H3C S3100 Series Operation Manual page 700

Operation
Configure the switch to work in the
NTP broadcast server mode
Configuring a switch to work in the NTP broadcast client mode
Table 1-6 Configure a switch to work in the NTP broadcast client mode
Operation
Enter system view
Enter VLAN interface view
Configure the switch to work in the
NTP broadcast client mode
Configuring NTP Multicast Mode
For switches 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 switches working
in the NTP multicast client mode will respond to the NTP messages, so as to start the clock
synchronization.
An H3C S3100 series Ethernet switch can work as a multicast server or a multicast client.
Refer to Table 1-7
Refer to Table 1-8
A multicast server can synchronize multicast clients only after its clock has been synchronized.
An S3100 series switch working in the multicast server mode supports up to 1,024 multicast clients.
Configuring a switch to work in the multicast server mode
Table 1-7 Configure a switch to work in the NTP multicast server mode
Operation
Enter system view
Enter VLAN interface view
Configure the switch to work in the
NTP multicast server mode
ntp-service broadcast-server
[ authentication-keyid key-id |
version number ]*
system-view
interface Vlan-interface vlan-id
ntp-service broadcast-client
for configuring a switch to work in the NTP multicast server mode.
for configuring a switch to work in the NTP multicast client mode.
system-view
interface Vlan-interface vlan-id
ntp-service multicast-server [ ip-address ]
[ authentication-keyid keyid | ttl ttl-number |
version number ]*
Command
Command
Command
1-9
Description
Required
Not configured by default.
Description
—
—
Required
Not configured by default.
Description
—
—
Required
Not configured by
default.