Table of Contents

About This Guide

Objectives

Audience

Supported Routing Platforms

Using the Index

Using the Examples in This Manual

Document Conventions

List of Technical Publications

Documentation Feedback

Requesting Technical Support

Investigating Fast Reroute in an MPLS Network

MPLS FRR Protection Introduction

MPLS FRR Protection Overview

MPLS Protection Background

Path Protection in an MPLS Network

Checklist for Path Protection

Path Protection Overview

Configuring and Verifying a Primary Path

Configure a Primary Path

Verify That the Primary Path Is Operational

Configuring and Verifying a Secondary Path

Configure a Standby Secondary Path

Verify That the Secondary Path Is Established

Ensuring That Secondary Paths Establish When Resources Are Diminished

Preventing Use of a Path That Previously Failed

Local Protection in an MPLS Network

Local Protection Checklist

Local Protection Overview

One-to-One Backup Overview

Configuring and Verifying One-to-One Backup

Configure One-to-One Backup

Verify One-to-One Backup

Many-to-One Link Protection (Facility Backup) Overview

Configuring and Verifying Link Protection

Configure Link Protection

Verify That Link Protection Is Up

Node-Link Protection Overview

Configuring and Verifying Node-Link Protection

Configure Node-Link Protection

Verify That Node-Link Protection Is Up

RSVP Reservation Styles in an MPLS Network

Checklist for RSVP Reservation Styles

RSVP Reservation Styles Overview

Fixed Filter Style Overview

Shared Explicit Style Overview

Configuring and Verifying an Adaptive LSP

Rerouting the LSP Tunnel for the SE Reservation Style

Establish the Initial LSP Tunnel

Reroute an LSP Tunnel

Load Balancing in an MPLS Network

Checklist for Load Balancing in an MPLS Network

Load Balancing Overview

Configuring and Verifying Load Balancing

Define a Load-Balancing Policy

Apply the Load-Balancing Policy to the Forwarding Table

Verify That Load Balancing Is Working

Example: Load-Balanced MPLS Network

Router Configurations for the Load-Balanced MPLS Network

Using Hash-Key Load Balancing for LSP Traffic

Configuring MPLS Labels and IP Payload to Load-Balance LSP Traffic

Configuring the IPv4 Address Family to Load-Balance LSP Traffic

Hash Key Network Examples

Example: Load-Balancing a Network with Aggregated Interfaces

Verifying the Operation of Load Balancing with Aggregated Interfaces

Router Configurations for the Aggregated Interfaces Network

Example: Load-Balancing a Network Using INET in the Hash Key

Verifying the Operation of INET Load Balancing

Router Configurations for the INET Load-Balanced Network

Using Bandwidth to Unevenly Load-Balance RSVP LSPs

Configure Bandwidth to Unevenly Load-Balance Traffic

Verify the Operation of Uneven Bandwidth Load Balancing

Router Configurations for Bandwidth Load Balancing

Traffic Flows Before Load Balancing

Case Studies

Troubleshooting Fast Reroute

Troubleshooting Fast Reroute Checklist

Fast Reroute Problem Overview

Troubleshooting Link Protection for Multiple Bypass LSPs Overview

Troubleshooting Link Protection for Multiple Bypass LSPs Checklist

Troubleshooting Link Protection for Multiple Bypass LSPs

Admission Control Errors When Fast Reroute is Configured

Admission Control Errors When Fast Reroute is Configured

Troubleshooting Fast Reroute Admission Control Errors Overview

Problem Establishing a GMPLS LSP

Problem Establishing a GRE Tunnel Checklist

Troubleshooting GMPLS and GRE Tunnel

Index

Index