AS43 ASPA Check - Brookhaven National Laboratory

Published

BNL-AS - Brookhaven National Laboratory🇺🇸 - ASPA check for AS43: the upstream transit providers AS43 has authorized in its RPKI Autonomous System Provider Authorization (ASPA) object, and the networks that list AS43 as their provider. Routers that validate ASPA use these records to detect route leaks in BGP paths.

ASPA Status
Published
Upstream Providers
1
Downstream Customers
0

How to read this ASPA check

The provider below is the only network allowed to appear directly above AS43 in an AS-path. If AS43 uses a transit provider that is missing from this list, routers that enforce ASPA treat its routes through that provider as invalid, so the list should include every current and backup transit provider. Peers do not belong in it.

Step-by-step ASPA check guide - including how to validate an AS-path hop by hop.

Peering Topology

AS43 peering topology: 1 upstream provider and 0 downstream customersUpstreams: AS293. No downstreams.AS43 - BNL-AS - Brookhaven National LaboratoryAS43BNL-AS - Brookhaven N…AS293ESNET - ESnetAS293 - ESNET - ESnetUPSTREAMSDOWNSTREAMS

Upstream Providers(1)

AS43 authorizes these ASNs as upstream transit providers.

ASNName
AS293🇺🇸ESNET - ESnet

ASPA object expires: 2026-10-28

Related Tools and Guides

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