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web100 is the protocol referring to data collected by the original NDT server.

We now refer to these as “datatypes” for the NDT test. NDT Testing ProtocolsĪs a part of our transition from the web100 version of NDT server to the new platform, M-Lab named specific protocol versions for the original server and the new one we are now using. For more information, please see our blog post discussing the Evolution of NDT.

Over the last decade, there are three primary themes that have driven the evolution of NDT: standard kernel instrumentation, advances in TCP congestion control, and protocols and ports to support more clients. Originally developed at Internet2, M-Lab has hosted NDT since our founding in 2009, and helped maintain and develop NDT for most of its history on the M-Lab platform. If you are interested in running an NDT test, please visit our site: History NDT reports upload and download speeds and latency metrics. NDT measures “single stream performance” or “bulk transport capacity”. NDT is a single stream performance measurement of a connection’s capacity for “bulk transport” (as defined in IETF’s RFC 3148.

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