Operation Manual – NTP
H3C S3610&S5510 Series Ethernet Switches
Chapter 1 NTP Configuration
1-11
I. 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 device to
work in the NTP
broadcast client mode
ntp-service
broadcast-client
Required
II. 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 device to
work in the NTP
broadcast server mode
ntp-service
broadcast-server
[
authentication-keyid
keyid
|
version
number
]*
Required
Note:
A broadcast server can synchronize broadcast clients only after its clock has been
synchronized.
1.3.4 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 devices 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.