Improvements to the NIST network time protocol servers

Metrologia

Volumn 45, Issue 6, 2008, Pages

  Levine, Judah ^a  

^a NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC CLOCKS; ATOMIC PHYSICS; CLOCKS; COMPUTER NETWORKS; FREQUENCY STANDARDS; TELEPHONE SYSTEMS;

NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGIES; NETWORK TIME PROTOCOLS; TIME INFORMATIONS; TIME SERVERS; TIME STAMPS; TRANSMISSION DELAYS;

SERVERS;

EID: 58149354751     PISSN: 00261394     EISSN: 16817575     Source Type: Journal    
DOI: 10.1088/0026-1394/45/6/S03     Document Type: Article

References (12)

1. The NIST web page contains a list of the current servers. See http://tf.nist.gov/tf-cgi/servers.cgi
2. Levine J 1998 Time synchronization over the Internet using 'AUTOLOCK' Proc. IEEE Int. Frequency Control Symp. (Pasadena, CA) pp 241-9 (IEEE Catalog No 98CH36165)
3. The ACTS protocol the first servers are described in, Levine J, Weiss M, Davis D D, Allan D W and Sullivan D B 1989 The NIST automated computer time service J. Res. Natl Inst. Sci. Technol. 94 311-21
4. See also Beehler R E and Lombardi M A 1991 NIST Time and Frequency Services NIST (Boulder, CO) 432 Special Publication
5. Levine J, Lombardi M A and Novick A N 2002 NIST Computer Time Services: Internet Time Service (ITS), Automated Computer Time Service (ACTS) (Boulder, CO) 250-9 and time.gov web sites NIST Special Publication
6. Levine J 2008 A review of time and frequency transfer methods Metrologia 45 S162-74
7. The format of the messages in this protocol is described in Request for Comments (RFC) 868, available on the web at tools.ietf.org/html/868
8. The format of the messages in this protocol is described in Request for Comments (RFC) 867, available on the web at tools.ietf.org/html/867
9. The format of the messages in this protocol is described in Request for Comments (RFC) 1305, available on the web at tools.ietf.org/html/1305
10. Levine J 1995 An algorithm to synchronize the time of a computer to universal time IEEE/ACM Trans. Networking 3 42-50
11. The significance of the slope is discussed in Levine J 1999 Introduction to time and frequency metrology Rev. Sci. Instrum. 70 2567-95
12. See also Sullivan B D, Allan D W, Howe D A and Walls F L (ed) 1990 Characterization of clocks and oscillators NIST Technical Note 1337 Boulder, CO