Geoffrey M. Garner (email@example.com) is a consultant in telecommunications, specializing in network timing, jitter, and synchronization; network performance; standards development; and related modeling and simulation. He currently consults for Huawei Technologies on transport of timing and synchronization in Telecom networks using IEEE 1588 and PTP profiles being developed in ITU-T Q13/15. He is editor of the ITU-T supplement in Q13 that will document the simulations and analyses in support of the PTP profile development. He also consults for Broadcom, Hirschmann, Marvell, and Siemens in his work in support of and as editor of IEEE 802.1ASbt. He has been a consultant since 2003; recent work includes simulation of timing performance for new OTN clients and development of related standards in Q13/15, for Huawei, and simulation of timing transport for AVB and serving as editor of IEEE Std 802.1AS – 2011, for Samsung. He is a member of the IEEE Registration Authority Committee. Prior to 2003, he was a Distinguished Member of Technical Staff in Bell Labs Lucent Technologies. Geoffrey Garner received an S.B. degree in Physics from M.I.T. in 1976, S.M. degrees in Nuclear Engineering and Mechanical Engineering from M.I.T. in 1978, and a Ph.D in Mechanical Engineering from M.I.T. in 1985.