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Wednesday, August 17, 2011

Selecting MPLS VPN Services






Selecting MPLS VPN Services
By Chris Lewis, Steve Pickavance, Monique Morrow, John Monaghan, Craig Huegen
...............................................
Publisher: Cisco Press
Pub Date: February 13, 2006
Print ISBN-10: 1587051915
Print ISBN-13: 978-1-58705-191-3
Pages: 456


A guide to using and defining MPLS VPN services

Analyze strengths and weaknesses of TDM and Layer 2 WAN services
Understand the primary business and technical issues when evaluating IP/MPLS VPN offerings
Describe the IP addressing, routing, load balancing, convergence, and services capabilities of the IP VPN
Develop enterprise quality of service (QoS) policies and implementation guidelines
Achieve scalable support for multicast services
Learn the benefits and drawbacks of various security and encryption mechanisms
Ensure proper use of services and plan for future growth with monitoring and reporting services
Provide remote access, Internet access, and extranet connectivity to the VPN supported intranet
Provide a clear and concise set of steps to plan and execute a network migration from existing ATM/Frame Relay/leased line networks to an IP VPN

IP/MPLS VPNs are compelling for many reasons. For enterprises, they enable right-sourcing of WAN services and yield generous operational cost savings. For service providers, they offer a higher level of service to customers and lower costs for service deployment.

Migration comes with challenges, however. Enterprises must understand key migration issues, what the realistic benefits are, and how to optimize new services. Providers must know what aspects of their services give value to enterprises and how they can provide the best value to customers.

Selecting MPLS VPN Services helps you analyze migration options, anticipate migration issues, and properly deploy IP/MPLS VPNs. Detailed configurations illustrate effective deployment while case studies present available migration options and walk you through the process of selecting the best option for your network. Part I addresses the business case for moving to an IP/MPLS VPN network, with a chapter devoted to the business and technical issues you should review when evaluating IP/MPLS VPN offerings from major providers. Part II includes detailed deployment guidelines for the technologies used in the IP/MPLS VPN.

This book is part of the Networking Technology Series from Cisco Press®, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.


Copyright
About the Authors
Acknowledgments
Icons Used in This Book
Command Syntax Conventions
Introduction
Part I: Business Analysis and Requirements of IP/MPLS VPN
Chapter 1. Assessing Enterprise Legacy WANs and IP/VPN Migration
Current State of Enterprise Networks
Evolutionary Change of Enterprise Networks
Acme, a Global Manufacturer
New WAN Technologies for Consideration by Acme
Convergence Services
Summary
Chapter 2. Assessing Service Provider WAN Offerings
Enterprise/Service Provider Relationship and Interface
Investigation Required in Selecting a Service Provider
Service Management
Summary
Chapter 3. Analyzing Service Requirements
Application/Bandwidth Requirements
Backup and Resiliency
Enterprise Segmentation Requirements
Access Technologies
QoS Requirements
Subscriber Network QoS Design
Security Requirements
Multiprovider Considerations
Extranets
Case Study: Analyzing Service Requirements for Acme, Inc.
Summary
References
Part II: Deployment Guidelines
Chapter 4. IP Routing with IP/MPLS VPNs
Introduction to Routing for the Enterprise MPLS VPN
Site Typifying WAN Access: Impact on Topology
Case Study: BGP and EIGRP Deployment in Acme, Inc.
Summary
References
Chapter 5. Implementing Quality of Service
Introduction to QoS
QoS Tool Chest: Understanding the Mechanisms
Building the Policy Framework
IP/VPN QoS Strategy
Identification of Traffic
QoS Requirements for Voice, Video, and Data
The LAN Edge: L2 Configurations
Case Study: QoS in the Acme, Inc. Network
QoS Reporting
Summary
References
Chapter 6. Multicast in an MPLS VPN
Introduction to Multicast for the Enterprise MPLS VPN
Mechanics of IP Multicast
Multicast Deployment Models
Multicast in an MPLS VPN Environment: Transparency
Case Study: Implementing Multicast over MPLS for Acme
What Happens When There Is No MVPN Support?
Summary
References
Chapter 7. Enterprise Security in an MPLS VPN Environment
Setting the Playing Field
Comparing MPLS VPN Security to Frame Relay Networks
Issues for Enterprises to Resolve When Connecting at Layer 3 to Provider Networks
Basic Security Techniques
Distributed DoS, Botnets, and Worms
Case Study Selections
Summary
References
Chapter 8. MPLS VPN Network Management
The Enterprise: Evaluating Service Provider Management Capabilities
The Enterprise: Managing the VPN
The Service Provider: How to Meet and Exceed Customer Expectations
Summary
References
Chapter 9. Off-Net Access to the VPN
Remote Access
IPsec Access
Supporting Internet Access in IP VPNs
Case Study Selections
Summary
References
Chapter 10. Migration Strategies
Network Planning
Implementation Planning
On-Site Implementation
Case Study Selections
Summary
Part III: Appendix
Appendix A. Questions to Ask Your Provider Regarding Layer 3 IP/MPLS VPN Capability
Coverage and Topology
Customer Edge Router Management
Network Access, Resiliency, and Load Balancing
QoS Capability
Multicast Capability
Routing Protocol Capability
Security
Software Deployment Processes
Inter-Provider IP/VPN
IPv6
MTU Considerations
Hosting Capability
IP Telephony PSTN Integration
IP Telephony Hosted Call Agent
Remote and Dial Access
Internet Access
Other Network Services
Index


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