Concept Guide

key keyid (OPTIONAL) Enter the keyword key and a number as the NTP peer key. The range is
from 1 to 65534.
prefer (OPTIONAL) Enter the keyword prefer to indicate that this peer has priority over other
servers.
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 congured.
Command Modes CONFIGURATION
Supported Modes Full–Switch
Command History
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.
9.9(0.0) Introduced on the FN IOM.
9.6(0.0) Added support for VRF.
8.3.11.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
You can congure multiple time-serving hosts (up to 250). From these time-serving hosts, the system chooses one
NTP host with which to synchronize. To determine which server was selected, use the show ntp
associations command.
Because many polls to NTP hosts can impact network performance, Dell Networking OS recommends limiting the
number of hosts congured.
Related Commands show ntp associations — displays the NTP servers congured and their status.
ntp source
Specify an interface’s IP address to be included in the NTP packets.
Syntax
ntp source interface
To delete the conguration, use the no ntp source command.
Parameters
interface Enter the following keywords and slot/port or number information:
• For Loopback interfaces, enter the keyword loopback then a number from zero (0)
to 16383.
• For a Port Channel interface, enter the keyword lag then a number. The range is
from 1 to 128.
•
For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
1324 System Time