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nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

Nexus Switching 2nd Edition

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ip route 10.1.64.128/25 Null0 250<br />

router eigrp 1<br />

router-id 10.0.0.251<br />

redistribute static route-map redist-otv-subnets<br />

Finally, LISP is a new routing architecture that creates a new paradigm by splitting the<br />

device identity, known as an Endpoint Identifier (EID), <strong>and</strong> its location, known as its<br />

Routing Locator (RLOC), into two different numbering spaces. This capability brings<br />

renewed scale <strong>and</strong> flexibility to the network in a single protocol, enabling the areas of<br />

mobility, scalability, <strong>and</strong> security. It provides end-to-end path optimization in an OTV<br />

environment, without any of the sacrifices of RHI or Null Aggregation.<br />

Specifically for enterprises leveraging OTV, LISP provides several key benefits, including<br />

simplified Layer 2 extension with ingress Traffic Engineering (TE) capabilities <strong>and</strong> IP<br />

Mobility for geographically disperses data centers <strong>and</strong> Disaster Recovery (DR). LISP is<br />

covered in great detail in Chapter 13.<br />

Summary<br />

This chapter discussed how you can deploy OTV to provide multipoint Layer 2 LAN<br />

extension between data centers. It also discussed the deployment options <strong>and</strong> recommended<br />

topologies.<br />

OTV can extend Layer 2 networks over any IP-enabled network <strong>and</strong> provide ease of<br />

configuration <strong>and</strong> deployment, multihoming, optimal multicast replication, <strong>and</strong> HSRP<br />

localization. OTV also can preserve Layer 3 boundaries <strong>and</strong> site scale.

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