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Chapter 3: Network Planning
3. Network Planning
3.1 Introduction to Switching
A network switch allows simultaneous transmission of multiple packets; it can partition a network more efficiently than bridges
or routers. The switch is one of the most important devices for today’s networking technology.
When performance bottlenecks are caused by congestion at the network access point such as file server, the device can be
connected directly to a switched port. Using full-duplex mode doubles the bandwidth of the dedicated segment to maximize
throughput.
When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count.
A switch subdivides the network into smaller and more manageable segments, and links them to the larger network. Then, it
turns the hop count back to zero and removes the limitation.
You can easily configure a switch in any Ethernet, Fast Ethernet, or Gigabit Ethernet network to significantly increase bandwidth
while using conventional cabling and network cards.
3.2 Application Examples
The Gigabit Managed PoE+ Switch has 10, 24, or 48 Gigabit Ethernet TP ports with auto MDI-X and two combo RJ-45/SFP ports
or four 1G/10G SFP slots for a removable SFP module.
The SFP module (ordered separately) connects many different types of fiber modules, such as LC and BiDi-LC modules.
The SFP module segments your network, and also provides a wide range of options in setting up network connections. Typical
applications are described below.
The switch is suitable for the following applications.
• Remote site application for Enterprise or SMB.
• Peer-to-peer application for two remote offices.
• Office network.
• High-performance requirements environment.
• Advanced security for network safety applications.
• Data/ voice and video conference applications.
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