Thousands of enterprise networks are running IOS versions from the 12.4 and 15.x era. They aren't using VxLAN or EVPN. They are using BGP for multihoming exactly as configured in this course.
To appreciate the training, you must understand the target. The 642-661 exam was a beast. While the CCNA taught you how to turn on OSPF, the BGP 642-661 exam taught you how to run the internet.
Key topics included:
Without a master instructor, these topics felt like abstract mathematics. Enter Jeremy Cioara.
Yes, absolutely. Despite the exam being retired, the technical concepts taught by Jeremy Cioara in this series are timeless.
Why did this specific training series stand out among the hundreds of BGP books and videos?
Jeremy Cioara’s CCIP BGP (642-661) course is a masterclass in BGP fundamentals that has stood the test of time. While the exam is gone, the training is still an outstanding resource for any network engineer who wants to truly understand how BGP selects paths, filters routes, and scales in a service provider environment. Pair it with modern Cisco documentation and lab practice for best results today. Thousands of enterprise networks are running IOS versions
Jeremy Cioara’s CBT Nuggets BGP 642-661 course is a legendary training series in the networking world. Even though Cisco has evolved the CCIP (Cisco Certified Internetwork Professional) into newer certifications like CCNP Enterprise, this BGP content remains a masterclass in understanding the "Protocol of the Internet."
Here is a promotional post you can use for a blog, social media, or a training forum:
Unlock the Core of the Internet: Mastering BGP with Jeremy Cioara
If you want to understand how the global internet actually functions, you have to master the Border Gateway Protocol (BGP). While many certifications touch on it, Jeremy Cioara’s CBT Nuggets: Cisco CCIP BGP (642-661) training is widely considered the gold standard for turning complex routing theory into practical, "real-world" skill.
Jeremy’s high-energy teaching style strips away the dry technical jargon found in textbooks. He focuses on the logic and "why" behind the protocol, making even the most advanced topics—like Route Reflectors, Confederations, and Path Selection Attributes—accessible and easy to remember. Why this course is still a must-watch:
The "Protocol of the Internet": Learn how BGP connects over 70,000 Autonomous Systems worldwide. Without a master instructor, these topics felt like
Path Manipulation: Deep dive into weight, local preference, AS-Path, and MED to control traffic flow.
Scalability: Understand why BGP is the most scalable routing protocol Cisco has ever standardized.
Jeremy Cioara’s Logic: Benefit from a legendary instructor who explains how the protocol thinks, not just how to type commands.
Whether you are studying for your CCNP, preparing for the CCIE, or just want to stop being intimidated by your edge router’s config, this training provides the foundation you need.
Ready to dominate the routing table? Check out the course at CBT Nuggets and start labbing today! Key Highlights of the Training
BGP Neighbor Relationships: Setting up eBGP and iBGP sessions. A hallmark of Cioara’s early training (including this
Decision Process: The step-by-step logic routers use to pick the best path.
Policy Routing: Using Prefix Lists and Route Maps to filter updates.
Advanced Architectures: Implementing Confederations to manage large iBGP meshes.
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This article is designed to serve as a review, guide, and historical retrospective, while also providing value for network engineers studying Border Gateway Protocol (BGP).
A hallmark of Cioara’s early training (including this series) is his reliance on the "whiteboard."