3com 8807 Reference Guide

ntp-service unicast-server ip-address [ version number ] [ 
authentication-keyid keyid ] [ source-interface interface-type interface-number 
] [ priority ]*

undo ntp-service unicast-server ip-address

System view

ip-address: IP address of a remote server.

version: Defines NTP version number.

number: NTP version number, ranging from 1 to 3.

authentication-keyid: Defines authentication key.

keyid: Key ID used for transmitting messages to a remote server, ranging from 1 to 
4294967295.

source-interface: Specifies the name of an interface, the interface can be VLAN 
interface and Loopback interface.

interface-type: Specifies the interface type and determine an interface together 
with the interface-number argument.

interface-number: Specifies the interface number and determine an interface 
together with the interface-type argument.

When the local switch sends an NTP packet to the timer server, the source IP 
address carried in the packet is obtained from the interface. Currently, only VLAN 
interfaces and Loopback interfaces are supported.

priority: Designates a server as the first choice.

Use the ntp-service unicast-server command to configure NTP server mode.

Use the undo ntp-service unicast-server command to disable NTP server mode.

By default, version number number defaults to 3, the authentication is disabled, 
and the local server is not the first choice.

The command announces to use the remote server at ip-address as the local time 
server. ip-address specifies a host address other than an IP address of broadcast, 
multicast, or reference clock. By operating in client mode, a local device can be 
synchronized by a remote server, but not synchronize any remote server.

# Designate the server at 128.108.22.44 to synchronize the local device and use 
NTP version 3.