The CCIP (Cisco Certified Internetwork Professional) track was originally designed for senior network engineers, technical support staff, and service provider professionals. The 642-661 BGP exam focused heavily on configuring, monitoring, and troubleshooting BGP in complex environments.
This is the heart of BGP. Jeremy breaks down the complex BGP best path selection algorithm, focusing on key attributes: Weight (Cisco Proprietary) Local Preference AS-Path Length Origin Code MED (Multi-Exit Discriminator) 4. Advanced BGP Policy Control cbt nuggets cisco ccip bgp 642661 by jeremy cioara new
Passing this exam requires more than memorizing path attributes; it demands a deep, operational understanding of how BGP behaves in a service provider environment. For over a decade, IT professionals have turned to one source to bridge the gap between theory and reality: , and specifically, the legendary trainer Jeremy Cioara . Jeremy breaks down the complex BGP best path
This paper does not claim that Cioara’s course alone sufficed for 642-661. Students still required lab repetition and RFC reading. Additionally, the course’s casual tone and occasional humor may not suit all learning styles. However, data from CBT Nuggets user reviews (2008–2015) consistently cited the Cioara BGP series as the difference between passing and failing for non-service-provider engineers. This paper does not claim that Cioara’s course
Learners often struggle to understand why iBGP requires a full mesh or why the BGP split-horizon rule exists. Jeremy clearly illustrates how iBGP prevents routing loops within an AS and immediately transitions into the scalable alternatives: and Confederations . Path Attribute Manipulation
Jeremy's approach is famously high-energy and focuses on the "how and why" of BGP rather than just rote memorization for an exam. Key Learning Pillars