3com S7906E Guida Di Riferimento
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.
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To synchronize the PE to a PE or CE in a VPN, you need to provide vpn-instance
vpn-instance-name in your command.
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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.
Examples
# 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
Syntax
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 }
View
System view
Default Level
2: System level
Parameters
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.