show ptp all master clock
Syntax
show ptp all-master-clock
Description
(MX240, MX480, MX960, MX2010, MX2020, MX2008, MX304, PTX10004, PTX10008, ACX7100-32, ACX7100-48, ACX7024, ACX7509 routers) Display the details of the master clock configured on the node.
Options
The command has no options.
Required Privilege Level
view
Output Fields
The Output Fields lists the output fields for the show ptp
all-master-clock
command. Output fields are listed in the approximate order in
which they appear.
Field Name | Field Description |
---|---|
Slot |
Number of the FPC or MIC slot. If underlying interface is not available momentarily or is unavailable for a virtual interface, the slot number is 255. |
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 Priority 1 |
Priority1-value of the reference clock. |
GMC Priority 2 |
Priority2-value of the reference clock. |
UTC Offset |
Offset between International Atomic Time (TAI ) and Coordinated Universal Time (UTC) times. The value is 34 seconds as of January 2012. |
Leap-59 |
When TRUE, the last minute of the current UTC day has only 59 seconds (instead of the 60 SI seconds). |
Leap-61 |
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. |
Freq Traceable |
When TRUE, frequency determining the timescale is traceable to a primary reference. |
Time Scale |
The PTP primary clock's best estimate of the international standard time scales. |
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. |
Unicast |
Configure upstream unicast PTP primary clock sources. |
UTC Valid |
TRUE if the UTC offset is known to be correct. |
Two Step
|
Whether the clock provides time information, which is a combination of an event message and a subsequent general message: True or False. |
Alternate Master
|
Allows alternate masters that are not the current best master to exchange PTP timing information with client ports. |
Steps Removed |
Number of boundary clocks between the local clock and the foreign primary clock. |
Parent SourcePort Id |
Source port Id of a master clock. |
ANN msg Interval |
Determines the mean time interval between successive announce messages. For example, announce Interval = 2 ^ Log Interval. |
Interface |
Interface on which announce message is received. |
PTP Stream ID |
Unique Local identifier index of PTP stream created. |
Sample Output
show ptp all-master-clock
user@host> show ptp all-master-clock Upstream Masters: Slot : 1 Parent Id : 74:e7:98:ff:fe:60:8b:dd GMC Id : 74:e7:98:ff:fe:60:8b:dd GMC Class : 6 GMC Accuracy : 33 GMC Variance : 20061 GMC Priority1 : 128 GMC Priority2 : 128 UTC Offset : 37 Leap-59 : FALSE Leap-61 : FALSE Time traceable : TRUE Freq Traceable : TRUE Time Scale : TRUE Time source : 32 Unicast : FALSE UTC Valid : TRUE Two Step : FALSE Alternate Master : FALSE Steps Removed : 0 Parent SourcePort Id : 2 ANN msg Interval : -3 Interface : et-1/0/0:0.0 PTP Stream ID : 4