- Loss Episode Metrics for IP Performance Metrics (IPPM), N.G. Duffield, A. Morton, J. Sommers, RFC 6534, May 2012
- A Framework for Packet Selection and Reporting, N.G. Duffield (Ed.), D. Chiou, B. Claise, A. Greenberg, M. Grossglauser. J. Rexford, RFC 5474, March 2009.
- Sampling and Filtering Techniques for IP Packet Selection, T. Zseby, M. Molina, N.G. Duffield, S. Niccolini, F. Raspall, RFC 5475, March 2009.
- RTP Control Protocol Extended Reports (RTCP XR), T. Friedman (Ed.), R. Caceres (Ed.), A Clark (Ed.), K. Almeroth, R. Cole, N.G. Duffield, K. Hedayat, K. Sarac, M. Westerlund, RFC 3611, October 2004