Chuck, the problem is that the PC / Router / etc clock could achieve the same accuracy even with a stratum 1 reference.. Also, I believe that there is a issue about latency as well.... Sort of if I said "NOW", do I mean "NOW" when I said it or do I mean "NOW" when you hear it.. :-)) . I believe that's the problem Howard was talking about below....
Jason ""Chuck Larrieu"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > ""Howard C. Berkowitz"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > In the ongoing IETF BMWG work on routing convergence, we are hoping > > that NTP will be good enough to track protocol behavior, but some of > > the more statistically-minded researchers are worried that it will > > not. I'm hoping that most of our basic measurements can be done using > > NTP-synchronized routers as the source and sink of data, but other > > workers are pressing for GPS or other, more accurate time > > synchronization. > > I thought the NTP stratum 1 reference clocks were about as accurate as one > can get. > > Off topic a bit, but one of my installed utilities is an SNTP client that > can use any public time source as a reference clock. I'm using NIST, NASA, > or the USNO depending. Aren't these sources based on the atomic clocks that > claim accuracy of 1 millisecond per century or so? > > http://www.arachnoid.com/abouttime/index.html > ( several interesting free things here) > > free - subject to the terms of the license agreement > http://www.arachnoid.com/careware/index.html > ( something at least one person on this list needs to take to heart ) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30641&t=30560 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
