@techreport{li-sav-gap-analysis-01,
    number =    {draft-li-sav-gap-analysis-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-li-sav-gap-analysis/01/},
    author =    {Dan Li and Jianping Wu and Mingqing(Michael) Huang and Lancheng Qin and Nan Geng},
    title =     {{Source Address Validation: Use Cases and Gap Analysis}},
    pagetotal = 11,
    year =      2022,
    month =     jan,
    day =       10,
    abstract =  {This document identifies the importance and use cases of source address validation (SAV) at both intra-domain level and inter-domain level (see {[}RFC5210{]}). Existing intra-domain and inter-domain SAV mechanisms, either Ingress ACL filtering {[}RFC2827{]}, unicast Reverse Path Forwarding (uRPF) {[}RFC3704{]}, or Enhanced Feasible-Path uRPF (EFP-uRPF) {[}RFC8704{]} has limitations in scalability or accuracy. This document provides gap analysis of the existing SAV mechanisms.},
}