Network Working Group J. Crowcroft Request for Comments: 1165 UCL J. Onions Nottingham University June 1990 Network Time Protocol (NTP) over the OSI Remote Operations Service Status of this Memo This memo suggests an Experimental Protocol for the OSI and Internet communities. Hosts in either community, and in particular those on both are encouraged to experiment with this mechanism. Please refer to the current edition of the "IAB Official Protocol Standards" for the standardization state and status of this protocol. Distribution of this memo is unlimited. Table of Contents 1. Introduction........................................... 1 1.1 Motivation............................................ 1 2. Protocol Overview...................................... 2 3. Operation of the Protocol.............................. 3 4. Network Considerations................................. 4 5. Implementation Model................................... 4 6. Constructing NTP Data Fields........................... 4 7. Discussion............................................. 4 8. Prototype Experience................................... 5 9. References............................................. 5 10. Acknowledgements...................................... 6 Appendix A. NTP Remote Operations Service Specification... 6 11. Security Considerations............................... 9 12. Authors' Addresses.................................... 9 1. Introduction This document describes the Remote Operations and Abstract Syntax for the operation of the Network Time Protocol (NTP) over an ISO OSI stack. NTP itself is documented in great detail in RFC 1119. 1.1 Motivation The motivation behind the implementation of a Remote Operations Crowcroft & Onions