HP 6125XLG R2306-HP 6125XLG Blade Switch Network Management and Monitoring Con - Page 33

Configuring the local clock as a reference source, Displaying and maintaining NTP

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A single device can have a maximum of 128 concurrent associations, including static associations and dynamic associations. Perform this task to restrict the number of dynamic associations to prevent dynamic associations from occupying too many system resources. To configure the maximum number of dynamic associations: Step 1. Enter system view. 2. Configure the maximum number of dynamic sessions allowed to be established. Command system-view ntp-service max-dynamic-sessions number Remarks N/A By default, the command can establish up to 100 dynamic sessions. Configuring the local clock as a reference source Follow these guidelines when you configure the local clock as a reference source: • After you configure the local clock as a reference source, the local clock is synchronized, and can operate as a time server to synchronize other devices in the network. If the local clock is incorrect, time errors may occur. Use this feature with caution. • Before you configure this feature, adjust the local system time to make sure it is accurate. • When you configure the system time and NTP at the same time, the device uses the time synchronized from the NTP server as the system time. To configure the local clock as a reference source: Step 1. Enter system view. Command system-view 2. Configure the local clock as a ntp-service refclock-master reference source. [ ip-address ] [ stratum ] Remarks N/A By default, the device does not use the local clock as a reference source. Displaying and maintaining NTP Execute display commands in any view. Task Command Display information about NTP service status. display ntp-service status Display information about IPv4 NTP associations. display ntp-service sessions [ verbose ] Display information about IPv6 NTP associations. display ntp-service ipv6 sessions [ verbose ] Display brief information about the NTP servers from the local device back to the primary reference source. display ntp-service trace 27

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27
A single device can have a maximum of 128 concurrent associations, including static associations and
dynamic associations.
Perform this task to restrict the number of dynamic associations to prevent dynamic associations from
occupying too many system resources.
To configure the maximum number of dynamic associations:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the maximum
number of dynamic sessions
allowed to be established.
ntp-service max-dynamic-sessions
number
By default, the command can
establish up to 100 dynamic
sessions.
Configuring the local clock as a reference source
Follow these guidelines when you configure the local clock as a reference source:
•
After you configure the local clock as a reference source, the local clock is synchronized, and can
operate as a time server to synchronize other devices in the network. If the local clock is incorrect,
time errors may occur. Use this feature with caution.
•
Before you configure this feature, adjust the local system time to make sure it is accurate.
•
When you configure the system time and NTP at the same time, the device uses the time
synchronized from the NTP server as the system time.
To configure the local clock as a reference source:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the local clock as a
reference source.
ntp-service refclock-master
[
ip-address
] [
stratum
]
By default, the device does not use
the local clock as a reference
source.
Displaying and maintaining NTP
Execute
display
commands in any view.
Task
Command
Display information about NTP service status.
display ntp-service status
Display information about IPv4 NTP associations.
display ntp-service sessions
[
verbose
]
Display information about IPv6 NTP associations.
display ntp-service ipv6 sessions
[
verbose
]
Display brief information about the NTP servers from
the local device back to the primary reference source.
display ntp-service trace