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Alright, let's go ahead and review these questions together.

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We have this scenario where we've got to put together some information on SDA,

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which means

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we better know a little bit of how this architecture comes together.

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So the first question is simply what type of architecture is Cisco SDA, and the

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answer

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here is going to be that it's an access layer fabric.

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It's not layer two or layer three, it's actually kind of both.

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Now we're definitely not just organically connecting one switch to another, and

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so it

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is definitely a fabric.

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Which two controllers are used in SDA.
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Which two controllers are used in SDA.

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All of these are valid Cisco products, but we're going to use Catalyst Center,

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which

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yeah, used to be known as DNA Center, and the Identity Services Engine, which

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is ICE.

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ICE is going to provide the security framework, leveraging Cisco TrustSec for

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the enforcement

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of that policy.

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DNA Center is going to give us the automation and the management over the

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fabric.

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These other products, VManage, SD-WAN related, APIC is ACI related, both SD-N

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products by

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Cisco, but not SDA related and prime infrastructure at this point is a pretty
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Cisco, but not SDA related and prime infrastructure at this point is a pretty

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legacy product.

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Access layer switches will be deployed as which type of SDA node.

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So remember we've got these three different types.

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We do have wireless integration, but keep in mind we're talking about fabric

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borders,

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fabric control plane nodes, and fabric edge nodes.

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And we're talking about the access layer switches themselves.

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They will be fabric edge nodes.

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They exist at the edge of the network and they're going to be forming VXLan

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tunnels with

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one another and sending traffic across the underlay, which is the layer three
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one another and sending traffic across the underlay, which is the layer three

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network that

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we build for our fabric.

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So lastly, which plane of operation will each of these protocols be used in?

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So we're talking about finding out, okay, so as CTS is, this is Cisco TrustSec

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at which

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plane of operation is this operating.

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We are going to run CTS at the policy plane.

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This is probably the most unique element of this conversation because the

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policy plane

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is not something we're used to talking about.
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is not something we're used to talking about.

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From SDA perspective, it's a very important part of it because Cisco wants

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security to

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be foundational to this product and this platform.

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We talked about that earlier.

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Security can't just be layered on anymore in modern network.

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Everything has to be built with security in mind.

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So that's why we have a policy plane to begin with to enforce our security

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policies.

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We also have a data plane in mind.

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Whoops, let's click down here for a VXLan.
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Whoops, let's click down here for a VXLan.

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So we have a data plane that would be VXLan.

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We're going to send our traffic through VXLan tunnels at the data plane if I

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receive a packet

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that is destined for a remote something in the network, probably a remote host

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connected

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to a different fabric edge node, then I'm going to insert it into a VXLan

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tunnel and

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forward it as part of the data plane.

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And the control plane is how I find out where I'm sending it.

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And we do use Lisp at the control plane in order to find out where I should be

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sending

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that traffic.

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So all of these questions are intended to make sure that we understand the
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So all of these questions are intended to make sure that we understand the

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fabric, how

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the fabric comes together, and a little bit about the architecture that Cisco

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uses to

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build their SDA product, which is going to give us that fabric and SDA based

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network that

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goes out to our access layer.

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I hope there's been informative for you and I'd like to thank you for viewing.
