Dear DNSOP WG, I would like to introduce a new Internet-Draft for discussion in the DNSOP Working Group:
A Framework for DNS Resolution Latency Measurement https://datatracker.ietf.org/doc/draft-jwang-dnsop-dns-latency-measurement/ DNS resolution latency is widely used by recursive resolvers, authoritative DNS operators, network operators, measurement platforms, and researchers. However, latency measurements are often obtained using different measurement scopes, measurement points, methodologies, and operational contexts. As a result, measurements reported as DNS latency may represent different aspects of the DNS resolution process and can be difficult to interpret and compare consistently. This draft proposes a conceptual framework for describing DNS resolution latency measurements. The framework introduces common terminology and a set of measurement attributes, including measurement objective, measurement scope, measurement point, latency components, and measurement context. It also defines three conceptual timing components covering client-to-recursive communication, recursive resolver processing, and recursive-to-authoritative interaction. In addition, the draft proposes a reusable measurement description template to facilitate consistent reporting and interpretation of DNS latency measurements. The framework is intentionally implementation-agnostic and protocol-neutral. It does not define new DNS protocol behavior, modify DNS message formats, or prescribe a specific measurement algorithm. Instead, it aims to provide a common conceptual basis for describing and comparing existing DNS latency measurements. I would appreciate feedback from the WG, in particular on the following questions: 1. Is the problem addressed by this draft appropriate for the DNSOP WG? 2. Is the proposed framework and terminology useful for describing and comparing DNS latency measurements in operational environments? I would also welcome comments on the scope, terminology, measurement model, and measurement description template. Thanks for your review and feedback. Best regards, Jiushuang Wang
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