Practical BGP Fundamentals, eBGP, iBGP, Route Reflectors, and Confederations
1-Day Instructor-Led Hands-On Lab Class
Available in either Web-Based Delivery or On-Site Delivery
Minimum 8 students – Maximum 16 students
What Students are Saying About this Class:
- “[Instructor] covered the information incredibly well and all of it was applicable to my job. I couldn’t be happier with this course.”
- “The hands on labs and instructor lead lab reviews were very educational. Thanks you for this learning opportunity”
- “Andy Walding was an excellent instructor. I really appreciated Andy sharing his customer experiences during the class. the lab exercises were very helpful and easy to follow. Great class!”
- “Labs were well planned and very easy to follow.”
Course Description
Border Gateway Protocol (BGP) is the routing protocol used to exchange network reachability information between autonomous systems and is fundamental to Internet and service-provider routing.
CSI-HO-028-C – BGP Routing in a Day is a focused one-day hands-on course designed to give students a practical introduction to how BGP works, how it is configured, and how its major architectural components fit together.
Using CellStream’s hands-on “follow me” learning approach, students progress from BGP fundamentals into protocol operation, eBGP and iBGP, Route Reflectors, and BGP Confederations.
The goal is not to cover every BGP feature in a single day.
Instead, students build a solid foundation that allows them to understand:
- What BGP is and why it is used.
- How BGP routers establish relationships.
- How BGP exchanges reachability information.
- What differentiates eBGP from iBGP.
- Why iBGP scaling becomes a challenge.
- How Route Reflectors address iBGP scaling.
- How BGP Confederations provide another scaling approach.
- How to configure and verify fundamental BGP operation.
Why BGP Skills Matter
BGP is fundamentally different from many Interior Gateway Protocols.
Rather than simply determining the shortest internal path, BGP is designed to exchange reachability information between routing domains and support scalable routing architectures.
Understanding BGP helps technicians and engineers answer important questions such as:
- Who is my BGP neighbor?
- Is this an eBGP or iBGP relationship?
- Has the BGP session been established?
- What routing information is being exchanged?
- Why would Route Reflectors be required?
- When might Confederations be used?
These concepts provide the foundation needed for deeper BGP configuration, operations, and troubleshooting.
Course Objectives
Upon completion of this course, students will be able to:
- Explain the fundamental purpose of BGP.
- Understand where BGP fits within IP routing.
- Explain basic BGP protocol operation.
- Configure fundamental BGP neighbor relationships.
- Examine BGP protocol information and status.
- Explain the difference between eBGP and iBGP.
- Understand why iBGP creates scaling considerations.
- Explain the purpose of BGP Route Reflectors.
- Describe how Route Reflectors are used within an iBGP environment.
- Explain the purpose of BGP Confederations.
- Describe how Confederations can be used to organize larger BGP environments.
- Use router operational commands to verify fundamental BGP behavior.
- Apply hands-on configuration and verification techniques.
The emphasis is on understanding BGP architecture and operation rather than simply memorizing configuration commands.
eBGP vs. iBGP
One of the first important distinctions students make is the difference between:
eBGP — External BGP Used between different autonomous systems.
and:
iBGP — Internal BGP Used between BGP routers within the same autonomous system.
Although both use BGP, their roles and design considerations differ.
Understanding that distinction is essential before progressing into more advanced subjects such as Route Reflectors and Confederations.
Scaling iBGP
As an iBGP network grows, maintaining BGP relationships between routers can become increasingly complex.
This course introduces two important architectural approaches used to address that challenge:
Route Reflectors – Allow selected routers to distribute routes between iBGP peers without requiring every router to maintain a direct BGP relationship with every other router.
BGP Confederations – Allow a larger autonomous system to be divided into smaller internal autonomous-system structures while still appearing externally as a single autonomous system.
Students learn why these mechanisms exist and where they fit within BGP design.
Audience
This course is designed for technical professionals who need a practical introduction to BGP.
Ideal participants include:
- Network Engineers
- Service Provider Engineers and Technicians
- Data Center Technicians and Engineers
- Network Operations Center personnel
- Network Administrators
- Network Design Engineers
- Network Support personnel
- Systems and Test Engineers
- Network Management personnel
- Technical Sales Engineers
- Technical Marketing personnel
- Individuals preparing for networking certifications
Course Prerequisites
Students should have a basic understanding of IP networking, IPv4 addressing, subnetting, and routing.
Previous BGP experience is not required.
Students should be comfortable with basic router configuration concepts so the class can concentrate on BGP itself.
Because this is a hands-on course, students will use the CellStream router lab throughout the class.
Course Materials
Students receive:
- Course Student Guide
- Hands-On Lab Guide
- Access to the CellStream router lab environment
- BGP configuration exercises
- eBGP and iBGP exercises
- Route Reflector exercises
- BGP Confederation exercises
- Additional routing reference material
Course Outline:
- Section 1: Course Introduction and Logistics
- Section 2: BGP Fundamental Concepts
- Section 3: The BGP Protocol and Format
- Section 4: eBGP vs iBGP
- Section 5: BGP Route Reflectors
- Section 6: BGP Confederations
Why Take This Course?
BGP is a large subject, and attempting to learn every feature at once can quickly become overwhelming.
BGP Routing in a Day concentrates on the architectural concepts students need first.
In one focused day, students progress from: What is BGP? to: How does BGP operate? to: What is the difference between eBGP and iBGP? to: How do Route Reflectors and Confederations help scale BGP?
Most importantly, students reinforce those concepts by working directly with BGP in the lab.
Related Training
Students who want to continue beyond BGP fundamentals may progress into CellStream training covering:
- Advanced Layer 3 Routing
- Advanced IPv4 networking
- OSPF
- IPv6 routing
- MPLS
- Network troubleshooting
- Wireshark and packet analysis
Course Availability:
Contact us for schedule dates and times via our contact form or through the details provided on the page.
View the course calendar and browse for our schedule. It will show scheduled courses and available dates for scheduling.
Course Description, Content, Outline, and Instructional Design are Copyright ©CellStream, Inc.