Gigabit Ethernet Technology; 802.1P And Qos - D-Link DGS-1016D Manual

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 necessary to coping with the network bottlenecks; more
computers and their bus speeds getting faster, and more
applications generate more traffic in the network. 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 supports 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.

802.1p and QoS

The DGS-1024D and DGS-1016D Switches support 802.1p priority
queuing Quality of Service. The implementation of QoS (Quality of
Service) and benefits of using 802.1p priority queuing are described
here.
Advantages of QoS
QoS is an implementation of the IEEE 802.1p standard that allows
network administrators a method of reserving bandwidth for
important functions that require a large bandwidth or have a high
priority, such as VoIP (voice-over Internet Protocol), web browsing
applications, file server applications or video conferencing. Not only
3