October 2012
Intermediate to advanced
419 pages
10h 47m
English
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Chapter 15. Routing
Dynamic routing in a data center switch is not something I normally see done outside the core switches in a data center, and even then I prefer to move it out to edge devices and let the switching architecture focus on fast movement of packets at layer-2. Still, customers sometimes demand dynamic routing on their switches, and who am I to deny them (after recommending alternatives in writing)?
I’ll warn you up front that there are few (if any) fantastic discoveries awaiting you in this chapter. IP routing is not really a core requirement of data center switching, and the protocols supported all function the way you’d expect them too. IP routing is a pretty mature technology, with most protocols having a maturity measuring in decades. If there’s one thing to understand from this chapter, it’s that the protocols work the same way they do on any other device that supports them according to the RFCs.
Arista switches support only open routing protocols. In other words, protocols that aren’t proprietary and that don’t require a certain vendor’s equipment, or licensing, or certifications. In short, Arista supports BGP (v2 and v3), OSPF (v2 and v3), PIM-SM, and RIPv2.
Note
EOS version 4.10 or later is required for OSPFv3 and BGPv4.
I won’t be explaining how these protocols work in this chapter. That job has already been done by other books in dizzying detail. Instead, I’m going to show you how to configure your Arista switch to connect to each protocol. I’ll be keeping it ...
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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.