TX
devices can connect with the port in either Half- or Full-Duplex mode. 1000Base-T can be
only connected in Full-duplex mode.

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Chapter 4
TROUBLESHOOTING
This chapter contains information to help you solve problems. If Giga Switch is not
functioning properly, make sure the Giga Switch was set up according to instructions in
this manual.
The 10/100 or 1000 LED is not lit
Solution:
Check the cable connection and its quality.
Some stations cannot talk to other stations located on the other port
Solution:
The address table may contain older information than of the address table of
that node. Please power down to refresh the address information.
Performance is bad
Solution:
Check the full duplex status of the partner Switch or device. The partner switch
is run at full duplex and the Switch runs at Auto-Negotiation (half-duplex
mode), then the performance will be poor.
Why the Switch doesn t connect to the network
Solution:
Check the LED on the Switch
Try another port on the Switch
Make sure the cable is installed properly
Make sure the cable is the right type
Turn off the power. After a while, turn on power again

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APPENDIX A
A.1 Switch s RJ-45 Pin Assignments
1000Mbps, 1000Base T
Contact MDI MDI-X
1 BI_DA+ BI_DB+
2 BI_DA- BI_DB-
3 BI_DB+ BI_DA+
4 BI_DC+ BI_DD+
5 BI_DC- BI_DD-
6 BI_DB- BI_DA-
7 BI_DD+ BI_DC+
8 BI_DD- BI_DC-
Implicit implementation of the crossover function within a twisted-pair cable, or at a
wiring panel, while not expressly forbidden, is beyond the scope of this standard.
A.2 10/100Mbps, 10/100Base-TX
When connecting your 10/100Mbps Ethernet Switch to another switch, a bridge or a hub,
a straight or crossover cable is necessary. Each port of the Switch supports auto-MDI/
MDI-X detection. That means you can directly connect the Switch to any Ethernet devices
without making a crossover cable. The following table and diagram show the standard
RJ-45 receptacle/ connector and their pin assignments:
RJ-45 Connector pin assignment
Contact
MDI
Media Dependant
Interface
MDI-X
Media Dependant
Interface -Cross
1 Tx + (transmit) Rx + (receive)
2 Tx - (transmit) Rx - (receive)
3 Rx + (receive) Tx + (transmit)
4, 5 Not used
6 Rx - (receive) Tx - (transmit)
7, 8 Not used

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The standard cable, RJ-45 pin assignment
The standard RJ-45 receptacle/connector
There are 8 wires on a standard UTP/STP cable and each wire is color-coded. The following
shows the pin allocation and color of straight cable and crossover cable connection:
Figure A-1: Straight-Through and Crossover Cable
Please make sure your connected cables are with same pin assignment and color as above
picture before deploying the cables into your network.

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Part No.:EM_GSW2401v1