Crafting endless AS-PATHS in BGP
Combining BGP confederations and AS override may lead to a BGP routing loop, causing an endlessly growing AS-PATH.
MAIN POINTS
- BGP confederations and AS override can interact negatively.
- The interaction may result in a BGP routing loop.
- An indefinite expansion of the AS-PATH is a potential consequence.
TAKEAWAYS
- Carefully consider the interaction between BGP confederations and AS override.
- Be aware of potential routing loop risks in BGP configurations.
- Monitor AS-PATH expansions to prevent network issues.