HP 6125XLG R2306-HP 6125XLG Blade Switch Network Management and Monitoring Com - Page 44

ntp-service reliable authentication-keyid, Parameters, Usage guidelines, Examples, Syntax, Default

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Parameters ip-address: IP address of the local clock, which is 127.127.1.u, where u is the NTP process ID in the range of 0 to 3. If you do not specify ip-address, it defaults to 127.127.1.0. stratum: Stratum level of the local clock, in the range of 1 to 15. The default value is 8. A lower stratum level represents a higher clock accuracy. Usage guidelines Usually an NTP server that gets its time from an authoritative time source, such as an atomic clock has stratum 1 and operates as the primary time server to provide time synchronization for other devices in the network. The accuracy of each server is the stratum, with the topmost level (primary servers) assigned as one and each level downwards (secondary servers) in the hierarchy assigned as one greater than the preceding level. If the devices in a network cannot synchronize to an authoritative time source, you can select a device that has a relatively accurate clock from the network, and use the local clock of the device as the reference clock to synchronize other devices in the network. Use this command with caution to avoid time errors. Before you execute the command, HP recommends that you adjust the local system time. Examples # Specify the local clock as the reference source, with the stratum level 2. system-view [Sysname] ntp-service refclock-master 2 ntp-service reliable authentication-keyid Use ntp-service reliable authentication-keyid to specify the created authentication key as a trusted key. Use undo ntp-service reliable authentication-keyid to remove the configuration. Syntax ntp-service reliable authentication-keyid keyid undo ntp-service reliable authentication-keyid keyid Default No trust key is specified. Views System view Predefined user roles network-admin Parameters keyid: Specifies an authentication key number in the range of 1 to 4294967295. Usage guidelines When NTP authentication is enabled, a client can be synchronized only to a server that can provide a trusted authentication key. 42

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42
Parameters
ip-address
: IP address of the local clock, which is 127.127.1.u, where u is the NTP process ID in the range
of 0 to 3. If you do not specify
ip-address
, it defaults to 127.127.1.0.
stratum
: Stratum level of the local clock, in the range of 1 to 15. The default value is 8. A lower stratum
level represents a higher clock accuracy.
Usage guidelines
Usually an NTP server that gets its time from an authoritative time source, such as an atomic clock has
stratum 1 and operates as the primary time server to provide time synchronization for other devices in the
network. The accuracy of each server is the stratum, with the topmost level (primary servers) assigned as
one and each level downwards (secondary servers) in the hierarchy assigned as one greater than the
preceding level.
If the devices in a network cannot synchronize to an authoritative time source, you can select a device that
has a relatively accurate clock from the network, and use the local clock of the device as the reference
clock to synchronize other devices in the network.
Use this command with caution to avoid time errors. Before you execute the command, HP recommends
that you adjust the local system time.
Examples
# Specify the local clock as the reference source, with the stratum level 2.
<Sysname> system-view
[Sysname] ntp-service refclock-master 2
ntp-service reliable authentication-keyid
Use
ntp-service reliable authentication-keyid
to specify the created authentication key as a trusted key.
Use
undo
ntp-service reliable authentication-keyid
to remove the configuration.
Syntax
ntp-service reliable authentication-keyid
keyid
undo ntp-service reliable authentication-keyid
keyid
Default
No trust key is specified.
Views
System view
Predefined user roles
network-admin
Parameters
keyid
: Specifies an authentication key number in the range of 1 to 4294967295.
Usage guidelines
When NTP authentication is enabled, a client can be synchronized only to a server that can provide a
trusted authentication key.