MPLS for Metropolitan Area Networks: 1st Edition (Hardback) book cover

MPLS for Metropolitan Area Networks

1st Edition

By Nam-Kee Tan

Auerbach Publications

448 pages | 121 B/W Illus.

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Hardback: 9780849322129
pub: 2004-11-15
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Description

Metro Service Providers are increasingly turning to Multi-Protocol Label Switching (MPLS) to converge disparate networks and services into a unified core, maintain quality, and deliver additional value-added capabilities. MPLS for Metropolitan Area Networks addresses service providers' challenges by demonstrating solutions provided by MPLS features such as traffic engineering (TE), fast reroute, VPNs, virtual private LAN services (VPLS), and QoS.

The text opens with an overview of metro networks and MPLS, describing business opportunities and challenges and how mission-critical applications can be deployed within Metropolitan Area Networks (MANs). It then examines traffic engineering issues, focusing on fundamental TE concepts, network control, trunk attributes, constraint-based routing (CBR), Resource Reservation Protocol with TE extensions (RSVP-TE), and resource optimization.

Following a discussion on how MPLS can bring increased reliability to MANs, the author then concludes the book with a detailed analysis of the service aspect of MANs. Topics reviewed include L3 and L2 MPLS VPNs, geographically dispersed Ethernet multipoint services, virtual private LAN services (VPLS), and the integrated services (IntServ) and differentiated services (DiffServ) QoS models with respect to MPLS.

The entire book adopts a simplify-and-exemplify approach, containing a series of real-life case studies and using representative topologies as a basis for illustrating the concepts discussed in each chapter. This learning-by-example approach helps you to remember and understand the complex MPLS concepts and technologies. You can then apply what you have learned from these examples and scenarios to your specific networking environments.

Table of Contents

METROPOLITAN AREA NETWORKS AND MPLS

Requirements of Metropolitan Area Network Services

Metropolitan Area Network Overview

The Bandwidth Demand

The Metro Service Provider's Business Approaches

The Emerging Metro Customer Expectations and Needs

Some Prevailing Metro Service Opportunities

Service Aspects and Requirements

Roles of MPLS in Metropolitan Area Networks

MPLS Primer

MPLS Applications

TRAFFIC ENGINEERING ASPECTS OF METROPOLITAN AREA NETWORKS

Traffic Engineering Concepts

Network Congestion

Hyper Aggregation Problem

Easing Congestion

Network Control

Tactical versus Strategic Traffic Engineering

IP/ATM Overlay Model

MPLS and Traffic Engineering

MPLS Traffic Engineering Tasks

Functions of Trunk Attributes

Traffic Parameters

Policing Attributes

Priority Attributes

Preemption Attributes

Resilience Attributes

Generic Path Selection Attributes

Dynamic Path Management Parameters

Basic Operations of Traffic Trunks

Constraint-Based Routing

MPLS Traffic Engineering Operation

Limitations of Traditional IGPs

Resource Attributes

OSPF Traffic Engineering

ISIS Traffic Engineering

Constraint-Based Routing Operation

Resource Reservation Protocol and Traffic Engineering

Terminology

Evolution of RSVP

RSVP-TE Messages and Objects

RSVP-TE Path Setup Operation

Admission Control and Preemption

Forwarding Traffic across an LSP Tunnel

Re-optimization and Rerouting

Scaling RSVP

Traffic Engineering Metro Area Networks

Background Information

Case Study 7.1: Hop-by-Hop Routed LSPs

Case Study 7.2: Explicitly Routed LSPs (Loose Explicit Route Example)

Case Study 7.3: Bandwidth Manipulation (CBR Example 1)

Case Study 7.4: Link Affinity (CBR Example 2)

RELIABILITY ASPECT OF METROPOLITAN AREA NETWORKS

Reliability in MPLS Based Metropolitan Area Networks

Terminology

Failure Protection Types

RSVP Extensions for Local Repair

Head-End Behavior

Point of Local Repair Behavior

Notification of Local Repair

Case Study 8.1: Path Protection

Case Study 8.2: Fast Reroute with Detour LSPs

SERVICE ASPECT OF METROPOLITAN AREA NETWORKS

Layer-3 and Layer-2 MPLS VPNs

L3 MPLS VPN Overview

Architectural Components of L3 MPLS VPN

L3 MPLS VPN Operation

L2 MPLS VPN Overview

Martini Point-to-Point Tunneling Approach

Case Study 9.1: L3 MPLS VPNs with Static Routes and OSPF

Case Study 9.2: L3 MPLS VPNs with RIPv2 and EBGP

OSPF and L3 MPLS VPN

Case Study 9.3: Deploying OSPF on Customer Side without Area 0 (Using Cisco Routers)

Virtual Private LAN Services

Multipoint L2 VPN Service

Service Offerings

Functional Components of VPLS

Frame Forwarding

VPLS versus Martini Point-to-Point L2 VPN Service

VPLS Implementation

Scaling LDP-Based VPLS

Comparison between VPLS and L3 MPLS VPN

Case Study 10.1: Virtual Leased Line Service

Case Study 10.2: Virtual Private LAN Services

QUALITY OF SERVICE ASPECT OF METROPOLITAN AREA NETWORKS

QoS and MPLS

The Need for Different Service Classes

Terminology

QoS Models for MPLS

DiffServ and MPLS

DiffServ-Aware MPLS-TE

Per-VPN QoS Service Models

Case Study 11.1: QoS and L2 MPLS VPN

Case Study 11.2: QoS and L3 MPLS VPN

Subject Categories

BISAC Subject Codes/Headings:
COM043000
COMPUTERS / Networking / General
TEC041000
TECHNOLOGY & ENGINEERING / Telecommunications