MPLS CsC Overview

Introduction

MPLS Carrier Supporting Carrier is an architecture where carrier's customer is another MPLS carrier and uses the Core MPLS network for to extend their MPLS network.

MPLS CsC

  • Carriers-Carrier is only used to carry the loopback address of Carrier-Customers external next-hops prefixes. It provides connectivity for the Carrier-Customers' PE routes to establish BGP VPN sessions.
  • The interconnection between customer carrier uses a similar configuration as Inter-AS Option C. For details see MPLS Inter-AS Option C.

Additional Resources

Carrier Supporting Carrier - Darren's Blog(Dual CCIE #38070 (R&S, SP) and JNCIE-SP #2227)

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