1-9
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
the NTP broadcast client mode
ntp-service broadcast-client
Required
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 A multicast server can synchronize multicast clients only after its clock has been synchronized.
z 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
the NTP multicast server mode
ntp-service multicast-server
[ ip-address ] [ authentication-keyid
keyid | ttl ttl-number | version number ]*
Required
Not configured by
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
the NTP multicast client mode
ntp-service multicast-client
[ ip-address ]
Required
Not configured by default.
