Issues #6365

Considering PTP version 2.1

Added by christian zehnder about 1 year ago. Updated about 1 year ago.

Due date:
09/01/2023 (about 11 months late)
Discuss in Upcoming Meeting:
Clause Reference:
61850 Standard:
Triggering Tissue:
Final Decision:
Updated Test Document:
Test Case ID:
Closed Reason:
--Not Set---
Triggering Tissue 2:
Triggering Tissue 3:


Latest "Conformance Test Procedures for Server Devices with IEC 61850-8-1 ,Edition 2 Amendment 1 interface Revision Rev1.2" defines PTP as "Precision Time Protocol as specified in IEC/IEEE 61850-9-3".
"IEC/IEEE 61850-9-3:2016" references to PTP messages according to "IEC 61588:2009 ¦ IEEE Std 1588-2008" which is PTP version 2. So this is currently the only supported version.

Latest "IEC 61588:2021 ¦IEEE Std 1588™-2019" introduces PTP version 2 minor 1. Compatibility is discussed there in a Note:
"Note that the minorVersionPTP attribute is carried in a formerly reserved field and will therefore be ignored by PTP Instances conformant to previous editions of this standard. Since this field had the value 0 in earlier editions, it will be correctly interpreted by PTP Instances conformant to this edition"

So Edition 2.1 complaint devices should have no issues. Still, as clocks are currently available with PTPv2.1:
- Suppose formal way is to handled this in a future 9-3 and then accordingly update into testprocedures.
- Or adapt now testprocedures for CB13b, PIXIT (Svp6) with PTP version/minor.


Updated by Thierry Dufaure about 1 year ago

The purpose on ongoing TF 9-3 is to issue an 9-3 Ed2 to reference and harmonize with IEC 61588:2019.


Updated by IEC 61850 TPWG about 1 year ago

  • Status changed from New to Rejected

9-3 needs to be updated before TPWG can modify the TP.

This issue can be reopened when 9-3 is published.

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