3Com WX3000 operation manual Configuring NTP Multicast Mode

Configuring the device to work in the NTP broadcast client mode

To do…	Use the command…	Remarks
Enter system view	system-view	—
Enter VLAN interface view	interface Vlan-interface	—
	vlan-id
Configure the device to work in	ntp-service broadcast-client	Required
the NTP broadcast client mode		Not configured by default.

Configuring NTP Multicast Mode

For devices working in the multicast mode, you need to configure both the server and clients. The multicast server periodically sends NTP multicast messages to multicast clients. The devices working in the NTP multicast client mode will respond to the NTP messages, so as to start the clock synchronization.

The device can work as a multicast server or a multicast client.

z

z

A multicast server can synchronize multicast clients only after its clock has been synchronized. The device working in the multicast server mode supports up to 1,024 multicast clients.

Configuring the device to work in the multicast server mode

To do…	Use the command…		Remarks
Enter system view	system-view	—
Enter VLAN interface view	interface Vlan-interface vlan-id		—
Configure the device to work in	ntp-service multicast-server		Required
	[ ip-address] [ authentication-keyid		Not configured by
the NTP multicast server mode
	keyid ttl ttl-number version number ]*		default.

Configuring the device to work in the multicast client mode

To do…		Use the command…	Remarks
Enter system view		system-view	—
Enter VLAN interface view		interface Vlan-interface	—
		vlan-id
Configure the device to work in		ntp-service multicast-client	Required
the NTP multicast client mode	[ ip-address ]		Not configured by default.

1-9