3com 4210 PWR 9-Port 3CR17341-91-ME User Manual

[DeviceB] display ntp-service sessions

 

     source        reference       stra reach poll  now offset  delay disper

 

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[12345]1.0.1.11    127.127.1.0     2    1   64    1   350.1   15.1    0.0

 

note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured   

Total associations :  1  

■

The local clock of Device A is set as the NTP master clock, with the clock 
stratum level of 2.

■

Device C (a Switch 4210) uses Device A as the NTP server, and Device A works 
in server mode automatically.

■

The local clock of Device B is set as the NTP master clock, with the clock 
stratum level of 1. Set Device C as the peer of Device B.

Figure 115   Network diagram for NTP peer mode configuration

1 Configure Device C.

# Set Device A as the NTP server.

<DeviceC> system-view

 

[DeviceC] ntp-service unicast-server 3.0.1.31 

2 Configure Device B (after the Device C is synchronized to Device A).

# Enter system view.

<DeviceB> system-view 

# Set Device C as the peer of Device B.

[DeviceB] ntp-service unicast-peer 3.0.1.33 

Device C and Device B are symmetric peers after the above configuration. Device B 
works in symmetric active mode, while Device C works in symmetric passive mode. 
Because the stratum level of the local clock of Device B is 1, and that of Device C is 
3, the clock of Device C is synchronized to that of Device B.

View the status of Device C after the clock synchronization.

[DeviceC] display ntp-service status

 

 Clock status: synchronized

 

Device A

Device B

Device C

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