System Management
Basic System Configuration Guide 525
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A:ALA-7#
A:ALA-12# show system switch-fabric
sync-if-timing
Syntax sync-if-timing
Context show>system
Description This command displays synchronous interface timing operational information.
Output The following table describes sync-if-timing output fields.
Table 70: System Timing Output
Label Description
System Status CPM
A/B
Indicates the present status of the synchronous timing equipment
subsystem (SETS).
Not Present — Only shown on systems without central clocks (7450 ESS-
1)
Master Freerun — The clock is in free-run because it hasn’t had a
qualified input reference to lock to
Master Holdover — The clock was locked to an input reference but has
lost all qualified input references and is in holdover.
Master Locked — The clock is locked to an input reference
Acquiring — The clock is training to a qualified input reference.
Reference Input Mode Revertive
Indicates that for a re-validated or a newly validated reference source
which has a higher priority than the currently selected reference has
reverted to the new reference source.
Non-revertive
The clock cannot revert to a higher priority clock if the current clock goes
offline.
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