Connects routers within the same Autonomous System. Neighbors do not need to be directly connected, but they require a full-mesh topology or specific design workarounds to avoid routing loops. The AD for iBGP is 200. Deep Dive into the BGP Attributes Hierarchy
BGP plays a vital role in modern networking, and understanding its intricacies is essential for network administrators, engineers, and architects. With BGP, networks can: cbt nuggets cisco ccip bgp 642661 by jeremy cioara work
Jeremy had a gift for simplifying complex BGP concepts. For example, he famously explained the BGP path selection process as a “ranking system” comparing it to choosing a route to a vacation destination—shortest path, most reliable carrier, known friends (AS Path), etc. Connects routers within the same Autonomous System
| Week | Topics from Jeremy’s Course | Hands-On Activity | |------|-----------------------------|-------------------| | 1 | BGP overview, eBGP vs. iBGP, loop prevention | Configure eBGP between 3 routers | | 2 | Path attributes (Weight, LP, AS_PATH) | Manipulate weight to influence outbound | | 3 | BGP decision process (13 steps) | Force one path using MED | | 4 | Route reflectors & confederations | Build a route reflector cluster | | 5 | Filtering (prefix-lists, route-maps) | Block default route from ISP | | 6 | BGP communities & conditional advertising | Tag routes with community no-export | Deep Dive into the BGP Attributes Hierarchy BGP