Border Gateway Protocol Configuration

Full Course Description

Price: 1795.00

This technically advanced course teaches you how to configure BGP for Cisco routed networks. BGP is important for Internet Service Providers (ISP) and ISP customers to ensure fast and accurate connections. Six Hands-On Labs help you develop the skills to implement BGP in your network.


You Will Learn...

BGP Troubleshooting Techniques
Setup of Cisco Route Maps
BGP Path Manipulation via Regular Expressions
Classless Interdomain Routing (CIDR)
Summarization and Aggregate Addressing for CIDR Blocks
BGP Metrics - Local Preference, Multiple Exit Discriminator and Weight
BGP Redistribution
Synchronization and Next Hop Address Concerns

 


Who Should Attend...

This course is for internet service providers, networking professionals who need to connect to ISPs and other individuals who need to understand how to configure Cisco routers for the BGP protocol.


Prerequisites...

Building Scalable Cisco Networks or equivalent is required.

Follow-On Courses

Customers who enrolled in this class also took:

  1. BCMSN™ (Building Cisco® Multilayer Switched Networks)

     

  2. CIT™ (Cisco® Internetwork Troubleshooting)

     

  3. BSCN™ (Building Scalable Cisco® Networks)

     

  4. OSPF Design and Configuration(2 day)

     

Course Outline

1. Basic BGP
Review of Internet Connectivity
Basic BGP Commands
Understand BGP Route Advertisement
Establish BGP Neighbors
External vs. Internal BGP Neighbor
Conditions for Announcing BGP Routes
Minimize Routing Updates
Reset BGP Links
Stub and Transit Autonomous Systems
Purpose of Synchronization
Alternative to Synchronization
Redistribution vs. Synchronization
Next Hop Address Behavior
Use of Loopback Statement in BGP
Peer Groups Definition
Peer Groups Configuration

2. IP Addressing Choices
Selecting Address Management
Class Inter-Domain Routing (CIDR)
Address Assignment in CIDR
Summarization
Aggregate Address - Summary Only
Aggregate Address - AS Set
Network Command

3. BGP Metrics
Metrics Used to Manipulate Pathways from End Customer to Internet
Local Preference
Weight
Metric Used to Manipulate Pathways from Internet to End Customer Multiple Exit Discriminator (MED)
BGP Path Selection
Understanding Administrative Distance for Route Selection
Load Balancing with BGP

4. Monitoring BGP and Memory Requirements
Understanding BGP Show and Debug Commands
Show IP BGP
Show IP BGP Neighbors
Other Show BGP Commands
Debug IP BGP Events
Memory Requirements for the Full Internet Routing Table
Memory Usage
Understand BGP Route Dampening
Display and Clear Dampened Routes

5. Special BGP Filters
External Routing Protocol Filters
AS Path Filtering
Common Regular Expressions
Typical Regular Expression Filtering Used in BGP
Understand Basic Regular Expression Manipulation
Network Address Filtering
BGP Neighbor Distribution List
Special Extended Access List for Summarization
Detailed Step-by-Step Explanation of These Access Lists

6. Route Maps and BGP Manipulation
Redistribution with BGP
Recommended Redistribution
Non-Recommended Redistribution
Explanation of Route Maps
Route Map Configuration
Route Map Behaves as an Access List
Route Map Can Behave as a Logical AND or Logical OR
Route Map Syntax
Route Map Match Commands
Route Map Set Commands
Weight Attribute Using Route Maps
Local Preference Using Route Maps
MED Using Route Maps
Understand BGP Communities
BGP Communities Commands and Usage

7. Alternatives to Fully Meshed BCP
BGP Confederations
Route Reflectors

Hands-On Lab 1: Basic BGP Setup

On the classroom network consisting of 4 autonomous systems (AS), initialize BGP with internal and external neighbors.

Hands-On Lab 2: BGP Synchronization and Peer Groups

From the previous Hands-On Lab change each AS into a transit AS. Learn when to turn on/off synchronization, the next hop address issues and the use of peer groups in BGP.

Hands-On Lab 3: BGP Summarization

Select a summarization methodology, configure the router, and verify that the summarization works.

Hands-On Lab 4: BGP Path Selection

Evaluate how changing local preference metrics inside an AS affects BGP routing and the BGP forwarding table.

Hands-On Lab 5: BGP Path Manipulation Using Regular Expressions

Using IP AS-path access lists and UNIX regular expressions, manipulate the path selection process. Specify which pathways are acceptable and which are not.

Hands-On Lab 6: AS Prepending

Use router maps to prepend AS numbers to the BGP path to change path selection preference.

Hands-On Lab 7: BGP Path Manipulation Using Route Maps and MED

Determine how an individual Autonomous System should be accessed from another AS. Use router maps to influence how your AS announces the Multiple Exit Discriminator (MED) for each network to its neighbors.

Hands-On Lab 8: BGP Communities with Route Maps

Set local preferences with Community Strings in one AS such that another AS will act upon those Community Strings.

 

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