Dynabrade Dynabug 57810, Руководство пользователя

Страница: 63 / 68

Table 4: show ntp status Output Fields (continued)
Field Description Field Name
The stratum of the peer server. Anything greater than 1 is a secondary reference source, and the number
roughly represents the number of hops away from the stratum 1 server.. Stratum 1 is a primary reference,
such as an atomic clock. stratum
The precision of the peer clock, how precisely the frequency and time can be maintained with this
particular timekeeping system.
precision
The total roundtrip delay to the primary reference source, in seconds.
rootdelay
The maximum error relative to the primary reference source, in seconds. rootdispersion
An identification number of the peer in use.
peer
Reference identifier of the remote peer. If the reference identifier is not known, this field shows a value
of
0.0.0.0 .
refid
The local time, in timestamp format, when the local clock was last updated. If the local clock has
never been synchronized, the value is zero.
reftime
The NTP broadcast message polling interval, in seconds.
poll
The current time on the local router clock. clock
The current mode of NTP operation, where 1 is symmetric active, 2 is symmetric passive, 3 is client, 4
is server, and 5 is broadcast.
state
Current estimated offset of the peer, in milliseconds. Indicates the time difference between the
reference clock and the local clock.
offset
The frequency of the clock.
frequency
Indicates the magnitude of jitter, in milliseconds, between several time queries. jitter
A measure of how well this clock can maintain a constant frequency.
stability
Sample Output
show ntp status
user@host>
show ntp status
assID=0 status=0544 leap_none, sync_local_proto, 4 events, event_peer/strat_chg,
version="ntpd 4.2.2p1@1.1570-o Tue May 19 13:57:55 UTC 2009 (1)",
processor="x86_64", system="Linux/2.6.18-164.el5", leap=00, stratum=4,
precision=-10, rootdelay=0.000, rootdispersion=11.974, peer=59475,
refid=LOCAL(0),
reftime=d495c32c.0e71eaf2 Mon, Jan 7 2013 13:57:00.056, poll=10,
clock=d495c32c.cebd43bd Mon, Jan 7 2013 13:57:00.807, state=4,
offset=0.000, frequency=0.000, jitter=0.977, noise=0.977,
stability=0.000, tai=0
51 Copyright © 2014, Juniper Networks, Inc.
Chapter 5: Monitoring Commands