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show ptp clock

Syntax

Description

(ACX Series, MX80, MX240, MX480, MX960 routers, and QFX Series switches) Display the details of the clock configured on the node.

Options

This command has no options.

Required Privilege Level

view

Output Fields

Table 1 lists the output fields for the show ptp clock command. Output fields are listed in the approximate order in which they appear.

Table 1: show ptp clock Output Fields

Field Name

Field Description

Slot Number

Number of the FPC or MIC slot.

Two-step Clock

Whether the clock provides time information which is a combination of an event message and a subsequent general message: True or False.

Clock Identity

Clock identity of the client or client as defined in IEEE 1588.

Total Ports on Device

Total number of PTP ports on the router.

Clock Class

Attribute of an ordinary or boundary clock that denotes the traceability of the time or frequency distributed by the reference clock.

Clock Accuracy

Indicates the expected accuracy of a clock when it is the reference clock, or in the event it becomes the reference.

Log Variance

Represents an estimate of the variations of the local clock when it is not synchronized via PTP to another clock.

Clock Priority1

Priority value of the clock. Lower value takes precedence.

Clock Priority2

Prioritize the primaries to avoid confusion when the Clock Priority1 value is the same for different primaries in a network.

UTC Offset

Offset between International Atomic Time (TAI ) and Coordinated Universal Time (UTC) times. The value is 34 seconds as of January 2012.

Leap59

When TRUE, the last minute of the current UTC day has only 59 seconds (instead of the 60 SI seconds).

Leap61

When TRUE, the last minute of the current UTC day has 61 seconds (instead of the 60 SI seconds).

Time Traceable

When TRUE, the timescale and the UTC offset are traceable to a primary reference.

Frequency Traceable

When TRUE, frequency determining the timescale is traceable to a primary reference.

Time Source

Time source external to the Precision Time Protocol (PTP), which provides time and/or frequency as appropriate. The time source is traceable to the international standards laboratories maintaining clocks that form the basis for the International Atomic Time (TAI) and Universal Coordinated Time (UTC) timescales. Examples of these are Global Positioning System (GPS), NTP, and National Institute of Standards and Technology (NIST) timeservers.

Delay Req Sending Time

Interval in seconds between the delay-request messages sent by the client to the primary.

Steps Removed

Number of boundary clocks between the local clock and the foreign primary clock.

Slave-only

Set to TRUE, when the system is used in ordinary client clock mode; otherwise, FALSE.

Parent Id

EUI-64 clock identifier of the immediate upstream primary clock.

GMC Id

EUI-64 clock identifier of the reference clock.

GMC Class

Denotes the reference clock’s traceability of the distributed time or frequency.

GMC Accuracy

Indicates the expected accuracy of the reference clock.

GMC Variance

Represents an estimate of the variations of the reference clock.

GMC Priority1

Priority1-value of the reference clock.

GMC Priority2

Priority2-value of the reference clock.

Sample Output

show ptp clock

show ptp clock (ACX Series Routers)

Release Information

Command introduced in Junos OS Release 12.2.