3Com 5500G-EI Command Reference Guide - Page 506
Parameter, Description, Example, ntp-service, broadcast-server, Syntax
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506 CHAPTER 12: USING SYSTEM MANAGEMENT COMMANDS undo ntp-service broadcast-client View VLAN interface view Parameter None. Description Use the ntp-service broadcast-client command to configure NTP broadcast client mode. Use the undo ntp-service broadcast-client command to disable the NTP broadcast client mode. By default, the NTP broadcast client mode is disabled. Designate an interface on the local Switch to receive NTP broadcast messages and operate in broadcast client mode. The local Switch listens to the broadcast from the server. When it receives the first broadcast packet, it starts a brief client/server mode to switch messages with a remote server for estimating the network delay. Thereafter, the local Switch enters broadcast client mode and continues listening to the broadcast and synchronizes the local clock according to the arrived broadcast message. Example Configure to receive NTP broadcast packets via Vlan-Interface1. system-view System View: return to User View with Ctrl+Z. [SW5500]interface vlan-interface1 [SW5500-Vlan-Interface1]ntp-service broadcast-client ntp-service broadcast-server Syntax ntp-service broadcast-server [ authentication-keyid keyid ] [ version number ] undo ntp-service broadcast-server View VLAN interface view Parameter authentication-keyid: Specify the authentication key. keyid: Key ID used in broadcast, ranging from 1 to 4294967295. version: Define NTP version number. number: NTP version number, ranging from 1 to 3. Description Use the ntp-service broadcast-server command to configure NTP broadcast server mode. Use the undo ntp-service broadcast-server command to disable the NTP broadcast server mode. By default, the broadcast service is disabled and number defaults to 3.