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enable-extended-ql-tlv

Syntax

Hierarchy Level

Description

Enable enhanced synchronous Ethernet equipment clock (eEEC). eEEC supports new clocks with different Quality Levels (QLs) in the Synchronous Ethernet chain and transmits ESMC with extended QL TLV.

An extended QL TLV for eEEC provides the following three combinations of clocks:

  • eEEC with extended QL TLV support
  • EEC with no extended QL TLV support
  • EEC with extended QL TLV support.

The extended QL TLV allows the count of the number of cascaded eEEC and EEC clocks. This also allows clocks that support enhanced ESMC messages to report the presence of clocks with discarded TLVs.

Options

quality-level

The available quality levels are as follows:

Table 1: Quality Levels

Quality Level

Description

PRTC

Timing quality of a primary reference time clock (option-1/option-2).

eEEC

Timing quality of an enhanced Ethernet equipment clock (option-1/option-2).

ePRC

Timing quality of an enhanced primary reference clock (option-1/option-2).

ePRTC

Timing quality of an enhanced primary reference time clock (option-1/option-2).

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).

If you do not configure the quality level and the clock source does not receive ESMC messages, the quality level is set to DNU for network option-1 and DUS for network option-2.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 21.2R1 EVO.

Related Documentation