3Com 5500G-EI Command Reference Guide - Page 512

512 CHAPTER 12: USING SYSTEM MANAGEMENT COMMANDS system-view System View: return to User View with Ctrl+Z. [SW5500]ntp-service unicast-peer 131.108.22.33 version 3 source-interface Vlan-Interface 1 ntp-service unicast-server Syntax ntp-service unicast-server ip-address [ version number | authentication-keyid keyid | source-interface { interface-name | interface-type interface-number } | priority ] undo ntp-service unicast-server ip-address View System view Parameter ip-address : Specify the IP address of a remote server. version : Define NTP version number. number : NTP version number, ranging from 1 to 3. authentication-keyid : Define authentication key. keyid : Key ID used for transmitting messages to a remote server, ranging from 1 to 4294967295. source-interface : Specify the name of an interface. interface-name : Specify the interface name. When a local device sends an NTP message to a peer, the source IP address of the message is taken from the address of the interface. interface-type : Specify the interface type and determine an interface together with the interface-number parameter. interface-number : Specify the interface number and determine an interface together with the interface-type parameter. priority : Designate a server as the first choice. Description 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. Example Designate the server at 128.108.22.44 to synchronize the local device and use NTP version 3. system-view