3com 4210 PWR 9-Port 3CR17341-91-ME ユーザーズマニュアル

upon the receipt of a message, rather than creating an association (static or 
dynamic). In the symmetric mode, static associations will be created at the 
symmetric-active peer side, and dynamic associations will be created at the 
symmetric-passive peer side; In the broadcast or multicast mode, static 
associations will be created at the server side, and dynamic associations will be 
created at the client side.

After the above configurations, you can execute the display commands in any 
view to display the running status of switch, and verify the effect of the 
configurations.

■

The local clock of Device A (a switch) is to be used as a master clock, with the 
stratum level of 2.

■

Device A is used as the NTP server of Device B (a Switch 4210)

Table 295   Configure the number of dynamic sessions allowed on the local switch

Enter system view 

system-view 

- 

Configure the maximum 
number of dynamic sessions 
that can be established on the 
local switch 

ntp-service 
max-dynamic-sessions 
number 

Required

By default, up to 100 dynamic 
sessions can be established 
locally.

Table 296   Disable an interface from receiving NTP messages

Enter system view 

system-view 

- 

Enter VLAN interface view 

interface Vlan-interface 
vlan-id 

- 

Disable an interface from 
receiving NTP messages 

ntp-service in-interface 
disable 

Required

By default, a VLAN interface 
receives NTP messages.

Table 297   Display NTP configuration

Display the status of NTP 
services 

display ntp-service status 

Available in any view 

Display the information about 
the sessions maintained by 
NTP 

display ntp-service sessions 
[ verbose ]

Display the brief information 
about NTP servers along the 
path from the local device to 
the reference clock source