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Showing posts with label NextHop. Show all posts

Day 12 — BGP NEXT_HOP: Reachability, iBGP Preservation and `next-hop-self`

Day 12 — BGP NEXT_HOP: Reachability, iBGP Preservation and `next-hop-self`

September 07, 2026

Learning objective Predict common NEXT_HOP behavior across eBGP and iBGP, prove whether a received next hop is recursively reachable, and c...

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Day 59 — RPKI Route Origin Validation: ROAs, Valid, Invalid and NotFound

1. Opening RPKI Route Origin Validation answers a narrow but powerful question: is the origin AS in this BGP route authorized by the addres...

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