Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X User Manual

■ 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
254 ■ Configuring Timing
JUNOSe 11.1.x System Basics Configuration Guide

Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Specifications

General

Brand	Juniper
Model	SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X
Category	Software
Language	English