Operation Manual – NTP
H3C S3610&S5510 Series Ethernet Switches
Chapter 1 NTP Configuration
1-27
II. Network diagram
Figure 1-11
Network diagram for configuration of NTP server/client mode with
authentication
III. Configuration procedure
1)
Configuration on Device A:
# Specify the local clock as the reference source, with the stratum level of 2.
<DeviceA> system-view
[DeviceA] ntp-service refclcok-master 2
2)
Configuration on Device B:
<DeviceB> system-view
# Enable NTP authentication on Device B.
[DeviceB] ntp-service authentication enable
# Set an authentication key.
[DeviceB] ntp-service authentication-keyid 42 authentication-mode md5
aNiceKey
# Specify the key as key as a trusted key.
[DeviceB] ntp-service reliable authentication-keyid 42
# Specify Device A as the NTP server.
[DeviceB] ntp-service unicast-server 1.0.1.11 authentication-keyid 42
Before Device B can synchronize its clock to that of Device A, you need to enable NTP
authentication for Device A.
Perform the following configuration on Device A:
# Enable NTP authentication.
[DeviceA] ntp-service authentication enable
# Set an authentication key.
[DeviceA] ntp-service authentication-keyid 42 authentication-mode md5
aNiceKey
# Specify the key as key as a trusted key.
[DeviceA] ntp-service reliable authentication-keyid 42
# View the NTP status of Device B after clock synchronization.
[DeviceB] display ntp-service status
Clock status: synchronized