H3C Technologies H3C S7500E Series Switches - Manual (Page 84)

3-20
NTP Configuration Examples
Configuring NTP Client/Server Mode
Network requirements
Perform the following configurations to synchronize the time between Device B and Device A:
z The local clock of Device A is to be used as a reference source, with the stratum level of 2.
z Device B works in the client/server mode and Device A is to be used as the NTP server of
Device B.
Figure 3-7 Network diagram for NTP client/server mode configuration
Configuration procedure
1) Configure IP addresses for interfaces (omitted)
2) Configuration on Device A:
# Specify the local clock as the reference source, with the stratum level of 2.
system-view
[DeviceA] ntp-service refclock-master 2
3) Configuration on Device B:
# View the NTP status of Device B before clock synchronization.
display ntp-service status
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
Nominal frequency: 100.0000 Hz
Actual frequency: 100.0000 Hz
Clock precision: 2^18
Clock offset: 0.0000 ms
Root delay: 0.00 ms
Root dispersion: 0.00 ms
Peer dispersion: 0.00 ms
Reference time: 00:00:00.000 UTC Jan 1 1900 (00000000.00000000)
# Specify Device A as the NTP server of Device B so that Device B is synchronized to Device A.
system-view
[DeviceB] ntp-service unicast-server 1.0.1.11
# View the NTP status of Device B after clock 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: 100.0000 Hz