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 Operation Manual

Ethernet switches

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The procedure for configuring NTP authentication on the server is the same as that on the client.

Besides, the client and the server must be configured with the same authentication key.

In NTP server mode and NTP peer mode, you need to associate the specified key with the

corresponding NTP server (symmetric-active peer) on the client (symmetric-passive peer). In these

two modes, multiple NTP servers (symmetric-active peers) may be configured for a client/passive

peer, and therefore, the authentication key is required to determine which NTP server the local

clock is synchronized to.

Configuring Optional NTP Parameters

Complete the following tasks to configure optional NTP parameters:

Configuring the Number of Dynamic Sessions Allowed on the Local

Disabling an Interface from Receiving NTP Messages

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

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.

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.

Use the command...

ntp-service source-interface

Vlan-interface vlan-id

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