H3C Technologies H3C S3100 Series Switches - Manual (Page 478)

Operation Manual – NTP
H3C S3100-52P Ethernet Switch Chapter 1 NTP Configuration
1-16
II. Network diagram
H3C 2
H3C 3
3.0.1.
3.0.1.32/24
31/24
3.0.1.33/24
S3100-52P
H3C 2
H3C 3
3.0.1.
3.0.1.32/24
31/24
3.0.1.33/24
S3100-52P
Figure 1-7
Network diagram for NTP peer mode configuration
III. Configuration procedure
1) Configure the S3100-52P switch.
# Set H3C2 to the NTP server.
system-view
[S3100-52P] ntp-service unicast-server 3.0.1.31
2) Configure H3C3 (after the S3100-52P Ethernet switch is synchronized to H3C2).
# Enter system view.
system-view
[H3C3]
# Set the S3100-52P Ethernet switch to the peer of H3C3.
[H3C3] ntp-service unicast-peer 3.0.1.33
The S3100-52P Ethernet switch and H3C3 are a pair of peers. H3C3 operates in active
peer mode, while the S3100-52P Ethernet switch operates in passive peer mode.
Because the stratum level of the local clock of H3C3 is 1, and that of the S3100-52P
Ethernet switch is 3, the S3100-52P Ethernet switch is synchronized to Qudiway3.
View the status of the S3100-52P Ethernet switch after synchronization.
[S3100-52P] display ntp-service status
Clock status: synchronized
Clock stratum: 2
Reference clock ID: 3.0.1.32
Nominal frequency: 250.0000 Hz
Actual frequency: 249.9992 Hz
Clock precision: 2^19
Clock offset: 0.66 ms
Root delay: 27.47 ms
Root dispersion: 208.39 ms