H3C S3100 8C SI User Manual

Operation Manual – NTP
H3C S3100 Series Ethernet Switches Chapter 1 NTP Configuration
1-14
1.5.2 Configuration Procedure
I. Configuring NTP authentication on the client
Table 1-11 Configure NTP authentication on the client
Operation Command Description
Enter system view
system-view
—
Enable the NTP
authentication function
ntp-service
authentication enable
Required
Disabled by default.
Configure the NTP
authentication key
ntp-service
authentication-keyid
key-id
authentication-model
md5 value
Required
By default, no NTP
authentication key is
configured.
Configure the specified key
as a trusted key
ntp-service reliable
authentication-keyid
key-id
Required
By default, no trusted
key is configured.
Configure on the
client in the
server/client
mode
ntp-service
unicast-server { remote-ip |
server-name }
authentication-keyid
key-id
Associ
ate the
specifi
ed key
with
the
corres
pondin
g NTP
server
Configure on the
symmetric-active
peer in the
symmetric peer
mode
ntp-service unicast-peer
{ remote-ip | peer-name }
authentication-keyid
key-id
Required
For the client in the
NTP
broadcast/multicast
mode, you just need to
associate the specified
key with the client on
the corresponding
server.
 Note:
NTP authentication requires that the authentication keys configured for the server and
the client be the same. Besides, the authentication keys must be trusted keys.
Otherwise, the clock of the client cannot be synchronized with that of the server.
II. Configuring NTP authentication on the server
Table 1-12 Configure NTP authentication on the server
Operation Command Description
Enter system view
system-view
—
Enable NTP
authentication
ntp-service
authentication enable
Required
Disabled by default.

H3C S3100 8C SI Specifications

General

Brand	H3C
Model	S3100 8C SI
Category	Switch
Language	English