If you find a copy of this classic training, you are holding a piece of IT training history. It is an exceptional resource for network professionals looking to conquer the "biggest routing protocol in the world" and is highly recommended for anyone pursuing advanced networking skills, from CCIP to CCIE. Have you ever used this series or other training by Jeremy Cioara in your career? I’d be keen to hear about your experiences!
In the world of IT certifications, there are legends, and then there is Jeremy Cioara
Instead of just showing commands, Jeremy explains the architectural problems that forced engineers to invent specific BGP features.
**AS-Path Prepending:**Artificially lengthening the path vector to make an inbound route look less attractive to external autonomous systems.
For those looking to bridge the gap between intermediate routing (OSPF/EIGRP) and advanced internet-level routing, this course provides a perfect foundational bridge. Conclusion If you find a copy of this classic
The concepts in the 642-661 series map directly to sections of the modern CCNP Enterprise (350-401 ENCOR & 300-410 ENARSI) exams, as well as the CCNP Service Provider (350-501 SPCOR) track.
If you are looking to brush up on your core routing knowledge or dive deeper into BGP for the first time, let me know how I can guide you next.
integrated with BGP for sub-second failover Step-by-Step Guide to Lab-Testing Jeremy’s BGP Lessons
If you are pursuing advanced Cisco certifications or want to become a networking expert, this training remains an invaluable resource. Share public link I’d be keen to hear about your experiences
If you are looking to advance your career into the service provider space or master enterprise internet edge design, tracking down these foundational modules is highly recommended.
Production quality and learning aids
The 642-661 curriculum was notoriously challenging because it stripped away the safety nets of internal routing protocols (like OSPF and EIGRP) and forced engineers to think globally. It required a deep understanding of: Inter-domain routing policies. Manipulating path selection using complex attributes. Securing large-scale routing tables.
Configuring reliable underlying transport and troubleshooting the neighbor state machine (Idle, Connect, Active, OpenSent, OpenConfirm, Established). For those looking to bridge the gap between
Navigating the strict operational differences between External BGP (connecting different organizations) and Internal BGP (routing within the same organization). 2. Establishing Neighbor Relationships
: Deep dives into BGP attributes such as NEXT_HOP , AS_PATH , ORIGIN , and MED to determine the best routing paths.
Jeremy treats BGP not just as a exam topic, but as an exciting puzzle. His passion keeps students engaged through complex topics like community attributes and confederations.
The answer is a resounding . While Cisco has updated its certification blueprints, BGP itself is an extraordinarily stable protocol. The core mechanisms governing how internet routers peer, exchange prefixes, and evaluate path attributes have remained virtually unchanged for decades.
remains one of the most legendary resources for cracking this code.