Configuring Optional Ntp Parameters; Configuring An Interface On The Local Switch To Send Ntp Messages; Configuring The Number Of Dynamic Sessions Allowed On The Local Switch - H3C S5100-SI Series Operation Manual

Operation Manual – NTP
H3C S5100-SI/EI Series Ethernet Switches

1.6 Configuring Optional NTP Parameters

Complete the following tasks to configure optional NTP parameters:
Configuring an Interface on the Local Switch to Send NTP
Messages
Configuring the Number of Dynamic Sessions Allowed on
the Local Switch
Disabling an Interface from Receiving NTP Messages

1.6.1 Configuring an Interface on the Local Switch to Send NTP Messages

Follow these steps to configure an interface on the local switch to send NTP messages:
Enter system view
Configure an interface on
the local switch to send
NTP messages
Caution:
If you have specified an interface in the ntp-service unicast-server or ntp-service
unicast-peer command, this interface will be used for sending NTP messages.

1.6.2 Configuring the Number of Dynamic Sessions Allowed on the Local Switch

A single device can have a maximum of 128 associations at the same time, including
static associations and dynamic associations. A static association refers to an
association that a user has manually created by using an NTP command, while a
dynamic association is a temporary association created by the system during operation.
A dynamic association will be removed if the system fails to receive messages from it
over a specific long time.
In the server/client mode, for example, when you carry out a command to synchronize
the time to a server, the system will create a static association, and the server will just
respond passively 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
Task
To do...
system-view
ntp-service
source-interface
Vlan-interface vlan-id
Use the command...
1-16
Chapter 1 NTP Configuration
Remarks
Optional
Optional
Optional
Remarks
—
Required