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minimum-quality

 

Syntax

Hierarchy Level

Hierarchy level [edit chassis synchronization] added for ACX710 in Junos OS Release 20.2R1.

Release Information

Statement introduced in Junos OS Release 12.3.

Description

Configure the minimum quality level threshold to select a clock source (see Table 1). If the quality level of the output clock source drops below the configured minimum quality level threshold, the external output clock is suppressed on the external output interface—external—on SCBE and on the external output interfaces—external-0/0 and external-1/0—on SCBE2.

Table 1: Quality Levels

Quality Level

Description

prc

Timing quality of a primary reference clock (option-1 only).

prs

Clock traceable to a primary reference source (option-2 only).

sec

Timing quality of an SDH equipment clock (option-1 only).

smc

Clock traceable to a self-timed SONET (option-2 only).

ssu-a

Timing quality of a type I or IV client clock (option-1 only).

ssu-b

Timing quality of a type VI client clock (option-1 only).

st2

Clock traceable to Stratum 2 (option-2 only).

st3

Clock traceable to Stratum 3 (option-2 only).

st3e

Clock traceable to Stratum 3E (option-2 only).

st4

Clock traceable to Stratum 4 free-run (option-2 only).

stu

Clock traceable to an unknown quality (option-2 only).

tnc

Clock traceable to a transit node clock (option-2 only).

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.