3com S7906E Guide De Référence

 

1-14 

Use the undo ntp-service unicast-peer command to remove the symmetric-passive peer designated 

for the device.  

No symmetric-passive peer is designated for the device by default.  

 

z 

To synchronize the PE to a PE or CE in a VPN, you need to provide vpn-instance 

vpn-instance-name in your command.  

z 

If you include vpn-instance vpn-instance-name in the undo ntp-service unicast-peer command, 

the command will remove the symmetric-passive peer with the IP address of ip-address in the 

specified VPN; if you do not include vpn-instance  vpn-instance-name in this command, the 

command will remove the symmetric-passive peer with the IP address of ip-address in the public 

network.  

 

# Designate the device with the IP address of 10.1.1.1 as the symmetric-passive peer of the device, and 

configure the device to run NTP version 3, and send NTP messages through VLAN-interface 1.  

<Sysname> system-view 

[Sysname] ntp-service unicast-peer 10.1.1.1 version 3 source-interface vlan-interface 1 

ntp-service  unicast-server [ vpn-instance  vpn-instance-name ] { ip-address | server-name  } 

[ authentication-keyid keyid | priority | source-interface interface-type interface-number | version 

number  ] * 

undo ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address | server-name } 

System view 

2: System level 

vpn-instance vpn-instance-name: Specifies a VPN instance by its name, where vpn-instance-name is 

a string of 1 to 31 characters. 

ip-address: IP address of the NTP server. It must be a host address, rather than a broadcast address, a 

multicast address or the IP address of the local clock.  

server-name: Host name of the NTP server, a string of 1 to 20 characters.  

authentication-keyid keyid: Specifies the key ID to be used for sending NTP messages to the NTP 

server, where keyid is in the range of 1 to 4294967295.  

priority: Specifies this NTP server as the first choice under the same condition.