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

103
Default
The device does not operate in any NTP association mode.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-multicast-address: Specifies an IPv6 multicast IP address in the range of FFxy::/16 (FFx0::/16,
FFx1::/16, FFx2::/16, and FF0y::/16 are not included), where x and y represent any hexadecimal
number from 0 through F. An IPv6 multicast client and server must be configured with the same multicast
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 clients enabled with NTP authentication.
ttl ttl-number: Specifies the TTL of NTP multicast messages. The value range for the ttl-number argument
is 1 to 255, and the default is 16.
Usage guidelines
After you configure this command, the device periodically sends NTP messages to the specified IPv6
multicast address.
Examples
# Configure the device to operate in IPv6 multicast server mode and send IPv6 NTP multicast messages
on Ethernet 1/1 to the multicast address FF21::1, using key 4 for encryption.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] ntp-service ipv6 multicast-server ff21::1 authentication-keyid 4
Related commands
ntp-service ipv6 multicast-client
ntp-service ipv6 source
Use ntp-service ipv6 source to specify the source interface for IPv6 NTP messages.
Use undo ntp-service ipv6 source to restore the default.
Syntax
ntp-service ipv6 source interface-type interface-number
undo ntp-service ipv6 source
Default
No source interface is specified for IPv6 NTP messages. The device automatically selects the source IP
address for IPv6 NTP messages. For more information, see RFC 3484.
Views
System view
Predefined user roles
network-admin