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

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Usage guidelines
When you specify a passive peer for the device, the device and its passive peer can be synchronized to
each other. If their clocks are in synchronized state, the clock with a high stratum level is synchronized to
the clock with a lower stratum level.
To synchronize the PE to a PE or CE in a VPN, provide vpn-instance vpn-instance-name in your
command.
If you include vpn-instance vpn-instance-name in the undo ntp-service unicast-peer command, the
command removes the symmetric-passive peer with the IP address of ip-address in the specified VPN. If
you do not include vpn-instance vpn-instance-name in this command, the command removes the
symmetric-passive peer with the IP address of ip-address in the public network.
Examples
# Specify the device with the IP address of 10.1.1.1 as the symmetric-passive peer of the local device,
configure the local device to run NTP version 4, and specify the source interface of NTP messages as
Ethernet 1/1.
<Sysname> system-view
[Sysname] ntp-service unicast-peer 10.1.1.1 version 4 source-interface ethernet 1/1
Related commands
• ntp-service authentication enable
• ntp-service authentication-keyid
• ntp-service reliable authentication-keyid
ntp-service unicast-server
Use ntp-service unicast-server to specify an NTP server for the device.
Use undo ntp-service unicast-server to remove an NTP server specified for the device.
Syntax
ntp-service unicast-server { ip-address | server-name } [ vpn-instance vpn-instance-name ]
[ authentication-keyid keyid | priority | source interface-type interface-number | version number ] *
undo ntp-service unicast-server { ip-address | server-name } [ vpn-instance vpn-instance-name ]
Default
No NTP server is specified for the device.
Views
System view
Predefined user roles
network-admin
Parameters
ip-address: Specifies an IP address of the NTP server. It must be a unicast address, rather than a
broadcast address, a multicast address or the IP address of the local clock.
server-name: Specifies a host name of the NTP server, a case-insensitive string of 1 to 255 characters.