3com S7906E 설치 설명서

 

1-17 

Figure 1-7 Network diagram for NTP client/server mode configuration 

 

 

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 refclock-master 2 

2)  Configuration on Device B:  

# View the NTP status of Device B before clock synchronization.  

<DeviceB> 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.  

<DeviceB> 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 

 Clock precision: 2^18 

 Clock offset: 0.0000 ms 

 Root delay: 31.00 ms 

 Root dispersion: 1.05 ms 

 Peer dispersion: 7.81 ms 

 Reference time: 14:53:27.371 UTC Sep 19 2005 (C6D94F67.5EF9DB22) 

As shown above, Device B has been synchronized to Device A, and the clock stratum level of Device B 

is 3, while that of Device A is 2.  

# View the NTP session information of Device B, which shows that an association has been set up 

between Device B and Device A.