Configuring Ntp Broadcasts; Disabling Ntp On An Interface; Configuring A Source Ip Address For Ntp Packets - Dell Z9000 Configuration Manual

ntp update-calendar
Example of Updating the System Clock Relative to NTP
R5/R8(conf)#do show calendar
06:31:02 UTC Mon Mar 13 1989
R5/R8(conf)#ntp update-calendar 1
R5/R8(conf)#do show calendar
06:31:26 UTC Mon Mar 13 1989
R5/R8(conf)#do show calendar
12:24:11 UTC Thu Mar 12 2009

Configuring NTP Broadcasts

With Dell 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

Disabling NTP on an Interface

By default, NTP is enabled on all active interfaces. If you disable NTP on an interface, Dell 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 interface's 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:
798
System Time and Date