HP MSR2000/3000/4000 Router Series Network Management and Monitoring Command Reference

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Parameters
ip-address: Specifies a multicast IP address in the range of 224.0.1.0 to 239.255.255.255. 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. The value range for the number argument is 1 to 4, and the
default is 4.
Usage guidelines
After you configure this command, the device periodically sends NTP messages to the specified multicast
address.
Examples
# Configure the device to operate in multicast server mode and send NTP multicast messages on Ethernet
1/1 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 ethernet 1/1
[Sysname-Ethernet1/1] 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
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, i t d e f a u l t s t o 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.