3com 4500 PWR 26-PORT Manuel D’Utilisation

C

HAPTER

 12: U

SING

 S

YSTEM

 M

ANAGEMENT

 C

OMMANDS

Use the 

command to remove the 

configuration.

If you do not want the IP addresses of the other interfaces on the local device to 
be the destination addresses of response messages, you can use this command to 
specify a specific interface to send all NTP packets. In this way, the IP address of 
the interface is the source IP address of all NTP messages sent by the local device.

Specify the source IP addresses of all sent NTP messages as the IP address of 
Vla-interface1.

<SW4500> system-view

System View: return to User View with Ctrl+Z. 

[SW4500] ntp-service source-interface Vlan-interface 1

remote-ip | peer-name } [ 

key-id | priority | source-interface 

vlan-id | version number ]*

remote-ip | peer-name }

System view

: IP address of the NTP peer. This argument cannot be a broadcast 

address, a multicast address, or the IP address of the local reference clock.

: Peer host name, a string comprising 1 to 20 characters.

: Specifies the key ID used for sending messages 

to the peer. The key-id argument ranges from 1 to 4294967295. You do not need 
to configure authentication-keyid key-id if authentication is not required.

priority: Specifies the peer identified by the remote-ip argument as the preferred 
peer for synchronization. 

: Specifies an interface whose IP 

address serves as the source IP address of NTP message sent to the peer.

: Specifies the NTP version number. The version number ranges 

from 1 to 3 and defaults to 3.

Use the 

 command to configure an Ethernet switch 

to be an active NTP peer.

Use the

 command to remove the 

configuration.