Lisp Support For Disjointed Rloc Domains; Overview Of Lisp Support For Disjointed Rloc Domains; Prerequisites For Lisp Support For Disjointed Rloc Domains; Information About Lisp Support For Disjointed Rloc Domains - Cisco Nexus 7000 Series Configuration Manual

LISP Support for Disjointed RLOC Domains

This chapter contains the following sections:
•
LISP Support for Disjointed RLOC Domains

Overview of LISP Support for Disjointed RLOC Domains

Locator/ID Separation Protocol (LISP) implements a level of indirection that enables a new IP routing
architecture. LISP separates IP addresses into two address spaces, Endpoint Identifiers (EIDs), which are
assigned to end hosts, and Routing Locators (RLOCs), which are assigned to devices that make up the global
routing system.
This feature enables communication between LISP sites that are connected to different RLOC spaces and
have no connectivity to each other.

Prerequisites for LISP Support for Disjointed RLOC Domains

• You understand how LISP works, including infrastructure, workflow, roles and functions.

Information About LISP Support for Disjointed RLOC Domains

The fundamental principle of any network is that routing and reachability should exist between all devices
that make up the total network system. There are many network systems, public and private, for which
internetwork connectivity is not directly available.
• A Multiprotocol Label Switching (MPLS) IPv4 VPN from service provider A and an MPLS IPv4 VPN
• An MPLS IPv4 VPN from service provider A and IPv4 internet.
When some sites within a network connect to one routing domain and other sites connect to another routing
domain, a gateway function must be provided to facilitate connectivity between these disjointed routing
domains. In traditional routing architectures, providing connectivity between disjointed routing domains can
be quite complex.
The inherent property of LISP, which separates IP addresses into two address spaces, gives it the ability to
connect disjointed RLOC domains through simplified configuration mechanisms. The key components are
LISP Support for Disjointed RLOC Domains, on page 93
from service provider B, with different scopes, 10.1.0.0/16 and 10.2.0.0/16.
C H A P T E R
Cisco Nexus 7000 Series NX-OS LISP Configuration Guide
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