Configuring ntp broadcast mode, Configuring a broadcast client, Configuring the broadcast server – H3C Technologies H3C WX6000 Series Access Controllers User Manual
Page 77: Configuring ntp multicast mode, Configuring a multicast client
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Configuring NTP Broadcast Mode
The broadcast server periodically sends NTP broadcast messages to the broadcast address
255.255.255.255. After receiving the messages, the AC working in NTP broadcast client mode sends a
reply and synchronizes its local clock.
For ACs working in the broadcast mode, you need to configure both the server and clients. Because an
interface needs to be specified on the broadcast server for sending NTP broadcast messages and an
interface also needs to be specified on each broadcast client for receiving broadcast messages, the
NTP broadcast mode can be configured only in the specific interface view.
Configuring a broadcast client
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
Required
Enter the interface used to receive
NTP broadcast messages.
Configure the AC to work in the
NTP broadcast client mode
ntp-service broadcast-client Required
Configuring the broadcast server
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
Enter the interface used to send
NTP broadcast messages.
Configure the AC to work in the
NTP broadcast server mode
ntp-service broadcast-server
[ authentication-keyid keyid |
version number ] *
Required
A broadcast server can synchronize broadcast clients only after its clock has been synchronized.
Configuring NTP Multicast Mode
The multicast server periodically sends NTP multicast messages to multicast clients, which send replies
after receiving the messages and synchronize their local clocks.
For ACs working in the multicast mode, you need to configure both the server and clients. The NTP
multicast mode must be configured in the specific interface view.
Configuring a multicast client
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
Enter the interface used to receive
NTP multicast messages.