Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 956
Enabling NTP, Configuring NTP Broadcasts
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Related Configuration Tasks • Configuring NTP Broadcasts • Disabling NTP on an Interface • Configuring a Source IP Address for NTP Packets (optional) Enabling NTP NTP is disabled by default. To enable NTP, specify an NTP server to which the Dell EMC Networking system synchronizes. To specify multiple servers, enter the command multiple times. You may specify an unlimited number of servers at the expense of CPU resources. • Specify the NTP server to which the Dell EMC Networking system synchronizes. CONFIGURATION mode ntp server ip-address Examples of Viewing System Clock 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 Example of Configuring NTP Broadcasts 2w1d11h : NTP: Maximum Slew:-0.000470, Remainder = -0.496884 956 System Time and Date
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