Administrator Guide

version number (OPTIONAL) Enter the keyword version and a number to correspond to the NTP
version used on the server. The range is from 1 to 4.
minpoll polling-
interval
(OPTIONAL) Enter the keyword minpollthen the polling-interval. The polling
interval range is from 4 to 16.
maxpoll polling-
interval
(OPTIONAL) Enter the keyword maxpollthen the polling-interval. The polling
interval range is from 4 to 16.
Defaults Not configured.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.14(0.0) The trusted-key range value is increased from 1 to 65534. Also, introduced the
minpoll and maxpoll polling interval options.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.6(0.0) Added support for VRF.
9.4.(0.0) Added support for VRF.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.11.1 Introduced on the Z9000.
8.4.1.0 Added IPv6 support.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.1.1.0 Introduced on the E-Series.
Usage
Information
You can configure multiple time-serving hosts. From these time-serving hosts, the Dell EMC Networking
OS chooses one NTP host with which to synchronize. To determine which server is selected, use the
show ntp associations command.
Because many polls to NTP hosts can affect network performance, Dell EMC Networking recommends
limiting the number of hosts configured.
By default, the system performs a time synchronization if the time difference from the time source is
greater than one second.
When the Dell EMC Networking OS NTP client receives inconsistent timestamp in the origin timestamp
filed, it logs the syslog message. It is due to the older versions of NTPD server implementation. Upgrade
the system to the latest NTPD package in the NTP server and the system logs the following NTP syslog
message:
Dell EMC# May 30 13:27:46 %STKUNIT2-:CP %ntp-6-: receive:
Unexpected origin timestamp 0xdeb95bee.06ba346e does not match aorg
0000000000.00000000 from server@10.16.151.117 xmt 0xdeb95bee.30907a87
1704 System Time and Date