Configuring Locator Id Separation Protocol; Information About Locator/Id Separation Protocol; Information About Lisp - Cisco Nexus 7000 Series Configuration Manual

Configuring Locator ID Separation Protocol

This chapter describes how to configure the basic Cisco NX-OS Locator/ID Separation Protocol (LISP)
functionality on all LISP-related devices, including the Ingress Tunnel Router (ITR), Egress Tunnel Router,
Proxy ITR (PITR), Proxy ETR (PETR), Map Resolver (MR), Map Server (MS), and LISP-ALT device.
This chapter contains the following sections:
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Information About Locator/ID Separation Protocol

The Locator/ID Separation Protocol (LISP) network architecture and protocol implements a new semantic
for IP addressing by creating two new namespaces: Endpoint Identifiers (EIDs), which are assigned to end
hosts, and Routing Locators (RLOCs), which are assigned to devices (primarily routers) that make up the
global routing system. Splitting EID and RLOC functions improves routing system scalability, multihoming
efficiency, and ingress traffic engineering. LISP end site support is configured on devices such as Cisco
routers.

Information About LISP

In the current Internet routing and addressing architecture, the IP address is used as a single namespace that
simultaneously expresses two functions about a device: its identity and how it is attached to the network. One
very visible and detrimental result of this single namespace is demonstrated by the rapid growth of the Internet's
default-free zone (DFZ) as a consequence of multi-homing, traffic engineering (TE), nonaggregatable address
allocations, and business events such as mergers and acquisitions.
Information About Locator/ID Separation Protocol, on page 3
Information About LISP, on page 3
LISP Devices Overview, on page 4
Licensing Requirements for LISP, on page 6
LISP Guidelines and Limitations, on page 6
Default Settings for LISP, on page 6
Configuring Locator/ID Separation Protocol, on page 7
Additional References, on page 16
Feature History for LISP, on page 17
C H A P T E R
Cisco Nexus 7000 Series NX-OS LISP Configuration Guide
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