@techreport{zhang-sidrops-aspa-egress-04,
    number =    {draft-zhang-sidrops-aspa-egress-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zhang-sidrops-aspa-egress/04/},
    author =    {Jia Zhang and Yangyang Wang and Maria Matějka and Mingwei Xu and Kotikalapudi Sriram and Nan Geng},
    title =     {{ASPA-based AS\_PATH Verification for BGP Export}},
    pagetotal = 10,
    year =      2026,
    month =     jan,
    day =       20,
    abstract =  {This document describes AS\_PATH verification based on Autonomous System Provider Authorization (ASPA) for egress eBGP speakers. ASPA is a Resource Public Key Infrastructure (RPKI) object that allows an AS to register its transit provider ASes. Performing ASPA-based AS\_PATH verification at egress can prevent the propagation of route leaks to external peers, check for local misconfigurations, and help detect potential ASPA registration errors. This approach complements ingress-side verification; it ensures coverage should ASPA deployment be absent at the ingress eBGP router of the AS.},
}