The isn’t just a training series—it’s a piece of networking education history. It represents a time when BGP training was scarce, when learning this complex protocol felt daunting, and when one charismatic instructor made it all feel possible.
In standard iBGP setups, a full-mesh topology is required because iBGP routers do not re-advertise routes learned from one iBGP peer to another. To solve the scalability issues this creates in massive networks, Cioara taught the two major mitigation techniques:
The heart of BGP lies in its attributes. Cioara dedicated a substantial portion of the course to breaking down the 13-step BGP path selection mechanism. Key attributes covered in detail included: A Cisco-proprietary, local attribute. cbt nuggets cisco ccip bgp 642661 by jeremy cioara new
Tagging routes with specific values to simplify policy application across global networks. 5. Scaling BGP in Large Networks
To fully appreciate the BGP 642-661 training, it helps to understand the certification it was built for. The isn’t just a training series—it’s a piece
The primary strength of the 642-661 series lies not merely in the technical content, but in the delivery by Jeremy Cioara. In the world of technical training, instructors often fall into two traps: either they are dry reciters of command-line syntax, or they are overly theoretical academics disconnected from the keyboard. Cioara deftly avoids both.
Border Gateway Protocol (BGP) is the backbone of the internet, the routing protocol that allows the world's autonomous systems to communicate. For network engineers aiming for high-level certification, particularly the Cisco Certified Internetwork Professional (CCIP) or CCNP Service Provider, mastering BGP is not optional—it is essential. To solve the scalability issues this creates in
Scale BGP networks using Route Reflectors and Confederations.
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
You can access current networking courses and materials through the CBT Nuggets Cisco training library . Introductory Nugget: Cisco CCIP BGP 642-661
