October 2012
Intermediate to advanced
419 pages
10h 47m
English
Content preview from Arista WarriorBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Chapter 11. Python
In this chapter, I’ll show you how Python was used to create much of what you see when using the CLI, and then I’ll show you how to mess with it. Think about that for a minute; not only is EOS designed from the ground up to be extensible, but Arista has also given us the ability to alter the way in which the switch behaves. As far as I’m aware, this is unprecedented in the realm of networking devices. Sure, other devices are based on Linux, but you can’t get to it, and you certainly can’t change anything outside of the typical user-configurable options.
When I visited Arista for the first time, I asked Ken Duda (Founder, Chief Technology Officer, and Senior Vice President of Software Engineering) if they worried about end users rendering their switches inoperable by messing with stuff they didn’t understand. His answer, and I’m paraphrasing here, was that Arista believed in the open source concept so strongly that they encouraged users to make new and exciting solutions based on their products. When I asked what would happen if I managed to Python my switch into a useless pile of network-crushing slag, I was told that Arista would try to help, but that since I had fundamentally altered the intended function of the switch, that my support would be on a best effort case. Again, I’m paraphrasing; I don’t think the word slag was ever uttered during that conversation.
I’ve been in the IT industry for roughly 385 years (since 1984). In all that time, I’ve learned appropriate ...
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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.