Operation Manual – NTP
H3C S3100 Series Ethernet Switches
Chapter 1 NTP Configuration
1-25
III. Configuration procedure
1)
Configure Device B.
# Enter system view.
<DeviceB> system-view
# Enable the NTP authentication function.
[DeviceB] ntp-service authentication enable
# Configure an MD5 authentication key, with the key ID being
42
and the key being
aNiceKey
.
[DeviceB] ntp-service authentication-keyid 42 authentication-mode md5
aNiceKey
# Specify the key 42 as a trusted key.
[DeviceB] ntp-service reliable authentication-keyid 42
# Associate the trusted key with the NTP server (Device A).
[DeviceB] ntp-service unicast-server 1.0.1.11 authentication-keyid 42
After the above configurations, Device B is ready to synchronize with Device A.
Because the NTP authentication function is not enabled on Device A, the clock of
Device B will fail to be synchronized to that of Device A.
2) To synchronize Device B, you need to perform the following configurations on
Device A.
# Enable the NTP authentication function.
[DeviceA] system-view
[DeviceA] ntp-service authentication enable
# Configure an MD5 authentication key, with the key ID being
42
and the key being
aNiceKey
.
[DeviceA] ntp-service authentication-keyid 42 authentication-mode md5
aNiceKey
# Specify the key 42 as a trusted key.
[DeviceA] ntp-service reliable authentication-keyid 42
(After the above configurations, the clock of Device B can be synchronized to that of
Device A.) View the status of Device B after synchronization.
[DeviceB] display ntp-service status
Clock status: synchronized
Clock stratum: 3
Reference clock ID: 1.0.1.11
Nominal frequency: 100.0000 Hz
Actual frequency: 100.1000 Hz
Clock precision: 2^18
