•
Use to disable the auto-upgrade feature of the system’s timing selector.
•
The system starts out by setting the operational timing selector to the administratively
configured selector. See the
timing select
command.
•
Example
host1(config)#
timing disable-auto-upgrade
•
Use the
no
version to restore the factory default, which is auto-upgrade enabled.
•
See timing disable-auto-upgrade.
timing select
•
Use to specify which of the configured timing sources is used by default.
•
Primary timing source is preferred over secondary, and secondary is preferred over
tertiary. See the
timing source
command.
•
If you enable the auto-upgrade feature, the system does not try to upgrade beyond
the administratively configured selector.
•
Example
host1(config)#
timing select secondary
•
There is no
no
version.
•
See timing select.
timing source
•
Use to specify how the SRP module exchanges timing signals with an interface.
•
You can specify primary, secondary, and tertiary timing sources.
•
You can specify one external source received on an I/O module or IOA other than the
SRP I/O module or SRP IOA.
•
You can specify two or more internal sources or external sources received through the
SRP I/O module or SRP IOA external timing ports.
•
On the E120 and E320 routers, you can specify sonet for only two of the available three
timing sources (primary, secondary, or tertiary).
•
The available sources to choose are:
•
ds1—DS1 interface
•
ds3—DS3 interface
•
e1—E1 interface
•
e3—E3 interface
•
sonet—SONET interface
•
internal—Internal system controller (SC) oscillator
•
line—External timing input on SRP module
Copyright © 2010, Juniper Networks, Inc.
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JunosE 11.3.x System Basics Configuration Guide
Summary of Contents for JUNOSE 11.3
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