SMC Networks VDSL2 Chapter Network Planning, Introduction to Switching, Application Examples

CHAPTER 2

NETWORK PLANNING

Introduction to Switching

A network switch allows simultaneous transmission of multiple packets via non-crossbar switching. This means that it can partition a network more efficiently than bridges or routers. The switch has, therefore, been recognized as one of the most important building blocks for today’s networking technology.

When performance bottlenecks are caused by congestion at the network access point (such as the network card for a high-volume file server), the device experiencing congestion (server or power user) can be attached directly to a switched port. And, by using full-duplex mode, the bandwidth to the end-user can be doubled to maximize throughput.

A switch can be easily configured in any Ethernet network to significantly boost bandwidth while using conventional cabling and network cards.

Application Examples

VDSL provides significant savings on network installation, equipment and service fees. Internet services operate over existing phone cabling and a minimal amount of network equipment. The only changes require installing a VDSL CPE for each client, and a VDSL switch in the basement or wiring closet. Internet service can then be provided over a direct Ethernet connection from your ISP. For non-commercial environments, you can run the switch through a broadband router at the customer’s site. This will allow you to use a single-user account and ISP sharing to significantly reduce network access charges.

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