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MPLS and VPN Architectures, CCIP™ Edition by Jim CCIE #2069 Guichard, Ivan CCIE #1354 Pepelnjak

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Chapter 15. Carrier's Carrier and Inter-provider VPN Solutions

This chapter includes the following topics:

The description of the MPLS/VPN architecture so far has assumed that all VPN customer sites are connected to a single service provider backbone across PE-to-CE links, and that the exchange of routing information across these links occurs without the need of MPLS, and without any direct exchange of routing information between customer sites. Also highlighted is the fact that a customer may choose to use the MPLS/VPN service to connect sites because this provides a more scalable way of providing VPN connectivity ...

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