Comet Labs 24-Port 1000BASE-T User Manual
24-Port 1000BASE-T
Web Smart Gigabit
Ethernet Switch
User’s Guide
FCC Warning
This equipment has been tested and found to comply with the
regulations 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 this user’s guide, 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 his or her 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.
VCCI Warning
This is a product of VCCI Class A Compliance.
UL Warning
a) Elevated Operating Ambient Temperature- If installed in a closed
or multi -unit rack assembly, the operating ambient temperature of the
rack environment may be greater than room ambient. Therefore,
consideration should be given to installing the equipment in an
environment compatible with the manufacturer's maximum rated
ambient temperature (Tmra).
b) Reduced Air Flow- Installation of the equipment in a rack should
be such that the amount of air flow required for safe operation of the
equipment is not compromised.
c) Mechanical Loading- mounting of the equipment in the rack
should be such that a hazardous condition is not achieved due to
uneven mechanical loading.
d) Circuit Overloading- Consideration should be given to the
connection of the equipment to the supply circuit and the effect that
overloading of circuits might have on over current protection and
supply wiring. Appropriate consideration of equipment nameplate
ratings should be used when addressing this concern.
e) Reliable grounding - Reliable grounding of rack-mounted
equipment should be maintained. Particular attention should be given
to supply connections other than direct connections to the branch
circuit (e.g., use of power strips).
Ver. 1.00
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TABLE OF CONTENT
About This Guide.....................................................................................1
Purpose.................................................................................................1
Terms/Usage........................................................................................1
Introduction..............................................................................................3
Gigabit Ethernet Technology..............................................................3
Fast Ethernet Technology....................................................................4
Switching Technology.........................................................................5
VLAN (Virtual Local Area Network)................................................6
Features.................................................................................................6
Unpacking and Installation......................................................................9
Unpacking ............................................................................................9
Installation............................................................................................9
Rack Mounting...................................................................................10
Connecting Network Cable...............................................................11
AC Power...........................................................................................11
Identifying External Components.........................................................13
Front Panel.........................................................................................13
Rear Panel..........................................................................................14
Understanding LED Indicators..............................................................15
Power and System LEDs...................................................................15
Ports 1~24 Status LEDs.....................................................................16
Configuration..........................................................................................17
Installing the Web Management Utility...........................................17
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Discovery List....................................................................................18
Monitor List.......................................................................................19
Device Setting....................................................................................21
Toolbar ...............................................................................................23
Configuring the Switch......................................................................24
Login...................................................................................................24
Setup Menu........................................................................................27
Configuring Setup Setting.................................................................27
Port Settings...................................................................................27
VLAN Settings (Virtual Local Area Network)............................29
Trunk Setting..................................................................................30
Mirror Setting.................................................................................31
Device Status..................................................................................31
Statistic...........................................................................................32
System Setting................................................................................33
Trap Setting....................................................................................33
Set Password..................................................................................34
Backup Setting...............................................................................35
Reset Setting...................................................................................35
Logout.................................................................................................36
Technical Specifications........................................................................37
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ABOUT THIS GUIDE
Congratulations on your purchase of the 24-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch. This device integrates 1000Mbps
Gigabit Ethernet, 100Mbps Fast Ethernet and 10Mbps Ethernet
network capabilities in a highly flexible package.
Purpose
This guide discusses how to install your 24-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch .
Terms/Usage
In this guide, the term “Switch” (first letter upper case) refers to your
24-Port 10/100/1000Mbps Gigabit Ethernet Web Smart Switch, and
“switch” (first letter lower case) refers to other Ethernet switches.
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INTRODUCTION
This chapter describes the features of the 24-Port 10/100/1000Mbps
Gigabit Ethernet Web Smart Switch and some background
information about Ethernet/Fast Ethernet/Gigabit Ethernet switching
technology.
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the
same packet structure, format, and support for CSMA/CD protocol,
full duplex, flow control, and management objects, but with a tenfold
increase in theoretical throughput over 100 -Mbps Fast Ethernet and a
hundredfold increase over 10-Mbps Ethernet. Since it is compatible
with all 10-Mbps and 100-Mbps Ethernet environments, Gigabit
Ethernet provides a straightforward upgrade without wasting a
company’s existing investment in hardware, software, and trained
personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet
is essential to coping with the network bottlenecks that frequently
develop as computers and their busses get faster and more users use
applications that generate more traffic. Upgrading key components,
such as your backbone and servers to Gigabit Ethernet can greatly
improve network response times as well as significantly speed up the
traffic between your subnets.
Gigabit Ethernet enables fast optical fiber connections to support
video conferencing, complex imaging, and similar data-intensive
applications. Likewise, since data transfers occur 10 times faster than
Fast Ethernet, servers outfitted with Gigabit Ethernet NIC’s are able to
perform 10 times the number of operations in the same amount of time.
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In addition, the phenomenal bandwidth delivered by Gigabit Ethernet
is the most cost-effective method to take advantage of today and
tomorrow’s rapidly improving switching and routing internetworking
technologies. And with expected advances in the coming years in
silicon technology and digital signal processing that will enable
Gigabit Ethernet to eventually operate over unshielded twisted-pair
(UTP) cabling, outfitting your network with a powerful 1000-Mbpscapable backbone/server connection creates a flexible foundation for
the next generation of network technology products.
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity of
desktop computing applications are fueling the need for high
performance networks. A number of high-speed LAN technologies
have been proposed to provide greater bandwidth and improve
client/server response times. Among them, 100BASE- T (Fast
Ethernet) provides a non-disruptive, smooth evolution from the
current 10BASE-T technology. The non-disruptive and smooth
evolution nature, and the dominating potential market base, virtually
guarantees cost-effective and high performance Fast Ethernet
solutions.
100Mbps Fast Ethernet 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 the CSMA/CD Ethernet protocol. Since the 100Mbps
Fast Ethernet is compatible with all other 10Mbps Ethernet
environments, it provides a straightforward upgrade and takes
advantage of the existing investment in hardware, software, and
personnel training.
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Switching Technology
Another approach to pushing beyond the limits of Ethernet technology
is the development of switching technology. A switch bridges
Ethernet packets at the MAC address level of the Ethernet protocol
transmitting among connected Ethernet or Fast Ethernet LAN
segments.
Switching is a cost-effective way of increasing the total network
capacity available to users on a local area network. A switch increases
capacity and decreases network loading by dividing a local area
network into different segments, which don’t compete with each other
for network transmission capacity.
The switch acts as a high-speed selective bridge between the
individual segments. The switch, without interfering with any other
segments, automatically forwards traffic that needs to go from one
segment to another. By doing this the total network capacity is
multiplied, while still maintaining the same network cabling and
adapter cards.
Switching LAN technology is a marked improvement over the
previous generation of network bridges, which were characterized by
higher latencies. Routers have also been used to segment local area
networks, but the cost of a router, the setup and maintenance required
make routers relatively impractical. Today switches are an ideal
solution to most kinds of local area network congestion problems.
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VLAN (Virtual Local Area Network)
A VLAN is a group of end-stations that are not constrained by their
physical location and can communicate as if a common broadcast
domain, a LAN. The primary utility of using VLAN is to reduce
latency and need for routers, using faster switching instead. Other
VLAN utility includes:
Security, Security is increased with the reduction of opportunity in
eavesdropping on a broadcast network because data will be switched
to only those confidential users within the VLAN.
Cost Reduction, VLANs can be used to create multiple broadcast
domains, thus eliminating the need of expensive routers.
Port-based (or port-group) VLAN is the common method of
implementing a VLAN, and is the one supplied in the Switch.
Features
u 24×10/100/1000Mbps Auto-negotiation Gigabit Ethernet ports
u All RJ45 ports support auto MDI/MDIX, so there is no need to
use cross-over cables or an up-link port
u Full/half duplex transfer mode for 10/100Mbps port
u Full duplex transfer mode for Gigabit port
u Wire speed reception and transmission
u Store-and-Forward switching scheme capability to support rate
adaptation and ensure data integrity
u Up to 8K unicast addresses entities per device, self-learning, and
table aging
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u 400KBytes packet buffer
u Back pressure flow control for half-duplex
u Supports IEEE 802.3x flow control for full-duplex mode ports
u Supports port-base VLAN
u Supports port-base QoS
u Supports Trunking
u Supports Port-mirroring
u Supports Port-setting for Speed/Disable, Flow control
u Easy configuration via WEB Browser
u Easy setting via Web Management Utility
u Standard 19” Rack-mount size
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