Planet GSW-1601 User manual

10/100/1000Mbps
Gigabit Ethernet Switch
GSW-2401/GSW-1601
User's Manual

Trademarks
Copyright ©PLANET Technology Corp. 2005.
Content subjects to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp.
All other trademarks 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 representation, either implied or expressed,
with respect to the quality, performance, merchantability, or
fitness 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 responsibility 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 find information in this manual that is incorrect, misleading,
or incomplete, 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
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 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 its 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 MODELS: GSW-2401/GSW1601
Rev: 1.0(May.2005)
Part No.: 2010-A50140-000

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
。 Rack ear x 2
。 Screws x 6
。 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:
Chapter 2 Installation
The chapter explains the feature, functionality and the physical
installation of the Switch.
Chapter 3 Switch operation
The chapter explains the Gigabit Ethernet Switch transmit operation.
Chapter 4 Troubleshooting
The chapter explains the troubleshooting of the Gigabit Ethernet
Switch.

Appendix A
This chapter contains cable information of the Gigabit Ethernet
Switch.
1.3 Product Features
。 Complies with IEEE802.3, 10Base-T, IEEE802.3u
100Base-TX, IEEE802.3ab 1000Base-T
。 16/24-Port 10/100/1000Mbps Gigabit 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
。 Provide 272/400KB buffer memory
。 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

1.4 Product Specifications
Model GSW-2401 GSW-1601
Hardware Specification
Network Ports 24 10/100/1000Base-T
RJ-45 MDI/MDI-X ports
16 10/100/1000Base-T
RJ-45 MDI/MDI-X ports
Dimensions (W x H x D) 440 x 44 x 120 mm
Weight (KG) 1.75 KG 1.6 KG
Power Requirement 100~240 VAC, 3.0A, 50-60 Hz
Switch Specification
Switch Architecture Store-and-forward
Address Table 8K entries, auto learning/ageing
Shared Data Buffer 400KB 272KB
Flow Control IEEE 802.3x full duplex operating and flow control
Packet Control Runt & CRC filtering, Broadcast storm control
Switch Fabric 48Gbps 16Gbps
Switch Throughput 35.7Mbps 23.8Mbps
Standard Conformance
Network Standards IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet)
IEEE 802.3ab and IEEE802.3x (flow control)
Operation Temperature 0~50ºC
10% to 90% (Non-condensing)
Humidity -40~70ºC
Regulation Compliance FCC, CE

2. INSTALLATION
This section describes the functionalities of the Gigabit Ethernet
Switch’s components and guides how to install it on the desktop.
Basic knowledge of networking is assumed. Please read this chapter
completely before continuing.
2.1 Product Description
The PLANET GSW-2401/GSW-1601 is 10/100/1000Mbps Gigabit
Ethernet switch with 24/16 ports respectively, and non-blocking
wire-speed performance. With a 48/32Gbps internal switching fabric,
the GSW-2401/GSW-1601 can handle extremely large amounts of
data in a secure topology linking to a backbone or high capacity
servers. The GSW-2401/GSW-1601 has 8K MAC Address table and
provides 400KB/272KB buffer memory. The GSW-2401/
GSW-1601offers wire-speed packets transfer performance without
risk of packet loss. The high data throughput of
GSW-2401/GSW-1601 makes it ideal for most Gigabit environments,
especially while network upgrades to a Gigabit environment.
All RJ-45 copper interfaces support 10/100/1000Mbps
Auto-Negotiation for optimal speed detection through RJ-45 Category
6, 5 or 5e cables. Support is standard for Auto-MDI/MDI-X that can
detect the type of connection to any Ethernet device without requiring
special straight or crossover cables.
The Flow Control function allows your Gigabit switch supported
routers and servers to directly connect to this switch for fast, reliable
data transfer.

2.1.1 Product Overview
The PLANET GSW-2401 and GSW-1601 are Gigabit Ethernet
switches with 24/16 RJ-45 10/100/1000 Mbps ports for high-speed
network connectivity. The switches can also automatically identify and
determine the correct transmission speed and half/full duplex mode of
the attached devices with its 24/16 ports. The Gigabit port 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 product also supports store-and-forward forwarding scheme to
ensure low latency and high data integrity, eliminates unnecessary
traffic and relieves congestion on critical network paths. With an
intelligent address recognition algorithm, the switches could recognize
up to 8K different MAC address and enables filtering and forwarding at
full wire speed.
2.1.2 Switch Front Panel
Figure 2-1 & 2-2 shows a front panel of GSW-2401/GSW-1601
Figure 2-1 GSW-2401 front panel
2.1.3 LED Indicators
Figure 2-2 GSW-1601 front panel
LED Color Function
PWR Green Lights to indicate that powered on.the Switch is
GSW-2401
LNK/ACT
LNK/ACT
1000
1000
100
100
24-Port 10/100/1000
Gigabit Ethernet Switch
GSW-1601
LNK/ACT
1000
100
100
1000
LNK/ACT
16-Port Gigabit Ethernet Switch

LNK/ACT Green Lights to indicate the link through that port is
successfully established.
Blinks to indicate that the switch is actively sending or
receiving data over that port.
1000 Green
Lights to indicate that the port is operating at
1000Mbps.
100 Green
Lights to indicate that the port is operating at 100Mbps.
2.1.4 Switch Rear Panel
Figure 2-3 & 2-4 shows a rear panel of GSW-2401/GSW-1601.
100 ~ 240V AC
50/60 Hz
Figure 2-3 GSW-2401 front panel
100 ~ 240V AC
50/60 Hz
Figure 2-4 GSW-1601 front panel
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 the Switch
This part describes how to install your Gigabit Ethernet Switch and
make connections to it. Please read the following topics and perform
the procedures in the order being presented.

Note: This switch does not need software configuration.
2.2.1 Desktop Installation
To install the switch on desktop, simply follow the next steps:
Step1: Attach the rubber feet to the recessed areas on the bottom of
the switch.
Step2: Place the switch on desktop 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
environmental restrictions discussed in Chapter 1, Section 1.4
Product Specification.
Step4: Connect your switch to network devices.
A. Connect one end of a standard network cable to the
10/100/1000 RJ-45 ports on the Back of the switch.
B. Connect the other end of the cable to the network devices such
as printer servers, 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 switch.
B. Connect the power plug of the power cable to a standard wall
outlet.
When the switch 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/GSW-1601 on a hard flat 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/GSW-1601
Caution:
You must use the screws supplied with the mounting brackets.
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: Procee 2.2.1 ds with the steps 4 and steps 5 of session
Desktop Installation to connect the network cabling and supply
power to your Switch.

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
filtering 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 filtered.
Thereby increase 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 efficiency 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 configured in any Ethernet network environment to significantly
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 filter packets whose destination address is on
the same segment as the source address. This confines the network
traffic to its respective domain, reducing the overall load on the
network.
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.

4. TROUBLESHOOTING
This chapter contains information to help you solve problems. If Giga
Switch is not functioning properly, make sure the Ethernet Switch was
set up according to instructions in this manual.
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 Ethernet Switch. If the
Ethernet Switch is set to full duplex and the partner is set to half
duplex, then the performance will be poor.
Why the Switch doesn't connect to the network
Solution:
Check the LNK/ACT LED on the Switch
Try another port on the Switch I
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

Appendix A Switch's RJ-45 Pin Assignments
A.1 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
The standard cable, RJ-45 pin assignment
A.3 RJ-45 Plug, Jack pin out
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:

2010-A50140-000