Re: NTp sources that work in a datacenter (was Re: Is latency equivalent to RTT?)

In message <Pine.LNX.4.44.0305140802170.7544-100000@twin.uoregon.edu>, Joel Jae ggli writes:

Also if you just need a high level of syncronization between the time on all your hosts you can just deploy one standalone ntp server, sync it against public time sources and get everything synced against that. its probably a 95% solution to most people's timeing needs.

If I recall correctly, NTP assumes that latency = RTT/2. You might make it work well for his application *if* you set up your tree so that your paths are each one hop, or at least symmetric over your network. --Steve Bellovin, http://www.research.att.com/~smb (me) http://www.wilyhacker.com (2nd edition of "Firewalls" book)