should distance be this large for a local clock?

Article View: comp.protocols.time.ntp

Article #827

Back to comp.protocols.time.ntp Previous Next

#827

From: Joe Ramey
Date: Sat, 12 Dec 1992 22:10

28 lines
1847 bytes

I am trying to bring up xntp3 on my Sun4.  The other NTP systems on my
network all run version 2 of NTP.  I specified version 2 in the
ntp.conf file for the peers and servers that I configured, but I could
never get xntpd to sync up.

Looking into things further I discovered that it was discarding the
packets because the `distance' field of the packets it received was
too large (0x140000 > 0x100000).  Here is some output from ntpq
looking at our stratum 1 server:

------------------------------------------------------------------------------
/usr/local/etc/ntpq sunspot.hc.ti.com
ntpq> pe
     remote           refid      st  when poll reach  delay  offset   disp
==========================================================================
*127.127.1.0     .LCL.            0    43   64  377  5000.0    0.00    0.0
ntpq> readlist
status=0033 leap_none, sync_unspec, 3 events, event_sync_chg
system="UNIX", leap=00, stratum=1, distance=20000.0, dispersion=0.0,
peer=46196, refid=LCL,
reftime=aed4dce9.4e11c000  Sat, Dec 12 1992 15:49:29.304,
clock=aed4dd18.19abe000  Sat, Dec 12 1992 15:50:16.100, hold=0,
phase=0.00, freq=0.00, compliance=0.00
ntpq>
------------------------------------------------------------------------------

The delay (5000) and the distance (20000) seem awfully large to me.
Does it look like this server is working properly or not?

Technical Details

Message-ID: <RAMEY.92Dec12161000@jello.csc.ti.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!csc.ti.com!tilde.csc.ti.com!fstop.csc.ti.com!ramey

Show Full Headers

Complete Article Headers

Newsgroups: comp.protocols.time.ntp
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!csc.ti.com!tilde.csc.ti.com!fstop.csc.ti.com!ramey
From: ramey@csc.ti.com (Joe Ramey)
Subject: should distance be this large for a local clock?
Message-ID: <RAMEY.92Dec12161000@jello.csc.ti.com>
Originator: ramey@jello
Lines: 28
Sender: usenet@csc.ti.com
Nntp-Posting-Host: jello
Reply-To: ramey@csc.ti.com
Organization: Texas Instruments
Date: Sat, 12 Dec 1992 22:10:43 GMT