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The IRR Landscape and its Implications on Global Internet Traffic#

nog.fi meeting 2026.06 digest Program Core pick 16–17 June 2026

Abstract Slides Recording

Daniel Wagner (DE-CIX)

Play the recording: The IRR Landscape and its Implications on Global Internet Traffic

  • Why: Route-server prefix filters at IXPs are generated from IRR data; when AS-SETs are inconsistent or stale, traffic that should flow through the peering fabric doesn't. This is the data-quality counterpart to the ASPA talk, attacking the same trust gap from the legacy side.
  • What: Latest results from Wagner's RIPE Labs article series on the IRR landscape, including previously unreleased insights on AS-SET heterogeneity, IRR lookup ordering, and the measured traffic impact at a very large IXP, ending in a community call to action. (from abstract only)
  • How: Analysis of IRR database contents and route-server filter-generation behavior, correlated with observed traffic at a large IXP.
  • Where applicable: The measurement is DE-CIX-scale (org-specific), but the mechanism — filters generated from heterogeneous IRR data — applies to every IXP participant and most transit relationships. Direction of findings transfers; absolute numbers do not.