paul@kuhub.cc.ukans.edu (03/09/91)
From Multinet's (tcp/ip for VMS) NTP (made by TGV, TWG is Wollongong and they make Win/tcp for VMS) I get the following display. Could someone please provide an explanation of the first column, Reach, and Disp? (Multinet NTP docs don't even say how to get this display, no less talk about it.) And why is truechimer.cso.uiuc at stratum 0?? It's supposed to be a WWVB clock, and it is currently pingable! < NTP peers: < Remote Address Stratum Poll Reach Delay Offset Disp < ======================================================================= < + 192.43.244.9 1 64 017 1.005 0.800 0.486 < - 130.126.174.40 0 64 000 0.000 0.000 64.000 < * 16.1.0.4 1 64 015 0.522 0.489 0.303 < + 128.4.0.1 1 64 017 0.859 0.355 0.155 Dave, I do find this display useful to diagnose network problems, also! :-)
Mills@udel.edu (03/09/91)
The truechimer.cso.uiuc.edu had a version-mismatch problem and has been rewound. See the man pages for the ntp.3.4 distribution for billboard interpretation. See the NTP version-2 spec (RFC-1119) for a description of the reachability and dispersion variables. Reachability is shown in the billboard as an octal encoding of a shift register, with each bit corresponding to a valid update message. Dispersion is a measure of computed offset sample variance. Dave