December 2007
Intermediate to advanced
432 pages
9h 36m
English
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Chapter . WAN Network Design
Moving Traffic Across the Street and the World
How does a company connect the network in its New York office to the network in its Los Angeles office? It doesn’t make sense to run a private cable across the U.S. Instead, the company subscribes to wide-area services. A wide-area network (WAN) is a network that covers a broad geographic area and often uses transmission facilities provided by service providers. WAN functionality occurs at Layers 1 to 3 in the Open Systems Interconnection (OSI) reference model.
The bicoastal company just mentioned would contact its service provider to purchase WAN connectivity between the offices. WAN services are leased from service providers that charge either a monthly flat fee or fees ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.