Whether you're in an enterprise network or service provider environment, MPLS and Label-Switching Networks, Second Edition is the authoritative resource you need to understand MPLS technologies -- and implement them for competitive advantage. Writing specifically for network and communications professionals, renowned communication specialist Uyless Black illuminates the final MPLS standard through practical examples and realistic configuration diagrams. Black introduces every fundamental concept and protocol, explaining how MPLS works and how it can be applied in both IPv4 and IPv6 environments. This book's in-depth QoS coverage shows how to use MPLS to combat network latency and jitter; how to build more resilient service provider and ISP backbones; and how to configure networks for rapid service restoration. Black also presents in-depth coverage of MPLS-based VPNs, including security issues. Black introduces the new Generalized MPLS (GMPLS) protocol for optical networking, which extends MPLS to time, wavelength, and space-based switching domains. He also introduces Resource Reservation Protocol for Traffic Engineering (RSVP-TE), showing how to use it to maximize network reliability and utilization.