Juniper JUNOSE 11.3, Configuration Manual

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Use to enable broadcast server on an interface to send NTP broadcast messages
periodically.
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The server sends the NTP broadcast messages to the local network broadcast address
(255.255.255.255).
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Example—In this example, the interface supports NTP software, version 4, and a poll
interval of 5 (32 seconds) for broadcasting NTP messages.
host1:boston(config-if)# ntp broadcast version 4 5
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Use the no version to prevent the interface from sending NTP broadcast messages.
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See ntp broadcast.
ntp master
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Use to specify the stratum number of a virtual router you configured as an NTP server
•
By default, the stratum number is set to the stratum number of the master plus one.
CAUTION: Although you can specify a stratum number of 1, the system
does not support stratum 1 service. The system can synchronize only with
an NTP server, and not directly with an atomic clock or radio clock.
•
Specify a stratum number for the system in the range 1 – 15. A stratum n server is n
hops from an accurate time source.
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Example
host1:boston(config)# ntp master
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Use the no version to restore the default stratum number.
•
See ntp master.
ntp server enable
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Use to enable a virtual router to act as an NTP server.
•
Example
host1:boston(config)# ntp server enable
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Use the no version to prevent a virtual router from acting as an NTP server.
•
See ntp server enable.
Configuration Examples
The following examples show how to configure the system as an NTP client and an NTP
server.
Example 1 NTP communications are established on the virtual router boston. The system is a client
of the NTP server with IP address 172.16.5.1.
host1# virtual-router boston
517 Copyright © 2010, Juniper Networks, Inc.
Chapter 10: Configuring the System Clock