H3C S3100 8C SI User Manual

Operation Manual – NTP
H3C S3100 Series Ethernet Switches Chapter 1 NTP Configuration
1-11
 Note:
z A multicast server can synchronize multicast clients only after its clock has been
synchronized.
z An S3100 series switch working in the multicast server mode supports up to 1,024
multicast clients.
I. 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 Command Description
Enter system view
system-view
—
Enter VLAN interface view
interface Vlan-interface vlan-id
—
Configure the switch 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.
II. Configuring a switch to work in the multicast client mode
Table 1-8 Configure a switch to work in the NTP multicast client mode
Operation Command Description
Enter system view
system-view
—
Enter VLAN interface view
interface Vlan-interface
vlan-id
—
Configure the switch to
work in the NTP multicast
client mode
ntp-service
multicast-client
[ ip-address ]
Required
Not configured by default.
1.4 Configuring Access Control Right
With the following command, you can configure the NTP service access-control right to
the local switch for a peer device. There are four access-control rights, as follows:
z query: Control query right. This level of right permits the peer device to perform
control query to the NTP service on the local device but does not permit the peer
device to synchronize its clock to the local device. The so-called “control query”
refers to query of state of the NTP service, including alarm information,
authentication status, clock source information, and so on.

H3C S3100 8C SI Specifications

General

Brand	H3C
Model	S3100 8C SI
Category	Switch
Language	English