Introduction; Fast Ethernet Technology; Gigabit Ethernet Technology; Switching Technology - D-Link DES-3350SR User Manual

Introduction

Fast Ethernet Technology

Gigabit Ethernet Technology

Switch Stacking

Performance Features

Ports
This section describes the functionality features of the DES-3350SR.
Fast Ethernet Technology
100Mbps Fast Ethernet (or 100BASE-T) 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 Carrier Sense Multiple
Access with Collision Detection (CSMA/CD) Ethernet protocol.
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for full duplex and
management objects, but with a tenfold increase in theoretical throughput over 100Mbps Fast Ethernet and a one hundred-fold
increase over 10Mbps Ethernet. Since it is compatible with all 10Mbps and 100Mbps Ethernet environments, Gigabit Ethernet
provides a straightforward upgrade without wasting a company's existing investment in hardware, software, and trained personnel.

Switching Technology

Another key development pushing the limits of Ethernet technology is in the field 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 making it possible for a local area network to be divided into different
segments, which are not competing with each other for network transmission capacity, and therefore decreasing the load on each
segment.
The Switch acts as a high-speed selective bridge between the individual segments. Traffic that needs to go from one segment to
another (from one port to another) is automatically forwarded by the Switch, without interfering with any other segments (ports).
This allows the total network capacity to be multiplied, while still maintaining the same network cabling and adapter cards.
For Fast Ethernet or Gigabit Ethernet networks, a switch is an effective way of eliminating problems of chaining hubs beyond the
"two-repeater limit." A switch can be used to split parts of the network into different collision domains, for example, making it
possible to expand your Fast Ethernet network beyond the 205-meter network diameter limit for 100BASE-TX networks. Switches
supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps
networks and new 100Mbps networks.
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 and the setup and
maintenance required make routers relatively impractical. Today's switches are an ideal solution to most kinds of local area
network congestion problems.
Performance Features
Switch performance features include:
•
64 Byte system packet forwarding rate (up to 10.1 million packets per second)
•
Full-wire speed (full-duplex) operation on all ports including Gigabit ports.
•
4 Priority Queues per port
•
MAC Address Table supports 8K MAC addresses
•
IP Address Table supports 2K IP entries
•
Packet Buffer Memory supports 64 M bytes buffer memory per device
D-Link DES-3350SR Standalone Layer 3 Switch
Section 1
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