July 2002
Intermediate to advanced
608 pages
14h 52m
English
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The Need for Fast Reroute
Network administrators have been dealing with link and node failures for as long as there have been networks. It has traditionally fallen to the Interior Gateway Protocol (IGP) to quickly route around failures, converging on the remaining topology. However, there are a few things the IGP doesn't do that well when it comes to convergence:
In a large network, your IGP can take quite a few seconds to converge; until the entire network is converged, there is packet loss. It's not uncommon to see 5 to 10 seconds of packet loss when a core link flaps in a large network.
A link failure can lead to congestion in some parts of the network while leaving other parts free of congestion.
Configuring the IGP to converge quickly can ...
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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.