ntp (network time protocol) command

This command configures and displays the management-module network time protocol (NTP) settings.

Table 1. ntp command
Function	What it does	Command	Valid targets
Display management module NTP settings	Displays the NTP settings for the specified I/O module. Possible return values are: -en state (enabled, disabled) -i ipaddress/hostname (IP address or hostname of the NTP server) -f update_frequency (NTP update frequency, in minutes) -v3en state (enabled, disabled) -v3 key_info (NTP v3 authentication entry)	`ntp`	`-T system:mm[x]` where x is the primary management-module bay number.
Enable / disable NTP	Enables or disables NTP for the management-module.	`ntp -en` state where state is enabled or disabled. This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.
NTP server IP address or hostname - set	Checks syntax and sets the IP address or hostname of the NTP server.	`ntp -i` ipaddress/hostname where ipaddress/hostname is the IP address or hostname of the NTP server. This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.
NTP update frequency - set	Sets how often the management module clock is automatically updated by the NTP server.	`ntp -f` time where time is the NTP update frequency, in minutes with a maximum value of 45000. This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.
NTP - Enable / disable V3 authentication	Enables or disables V3 authentication between the management-module and the NTP server. Note: The NTP server authentication key must be set, using the ntp -v3 command option, before enabling V3 authentication.	`ntp -v3en` state where state is `enabled` or `disabled`. This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.
NTP server authentication key - set	Sets the v3 authentication key that the management module uses to access the NTP server. The authentication key contains the following values: Key index: An NTP server can be configured with one or more key entries. The key index specifies which key the server expects the client to authenticate with. Key type: The advanced management module supports only the MD5 key type. Key: The key is an 8-character ASCII string.	`ntp -v3` key_index key_type key where: key_index is from 1 to 65535, inclusive. If you enter a value outside this range, an error will be displayed. key_type is `M` (MD5). key is a 8-character ASCII string. This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.
NTP clock- synchronize	Synchronizes the management-module clock with the NTP server. (You must configure a valid NTP server before you can synchronize.)	`ntp -synch` This command can only be run by users who have one or more of the following command authorities: Supervisor Chassis configuration See Commands and user authority for additional information.	`-T system:mm[x]` where x is the primary management-module bay number.

Example:

To display NTP settings for the management module, while management module 2 is set as the persistent command environment, at the system:mm[2]> prompt, type

ntp

The following example shows the information that is returned from this command:

               system:mm[2]> ntp
-en enabled
-i timeserver
-f 5
-v3en disabled
-v3 Not configured
NTP is disabled.
system:mm[2]>