3com 4500 PWR 50-PORT User Manual

C

HAPTER

 12: U

SING

 S

YSTEM

 M

ANAGEMENT

 C

OMMANDS

Use the 

 to configure an Ethernet 

switch to operate in the NTP broadcast server mode and send NTP broadcast 
messages through the current interface. 

Use the 

 command to remove the 

configuration.

By default, no Ethernet switch operates in the NTP broadcast server mode.

Configure the switch to send NTP broadcast messages through Vlan-interface1 
and use authentication key 4 for encryption, and set the NTP version number to 3.

<SW4500> system-view

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

[SW4500] interface Vlan-interface 1

[SW4500-Vlan-interface1] ntp-service broadcast-server 

VLAN interface view

None

Use the ntp-service in-interface disable command to disable the interface from 
receiving NTP messages. 

Use the undo ntp-service in-interface disable command to enable the interface to 
receive NTP messages. 

By default, the interface can receive NTP messages. 

Disable Vlan-interface1 from receiving NTP messages. 

<SW4500> system-view

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

[SW4500] interface Vlan-interface 1

[SW4500-Vlan-interface1] ntp-service in-interface disable