HP 6125XLG R2306-HP 6125XLG Blade Switch Network Management and Monitoring Com - Page 43

ntp-service refclock-master, Parameters, Usage guidelines, Examples, Related commands, Syntax, Default

Page 43 highlights

Parameters ip-address: Specifies a multicast IP address, and the default is 224.0.1.1. A multicast server and client must be configured with the same multicast IP address. authentication-keyid keyid: Specifies the key ID to be used for sending multicast messages to multicast clients, where keyid is in the range of 1 to 4294967295. If this option is not specified, the local device cannot synchronize multicast clients enabled with NTP authentication. ttl ttl-number: Specifies the TTL of NTP multicast messages, where ttl-number is in the range of 1 to 255. The default value is 16. version number: Specifies the NTP version, where number is in the range of 1 to 4. The default value is 4. Usage guidelines After you configure this command, the device periodically sends NTP messages to the specified multicast address. If you have configured the device to operate in multicast server mode on an interface with this command, do not add the interface to any aggregate group. To add the interface to an aggregate group, remove the configuration of the command. Examples # Configure the device to operate in multicast server mode and send NTP multicast messages on VLAN-interface 1 to the multicast address 224.0.1.1, using key 4 for encryption, and set the NTP version to 4. system-view [Sysname] interface vlan-interface 1 [Sysname-Vlan-interface1] ntp-service multicast-server 224.0.1.1 version 4 authentication-keyid 4 Related commands ntp-service multicast-client ntp-service refclock-master Use ntp-service refclock-master to configure the local clock as a reference source for other devices. Use undo ntp-service refclock-master to remove the configuration. Syntax ntp-service refclock-master [ ip-address ] [ stratum ] undo ntp-service refclock-master [ ip-address ] Default The device does not use its local clock as a reference clock. Views System view Predefined user roles network-admin 41

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41
Parameters
ip-address
: Specifies a multicast IP address, and the default is 224.0.1.1. A multicast server and client
must be configured with the same multicast IP address.
authentication-keyid
keyid
: Specifies the key ID to be used for sending multicast messages to multicast
clients, where
keyid
is in the range of 1 to 4294967295. If this option is not specified, the local device
cannot synchronize multicast clients enabled with NTP authentication.
ttl
ttl-number
: Specifies the TTL of NTP multicast messages, where
ttl-number
is in the range of 1 to 255.
The default value is 16.
version
number
: Specifies the NTP version, where
number
is in the range of 1 to 4. The default value is
4.
Usage guidelines
After you configure this command, the device periodically sends NTP messages to the specified multicast
address.
If you have configured the device to operate in multicast server mode on an interface with this command,
do not add the interface to any aggregate group. To add the interface to an aggregate group, remove
the configuration of the command.
Examples
# Configure the device to operate in multicast server mode and send NTP multicast messages on
VLAN-interface 1 to the multicast address 224.0.1.1, using key 4 for encryption, and set the NTP version
to 4.
<Sysname> system-view
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] ntp-service multicast-server 224.0.1.1 version 4
authentication-keyid 4
Related commands
ntp-service multicast-client
ntp-service refclock-master
Use
ntp-service refclock-master
to configure the local clock as a reference source for other devices.
Use
undo ntp-service refclock-master
to remove the configuration.
Syntax
ntp-service refclock-master
[
ip-address
] [
stratum
]
undo ntp-service refclock-master
[
ip-address
]
Default
The device does not use its local clock as a reference clock.
Views
System view
Predefined user roles
network-admin