H3C S3100 8C SI User Manual

Operation Manual – NTP
H3C S3100 Series Ethernet Switches Chapter 1 NTP Configuration
1-16
1.6.1 Configuring an Interface on the Local Switch to Send NTP messages
Table 1-14 Configure an interface on the local switch to send NTP messages
Operation Command Description
Enter system view
system-view
—
Configure an interface on
the local switch to send
NTP messages
ntp-service
source-interface
Vlan-interface vlan-id
Required
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 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.
Table 1-15 Configure the number of dynamic sessions allowed on the local switch
Operation Command Description
Enter system view
system-view
—
Configure the maximum
number of dynamic sessions
that can be established on
the local switch
ntp-service
max-dynamic-sessio
ns number
Required
By default, up to 100
dynamic sessions can be
established locally.

H3C S3100 8C SI Specifications

General

Brand	H3C
Model	S3100 8C SI
Category	Switch
Language	English