Cisco ASR 5500 System Administration Guide

CHAPTER 22
BGP MPLS VPNs
This chapter describes services that are supported for Border Gateway Protocol (BGP) Multi-Protocol Label
Switching (MPLS) Virtual Private Networks (VPNs).
MPLS is a licensed Cisco feature that requires a separate license. Contact your Cisco account representative
for detailed information on specific licensing requirements. For information on installing and verifying
licenses, refer to the Managing License Keys section of Software Management Operations.
Important
It includes the following topics:
•
Introduction, page 241
•
MPLS-CE Connected to PE, page 242
•
as a PE, page 242
•
IPv6 Support for BGP MPLS VPNs, page 244
•
VPN-Related CLI Commands , page 246
Introduction
Service providers require the ability to support a large number of corporate Access Point Names (APNs)
which have a number of different addressing models and requirements. uses BGP MPLS Layer 3 VPNs to
segregate corporate customer APNs in a highly scalable manner. This solution conforms to RFC 4364 –
BGP/MPLS IP Virtual Private Networks (VPNs).
The BGP/MPLS solution supports the following scenarios:
•
MPLS-CE Connected to PE, on page 242
•
as a PE, on page 242
also supports VPNv6 as described in RFC 4659 – BGP-MPLS IP Virtual Private Network (VPN) Extension
for IPv6 VPN. See IPv6 Support for BGP MPLS VPNs, on page 244 for details.
ASR 5500 System Administration Guide, StarOS Release 21.5
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Cisco ASR 5500 Specifications

General

Brand	Cisco
Model	ASR 5500
Category	Network Router
Language	English