■ Offset—Difference, with the lowest dispersion in the sample buffer, between
the system’s clock and the server’s clock
■ Disp.—Lowest measure, in the sample buffer, of the error associated with
the peer offset, based on the peer delay
■ Example
host1# show ntp associations
Peer Address Stratum Poll Reachable Precision Delay Offset Disp.
- 10.6.129.58 3 512s 01111111 0.000000s 0.000s 0.052s 0.010s
+~152.2.21.1 2 256s 11111111 0.000015s 0.070s 0.039s 0.020s
+~128.182.58.100 2 256s 11011111 0.000004s 0.030s 0.019s 0.074s
*p128.118.25.3 2 256s 10111111 0.000015s 0.020s 0.038s 0.073s
(* Master, + Selected, - Candidate, x Unusable) (p Preferred, ~
Configured)
■ See show ntp associations.
show ntp associations
■ Use to view the information about the NTP servers you assigned.
■ Field descriptions
■ Peer—IP address of server, status of the server: configured, master, selected,
candidate, correct, or unusable
■ configured—Confirmation that you assigned this NTP server to the
system
■ master—System has chosen this server as the master
■ selected—System will consider this server when it chooses the master
■ candidate—System may consider this server when it chooses the master
■ correct—System considers the server’s clock to be reasonably correct
■ unusable—Server does not meet the initial criteria for the master
■ stratum—Number of hops between the server and its stratum 1 server
■ Peer is a Broadcast/Configured Server—Type of NTP server: one that
broadcasts NTP messages or one you have configured for NTP services
■ version—Version of NTP on the server
■ polled every—Time between NTP requests from the system to the server
■ polls every—Time between NTP requests from the server to its NTP
servers
■ Root Delay—Round-trip time between the server and its stratum 1 root
server
■ Root Dispersion—Measure of all the errors associated with the network
hops and servers between the server and its stratum 1 server
534 ■ Monitoring NTP
JUNOSe 11.1.x System Basics Configuration Guide
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