The University of New Hampshire Interoperability Lab will host a plugfest, performing interoperability testing of devices that comply with the IEEE 1588 Precision Time Protocol (PTP) standard. The Precision Time Protocol interoperability plugfest will take place September 27 through 29 at the lab's facility in Durham, NH. The testing plugfest will be held in association with the 2010 International IEEE Symposium on Precision Clock Synchronization for Measurement, Control and Communication. That event will immediately follow the plugfest, September 29 through October 1 in nearby Portsmouth, NH.