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INTRODUCTION
This chapter will describe the features of the DES-1228 and provide
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, and management objects, but with a tenfold increase in
theoretical throughput of 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 existing
investments in hardware, software, or trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet
is essential to help solving network bottlenecks that frequently
develop as more advanced computer users and newer applications
continue to demand greater network resources. Upgrading key
components, such as backbone connections and servers to Gigabit
Ethernet technology can greatly improve network response times as
well as significantly speed up the traffic between 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.