Hochschule Augsburg
NTP Service - NTP Subnet
Peer Status
Host: time2.hs-augsburg.de
remote refid st t when poll reach delay offset jitter
==============================================================================
LOCAL(1) .LOCL. 5 l 948d 64 0 0.000 0.000 0.000
-time1.hs-augsbu 131.188.3.220 2 u 229 1024 377 0.742 0.322 0.083
-time3.hs-augsbu 131.188.3.222 2 u 19 1024 177 0.732 0.042 0.080
*ntp1.rrze.uni-e .DCFp. 1 u 281 1024 377 5.889 0.007 0.102
+ntps1-1.eecsit. 130.149.17.21 2 u 629 1024 377 16.202 -0.074 0.039
+ptbtime2.ptb.de .PTB. 1 u 624 1024 377 16.693 -0.018 0.020
Retrieved 2023-04-01 14:59:53 CEST
This billboard shows the status of configured peers
and possibly other clients poking the xntpd daemon.
The host addresses shown in the remote column should
agree with the DNS entries in the configuration file,
plus any peers not mentioned in the file at the same
or lower than our stratum that happen to be configured
to peer with us.
The refid entry shows the current source of synchronization
for each peer, while the st reveals its stratum and
the poll entry the polling interval, in seconds.
The when entry shows the time since the peer was last
heard, normally in seconds, while the reach entry
shows the status of the reachability register
(see RFC-1305), which is in octal format.
The remaining entries show the latest delay, offset
(difference between the time of the peer and the
local clock, zero for local) and dispersion
(maximum error of local to reference clock)
computed for the peer, in milliseconds.
The tattletale character at the left margin displays
the synchronization status of each peer. The currently
selected peer is marked *, while additional peers
designated acceptable for synchronization, but not
currently selected, are marked +. Peers marked * and
+ are included in a weighted average computation
to set the local clock; the data produced by peers
marked with other symbols are discarded.
See the ntpq documentation
for the meaning of these symbols.
(Quoted from NTP Debugging Techniques.)
A line with
LOCAL in the remote column
and .LOCL. in the refid column is about
the internal clock. Its offset is zero because it is the
reference for the other ones.
A line with GPS_NMEA in the remote column
and with .GPS. in the refid column
is about a GPS receiver.
A line with GENERIC in the remote column
and with .DCFa. in the refid column
is about a DCF77 receiver.
The rest are the local and remote NTP servers we compare
with.
2015-05-11
© Hochschule Augsburg
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