Configuring BGP on Cisco Routers (BGP v 3.2)

Course Objectives

• Configure, monitor, and troubleshoot basic BGP to enable inter-domain routing in a network scenario with multiple domains
• Use BGP policy controls to influence the route selection process with minimal impact on BGP route processing in a network scenario where you must support connections to multiple ISPs
• Use BGP attributes to influence the route selection process in a network scenario where you must support multiple connections
• Implement the correct BGP configuration to successfully connect the customer network to the Internet in a network scenario where you must support multiple connections
• Enable the provider network to behave as a transit autonomous system in a typical service provider network with multiple BGP connections to other autonomous systems
• Identify common BGP scaling issues and enable route reflection and confederations as possible solutions to these issues in a typical service provider network with multiple BGP connections to other autonomous systems.

Course outline

Module 1 – BGP Overview

• Introducing BGP
• Establishing BGP Sessions
• Understanding BGP Path Attributes
• Processing BGP Routes
• Configuring Basic BGP
• Monitoring and Troubleshooting BGP

Module 2 – BGP Transit Autonomous Systems

• Working with a Transit AS
• Interacting with IBGP and EBGP in a Transit AS
• Forwarding Packets in a Transit AS
• Configuring a Transit AS
• Monitoring and Troubleshooting IBGP in a Transit AS

Module 3 – Route Selection using Policy Controls

• Using Multi-homed BGP Networks
• Employing AS – Path Filters
• Filtering with Prefix-Lists
• Using Outbound Route Filtering
• Applying Route-Maps as BGP Filters
• Implementing Changes in BGP Policy

 
Module 4 – Route Selection Using Attributes

• Influencing BGP Route Selection with Weights
• Setting BGP Local Preference
• Using AS-Path Prepending
• Understanding the BGP Multi-Exit Discriminator
• Addressing BGP Communities 

Module 5- Customer-to-Provider Connectivity with BGP

• Understanding Customer-to-Provider Connectivity Requirements
• Implementing Customer Connectivity Using Static Routing
• Connecting a Multi-homed Customer to a Single Service Provider
• Connecting a Multi-homed Customer to Multiple Service Providers

Module 6 – Scaling Service Provider Networks

• Scaling IGP and BGP in Service Provider Networks
• Introducing Route Reflectors
• Designing Networks with Route Reflectors
• Configuring and Monitoring Route Reflectors
• Introducing Confederations Configuring and Monitoring Confederations 

Module 7 – Optimising BGP Scalability

• Improving BGP Convergence
• Limiting the Number of Prefixes Received from a BGP Neighbour
• Implementing BGP Peer Groups
• Using BGP Route Dampening