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To specify the source interface for NTP messages:
To do… Use the command… Remarks
1. Enter system view.
system-view —
2. Specify the source interface
for NTP messages.
ntp-service source-interface
interface-type interface-number
Required.
By default, no source interface is
specified for NTP messages, and
the system uses the IP address of
the interface determined by the
matching route as the source IP
address of NTP messages.
CAUTION:
• If you have specified the source interface for NTP messages in the ntp-service unicast-server or ntp-
service unicast-peer command, the interface specified in the ntp-service unicast-server or ntp-
service unicast-peer command serves as the source interface of NTP messages.
• If you have configured the ntp-service broadcast-server or ntp-service multicast-server command,
the source interface of the broadcast or multicast NTP messages is the interface configured with the
respective command.
• If the specified source interface for NTP messages is down, the source IP address for an NTP messa
e
that is sent out is the primary IP address of the outgoing interface of the NTP message.
Disabling an interface from receiving NTP messages
When NTP is enabled, NTP messages can be received from all interfaces by default, and you can
disable an interface from receiving NTP messages through the following configuration.
To do…
Use the command… Remarks
1. Enter system view.
system-view —
2. Enter interface view.
interface interface-type interface-
number
—
3. Disable the interface from
receiving NTP messages.
ntp-service in-interface disable
Required.
An interface is enabled to receive
NTP messages by default.
Configuring the maximum number of dynamic sessions allowed
To do… Use the command… Remarks
1. Enter system view.
system-view —
2. Configure the maximum
number of dynamic sessions
allowed to be established
locally.
ntp-service max-dynamic-sessions
number
Required.
100 by default.
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