GNS3 Topology: MPLS Carrier Supporting Carrier Configuration

"Carrier supporting carrier is a term used to describe a situation where one service provider allows another service provider to use a segment of its backbone network. The service provider that provides the segment of the backbone network to the other provider is called the backbone carrier. The service provider that uses the segment of the backbone network is called the customer carrier. A backbone carrier offers Border Gateway Protocol and Multiprotocol Label Switching (BGP/MPLS) VPN services.

The customer carrier can be either:
• An Internet service provider (ISP)
• A BGP/MPLS VPN service provider"

PART 1 (backbone carrier configuration)



PART 2 (Customer Carrier configuration, Customer Carrier isn't running MPLS)



PART 3 (Customer Carrier running MPLS and Customer Carrier providing MPLS VPN service.)






"Lobo L, Lakshman U, 2005, MPLS Configuration on Cisco IOS Software, Cisco Press"

Cisco IOS MPLS Configuration Guide Release 12.4T, 2005, MPLS VPN Carrier Supporting Carrier Using LDP and an IGP,retrieved from http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/12_4t/mp_12_4t_book.html , jan 2011