March 2009
Beginner to intermediate
144 pages
3h 13m
English
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Propagation of BGP Updates
Now that you know enough about BGP to be dangerous, you should know that BGP announcements may take up to 20 minutes to be visible throughout the world. Although your peers should pick them up quickly, you can't expect that everybody everywhere is so well connected to you. After changing your BGP setup, wait at least 20 minutes to see what the real effects are before making another change. This will also help reduce the risk of being marked as a flapping BGP source and blackholing yourself off the Internet.
If you want to see how your BGP announcements are being viewed by the outside world, search the Internet for a "BGP Looking Glass." These are web pages that allow you to query routers for BGP information. By asking ...
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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.