Deployment Guide

Table Of Contents
To display the system clock state with respect to NTP, use the show ntp status command from EXEC Privilege mode.
DellEMC#show ntp status
Clock is synchronized, stratum 4, reference is 10.16.151.117, vrf-id is 0
frequency is -44.862 ppm, stability is 0.050 ppm, precision is -18
reference time deeef7ef.85eeaa10 Tue, Jul 10 2018 9:16:31.523 UTC
clock offset is -0.167449 msec, root delay is 149.194 msec
root dispersion is 54.557 msec, peer dispersion is 0.782 sec
peer mode is client
DellEMC#
To display the calculated NTP synchronization variables received from the server that the system uses to synchronize its clock,
use the show ntp associations command from EXEC Privilege mode.
DellEMC#show ntp associations
remote vrf-Id ref clock st when poll reach delay offset disp
====================================================================================
*10.16.151.117 0 45.127.112.2 3 10 16 377 0.46400 -7.4879 3.19999
* master (synced), # backup, + selected, - outlier, x falseticker
DellEMC#
Configuring NTP Broadcasts
With Dell EMC Networking OS, you can receive broadcasts of time information.
You can set interfaces within the system to receive NTP information through broadcast.
To configure an interface to receive NTP broadcasts, use the following commands.
Set the interface to receive NTP packets.
INTERFACE mode
ntp broadcast client
2w1d11h : NTP: Maximum Slew:-0.000470, Remainder = -0.496884
Disabling NTP on an Interface
By default, NTP is enabled on all active interfaces. If you disable NTP on an interface, Dell EMC Networking OS drops any NTP
packets sent to that interface.
To disable NTP on an interface, use the following command.
Disable NTP on the interface.
INTERFACE mode
ntp disable
To view whether NTP is configured on the interface, use the show config command in INTERFACE mode. If ntp disable
is not listed in the show config command output, NTP is enabled. (The show config command displays only non-default
configuration information.)
Configuring a Source IP Address for NTP Packets
By default, the source address of NTP packets is the IP address of the interface used to reach the network.
You can configure one interfaces IP address include in all NTP packets.
To configure an IP address as the source address of NTP packets, use the following command.
Configure a source IP address for NTP packets.
CONFIGURATION mode
ntp source interface
Enter the following keywords and slot/port or number information:
906
System Time and Date