davem@sdcrdcf.UUCP (David Melman) (01/09/86)
I am interested in implementing a clock synchronization scheme for the hosts on our ethernet based LAN. We have a Vax-780 running 4.2bsd and many Suns. My off-the-cuff plan is: Have the Vax poll each host clock via daemons and IPC communication, statistically determine an average of the "good" clock times, and reset all the host clocks to the newly calculated time. Additionally, we are soon to gain an Arpanet connection. This means we probably want to conform to accepted protocols. If anybody has any experience or comments it would be greatly appreciated. David Melman uucp: sdcrdcf!davem
auerbach karl%b.mfenet@lll-mfe.arpa (01/12/86)
You might find some ideas in a recent note from the ARPAnet protocol
folks:
RFC956 is entitled "Algorithms for Synchronizing Network Clocks."
(RFC's are available from the DDN network information center at SRI in
Menlo Park, California. They are also available for file transfer if
you are on the DDN.)
--karl-- (Karl Auerbach, Epilogue Technology Corporation)
(Auerbach#K%MFE@LLL-MFE.ARPA)jsq@im4u.UUCP (John Quarterman) (01/13/86)
In article <2563@sdcrdcf.UUCP> davem@sdcrdcf.UUCP (David Melman) writes: >I am interested in implementing a clock synchronization scheme >for the hosts on our ethernet based LAN. ... >If anybody has any experience or comments it would be greatly appreciated. I've just posted a summary of ARPA Internet network time synchronization methods to mod.std.unix. As I noted there, if there is enough interest I will post the relevant RFCs (specifications) to mod.sources. -- John Quarterman, UUCP: {gatech,harvard,ihnp4,pyramid,seismo}!ut-sally!im4u!jsq ARPA Internet and CSNET: jsq@im4u.UTEXAS.EDU, jsq@sally.UTEXAS.EDU