Cisco 10700 Uživatelská příručka stáhnout pdf (Strana 503)

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CHAPTER

16-1

Cisco 12000/10700 v3.1.1 Router Manager User Guide

OL-4455-01

MPLS VRF Management

This chapter describes the various MPLS VRF Management tasks that can be performed using the

Cisco 12000/10720 Router Manager application. This chapter is divided into the following main

sections:

• Introduction to VRF Management

• VRF Management Workflows

• Launching the MPLS VRF Management Windows

• Creating VRF Objects in the EM

• Creating and Configuring the VRF Policy on a Device

• Associating a VRF Policy with an Interface

• VRF Fault Management

Introduction to VRF Management

VPN Routing and Forwarding (VRF) is an IOS route table instance for connecting a set of sites to a VPN

service. A VRF contains a template of VPN Routing/Forwarding table in a PE router.

The overlapping addresses, usually resulting from usage of private IP addresses in customer networks,

are one of the major obstacles to successful deployment of peer-to-peer VPN implementation. The

MPLS/VPN technology provides an elegant solution to dilemma.

Each VPN has its own routing and forwarding table in the router, so any customer or site that belongs to

a VPN is provided access only to the set of routes contained within that table. Any PE router in the

MPLS/VPN network therefore contains a number of per-VPN routing tables and a global routing table,

that is used to reach other routers in the provider network. Effectively, a number of virtual routers are

created in a single physical router.

VRF Manager provides an encapsulation for the VRF template as EM Object Model for better

manageability and user friendly Graphical User Interface (GUI).

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