3com WX3000 Manuel D’Utilisation

 

1-7 

Enter system view 

— 

Configure an NTP client 

ntp-service unicast-server { remote-ip | 
server-name } [ authentication-keyid 
key-id | priority | source-interface 
Vlan-interface vlan-id | version 
number ]* 

Required 

By default, the device is 
not configured to work in 
the NTP client mode. 

 

z 

The remote server specified by remote-ip or server-name serves as the NTP server, and the local 

device serves as the NTP client. The clock of the NTP client will be synchronized by but will not 

synchronize that of the NTP server. 

z 

remote-ip cannot be a broadcast address, a multicast address or the IP address of the local clock. 

z 

After you specify an interface for sending NTP messages through the source-interface keyword, 

the source IP address of the NTP message will be configured as the primary IP address of the 

specified interface. 

z 

The device can act as a server to synchronize the clock of other devices only after its clock has 

been synchronized. If the clock of a server has a stratum level lower than or equal to that of a 

client’s clock, the client will not synchronize its clock to the server’s. 

z 

You can configure multiple servers by repeating the ntp-service unicast-server command. The 

client will choose the optimal reference source. 

 

For devices working in the symmetric peer mode, you need to specify a symmetric-passive peer on the 

symmetric-active peer. 

Follow these steps to configure a symmetric-active switch: 

Enter system view 

— 

Specify a symmetric-passive 
peer for the device 

ntp-service unicast-peer 
{ remote-ip | peer-name } 
[ authentication-keyid key-id | 
priority | source-interface 
Vlan-interface vlan-id | 
version number ]* 

Required 

By default, the device is not 
configured to work in the 
symmetric mode.