Introduction

Since our first MPLS book (MPLS and VPN Architectures) was published by Cisco Press a few years ago, MPLS has matured from a hot leading-edge technology—supporting Internet services and leased-line–based VPN solution—to a set of solutions that are successfully deployed in large-scale service provider networks worldwide. A number of additional solutions had to be developed to support the needs of these networks, and many additional IOS services were made VPN-aware to enable the service providers to deploy the services they were already offering within the new architectural framework. Therefore, it was a natural step to continue on the path we charted with the first book and describe the enhancements made to MPLS architecture or its ...

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