NANOG Abstract

Abstract: Methods of Interconnecting MPLS Networks

Udo Steinegger, Cable & Wireless

This talk reviews several possible architectures for service provider MPLS network interconnections, including:

Back-to-back VRFs
EBGP redistribution of labeled VPN IPv4 routes between SP ASes
Multihop EBGP redistribution of labeled IPv4 Routes between SP ASes

We then discuss the advantages and caveats of each architecture; the method CW has selected, with a consideration of Carrier Supporting Carrier (CSC) and OAM; and a summary of futures, i.e., current actions at IETF.

About the Presenter
Udo Steinegger has been working in the Cable & Wireless IP Engineering Group since 2000. He is responsible for designing parts of C&W's public IP network and portions of its MPLS VPN network. Udo's interests focus on MPLS-based technologies (L2/L3 VPNs, interconnections, QoS, etc.), and extending/operating C&W's IXP (INXS). Prior to working for Cable & Wireless, Udo worked for a small local telco in southern Germany, and previously studied computer science.

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