Dear Colleagues,
I am Dan Li, a professor in Tsinghua University. I am writing this letter to ask for feedbacks about our recent IETF drafts on source address validation (SAV) technologies. Our team in Tsinghua University has been continuously working on SAV technologies since 2005. In RFC 5210, we divide the SAVA architecture into 3 levels, namely, access network, intra-domain network and inter-domain network. In 2008, together with other colleagues we established the SAVI working group in IETF which focused on SAV at access networks. In recent years, our team has been working on SAV in intra-domain and inter-domain networks, with the particular goal of overcoming the inaccuracy problem of uRPF-related technologies used in current practice. In IETF 112, we gave a presentation on gap analysis of existing intra-AS and inter-AS SAV solutions ( https://datatracker.ietf.org/doc/draft-li-sav-gap-analysis/ ). Recently, we submitted a framework draft of our intra- and inter-domain SAV design ( https://datatracker.ietf.org/doc/draft-li-dsav-framework/). In addition, we also submitted a draft which introduces another kind of inter-domain SAV solution ( https://datatracker.ietf.org/doc/draft-xu-savax-control/). To better move these works forward, we want to get feedbacks on these 3 drafts from our community and call for more colleagues (if interested) to collaborate. Your comments and suggestions will be highly appreciated. Best, Dan
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