https://nalar.dev/tags/aspa/ Recent content in ASPA on Nalar Hugo en-us Wed, 23 Sep 2026 00:00:00 +0000 https://nalar.dev/rpki-aspa-authorizes-transit-relationships-for-as-path-checks/ Wed, 23 Sep 2026 00:00:00 +0000 https://nalar.dev/rpki-aspa-authorizes-transit-relationships-for-as-path-checks/ <p>A valid route origin says little about the relationships represented by the rest of an AS_PATH. A prefix can originate from an authorized AS and still travel through a sequence that conflicts with expected customer-to-provider structure. Autonomous System Provider Authorization, or ASPA, adds a signed RPKI object for that second problem.</p> <p>As of September 2026, ASPA is still specified in active IETF Internet-Drafts rather than a published RFC. The current ASPA profile draft defines the signed object, while the current verification draft defines procedures for applying validated ASPA data to BGP AS_PATHs. That status matters operationally: fields and procedures remain subject to change until the specifications complete the standards process.</p>