HP-UX Internet Services Administrator's Guide (August 2003)

Conﬁguring NTP

Advanced NTP Topics

Chapter 4 89

The ntpq Program Output

The -p option prints a list of peers known to the server, along with a

summary of their states as shown in Table 4-7.

Each column in Table 4-7 is described as follows:

• The remote (server name) column depicts the hosts speciﬁed in the

local host’s conﬁguration ﬁle plus other hosts that are conﬁgured as

peers with the local host. The host address can be preceded by the

following special characters:

❏ * indicates the current synchronization source.

❏ # indicates that the host is selected for synchronization, but

distance from the host to the server exceeds the maximum value.

❏ o indicates that the host is selected for synchronization, and the

PPS signal is in use.

❏ + indicates the host included in the ﬁnal synchronization

selection set.

❏ x indicates that the host is the designated false ticker by the

intersection algorithm.

❏ . indicates that the host is selected from the end of the candidate

list.

❏ - indicates a host discarded by the clustering algorithm.

❏ blank indicates a host is discarded due to high stratum and/or

failed sanity checks.

• The refid (reference identiﬁcation) column indicates the current

source of synchronization for the remote host. .WWVB. indicates that

the host uses a radio clock that receives time signals from the U.S.

government radio station WWVB.

Table 4-7 An ntpq Output Indicating Known NTP Hosts

remote refid st t when poll reach delay offset disp

==================================================================

*GPS_HP(1) GPS 0 l 48 64 377 0.00 0.516 4.19

hpps.cup.hp cupertino 3 u 467 1024 377 7.20 -12.430 15.67

+server2 WWVB 1 u 173 256 377 279.95 20.56 16.40

+node1 node3 2 u 131 256 373 9.89 16.28 23.25