3Com Switch 7750 Configuration Guide Guide

Configuration Example 705
Configuration
Example
NTP Server Mode
Configuration
Network requirements
Configure the local clock of Switch 7750 Family-1 to be the NTP master clock,
with the stratum being 2.
Switch 7750 Family-2 operates in client mode, with Switch 7750 Family-1 as the
time server. Switch 7750 Family-1 operates in server mode automatically.
Network diagram
Figure 180 Network diagram for the NTP server mode configuration
Configuration procedures
Configure Switch 7750 Family-1.
# Set the local clock as the NTP master clock, with the stratum being 2.
<Switch 7750 Family-1> system-view
System View: return to User View with Ctrl+Z.
[Switch 7750 Family-1] ntp-service refclock-master 127.127.1.1 2 ?
The following configurations are for Switch 7750 Family-2.
# View the NTP status of Switch 7750 Family-2 before synchronization.
<Switch 7750 Family-2> display ntp-service status
Service status: enabled
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
Nominal frequence: 99.8562 Hz
Actual frequence: 99.8562 Hz
Clock precision: 2^7
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)
# Configure Switch 7750 Family-1 to be the time server of Switch 7750 Family-2.
<Switch 7750 Family-2> system-view
[Switch 7750 Family-2] ntp-service unicast-server 1.0.1.11
# After the above configuration, Switch 7750 Family-2 is synchronized to Switch
7750 Family-1. View the NTP status of Switch 7750 Family-2.
1. 0.1. 11/24 1. 0.1. 11/24
1.0.1.12/24
Switch 7750 Switch 7750
1. 0.1. 11/24 1. 0.1. 11/24
1.0.1.12/24