| < draft-ietf-tictoc-ptp-enterprise-profile-21.txt | draft-ietf-tictoc-ptp-enterprise-profile-22.txt > | |||
|---|---|---|---|---|
| TICTOC Working Group D.A. Arnold | TICTOC Working Group D.A. Arnold | |||
| Internet-Draft Meinberg-USA | Internet-Draft Meinberg-USA | |||
| Intended status: Standards Track H.G. Gerstung | Intended status: Standards Track H.G. Gerstung | |||
| Expires: 4 March 2022 Meinberg | Expires: 8 October 2022 Meinberg | |||
| 31 August 2021 | 6 April 2022 | |||
| Enterprise Profile for the Precision Time Protocol With Mixed Multicast | Enterprise Profile for the Precision Time Protocol With Mixed Multicast | |||
| and Unicast Messages | and Unicast Messages | |||
| draft-ietf-tictoc-ptp-enterprise-profile-21 | draft-ietf-tictoc-ptp-enterprise-profile-22 | |||
| Abstract | Abstract | |||
| This document describes a profile for the use of the Precision Time | This document describes a profile for the use of the Precision Time | |||
| Protocol in an IPV4 or IPv6 Enterprise information system | Protocol in an IPV4 or IPv6 Enterprise information system | |||
| environment. The profile uses the End to End Delay Measurement | environment. The profile uses the End to End Delay Measurement | |||
| Mechanism, allows both multicast and unicast Delay Request and Delay | Mechanism, allows both multicast and unicast Delay Request and Delay | |||
| Response Messages. | Response Messages. | |||
| Status of This Memo | Status of This Memo | |||
| skipping to change at page 1, line 36 ¶ | skipping to change at page 1, line 36 ¶ | |||
| Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
| Task Force (IETF). Note that other groups may also distribute | Task Force (IETF). Note that other groups may also distribute | |||
| working documents as Internet-Drafts. The list of current Internet- | working documents as Internet-Drafts. The list of current Internet- | |||
| Drafts is at https://datatracker.ietf.org/drafts/current/. | Drafts is at https://datatracker.ietf.org/drafts/current/. | |||
| Internet-Drafts are draft documents valid for a maximum of six months | Internet-Drafts are draft documents valid for a maximum of six months | |||
| and may be updated, replaced, or obsoleted by other documents at any | and may be updated, replaced, or obsoleted by other documents at any | |||
| time. It is inappropriate to use Internet-Drafts as reference | time. It is inappropriate to use Internet-Drafts as reference | |||
| material or to cite them other than as "work in progress." | material or to cite them other than as "work in progress." | |||
| This Internet-Draft will expire on 4 March 2022. | This Internet-Draft will expire on 8 October 2022. | |||
| Copyright Notice | Copyright Notice | |||
| Copyright (c) 2021 IETF Trust and the persons identified as the | Copyright (c) 2022 IETF Trust and the persons identified as the | |||
| document authors. All rights reserved. | document authors. All rights reserved. | |||
| This document is subject to BCP 78 and the IETF Trust's Legal | This document is subject to BCP 78 and the IETF Trust's Legal | |||
| Provisions Relating to IETF Documents (https://trustee.ietf.org/ | Provisions Relating to IETF Documents (https://trustee.ietf.org/ | |||
| license-info) in effect on the date of publication of this document. | license-info) in effect on the date of publication of this document. | |||
| Please review these documents carefully, as they describe your rights | Please review these documents carefully, as they describe your rights | |||
| and restrictions with respect to this document. Code Components | and restrictions with respect to this document. Code Components | |||
| extracted from this document must include Simplified BSD License text | extracted from this document must include Revised BSD License text as | |||
| as described in Section 4.e of the Trust Legal Provisions and are | described in Section 4.e of the Trust Legal Provisions and are | |||
| provided without warranty as described in the Simplified BSD License. | provided without warranty as described in the Revised BSD License. | |||
| Table of Contents | Table of Contents | |||
| 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 | 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 | |||
| 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4 | 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3 | |||
| 3. Technical Terms . . . . . . . . . . . . . . . . . . . . . . . 4 | 3. Technical Terms . . . . . . . . . . . . . . . . . . . . . . . 4 | |||
| 4. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 6 | 4. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 6 | |||
| 5. Network Technology . . . . . . . . . . . . . . . . . . . . . 7 | 5. Network Technology . . . . . . . . . . . . . . . . . . . . . 7 | |||
| 6. Time Transfer and Delay Measurement . . . . . . . . . . . . . 7 | 6. Time Transfer and Delay Measurement . . . . . . . . . . . . . 7 | |||
| 7. Default Message Rates . . . . . . . . . . . . . . . . . . . . 9 | 7. Default Message Rates . . . . . . . . . . . . . . . . . . . . 8 | |||
| 8. Requirements for Master Clocks . . . . . . . . . . . . . . . 9 | 8. Requirements for Master Clocks . . . . . . . . . . . . . . . 9 | |||
| 9. Requirements for Slave Clocks . . . . . . . . . . . . . . . . 9 | 9. Requirements for Slave Clocks . . . . . . . . . . . . . . . . 9 | |||
| 10. Requirements for Transparent Clocks . . . . . . . . . . . . . 10 | 10. Requirements for Transparent Clocks . . . . . . . . . . . . . 9 | |||
| 11. Requirements for Boundary Clocks . . . . . . . . . . . . . . 10 | 11. Requirements for Boundary Clocks . . . . . . . . . . . . . . 10 | |||
| 12. Management and Signaling Messages . . . . . . . . . . . . . . 10 | 12. Management and Signaling Messages . . . . . . . . . . . . . . 10 | |||
| 13. Forbidden PTP Options . . . . . . . . . . . . . . . . . . . . 10 | 13. Forbidden PTP Options . . . . . . . . . . . . . . . . . . . . 10 | |||
| 14. Interoperation with IEEE 1588 Default Profile . . . . . . . . 10 | 14. Interoperation with IEEE 1588 Default Profile . . . . . . . . 10 | |||
| 15. Profile Identification . . . . . . . . . . . . . . . . . . . 11 | 15. Profile Identification . . . . . . . . . . . . . . . . . . . 10 | |||
| 16. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11 | 16. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11 | |||
| 17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11 | 17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11 | |||
| 18. Security Considerations . . . . . . . . . . . . . . . . . . . 11 | 18. Security Considerations . . . . . . . . . . . . . . . . . . . 11 | |||
| 19. References . . . . . . . . . . . . . . . . . . . . . . . . . 12 | 19. References . . . . . . . . . . . . . . . . . . . . . . . . . 11 | |||
| 19.1. Normative References . . . . . . . . . . . . . . . . . . 12 | 19.1. Normative References . . . . . . . . . . . . . . . . . . 11 | |||
| 19.2. Informative References . . . . . . . . . . . . . . . . . 12 | 19.2. Informative References . . . . . . . . . . . . . . . . . 12 | |||
| Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13 | Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 12 | |||
| 1. Introduction | 1. Introduction | |||
| The Precision Time Protocol ("PTP"), first standardized in IEEE 1588, | The Precision Time Protocol ("PTP"), first standardized in IEEE 1588, | |||
| has been designed in its first version (IEEE 1588-2002) with the goal | has been designed in its first version (IEEE 1588-2002) with the goal | |||
| to minimize configuration on the participating nodes. Network | to minimize configuration on the participating nodes. Network | |||
| communication was based solely on multicast messages, which unlike | communication was based solely on multicast messages, which unlike | |||
| NTP did not require that a receiving node ("slave clock") in | NTP did not require that a receiving node ("slave clock") in | |||
| IEEE 1588-2019 [IEEE1588] needs to know the identity of the time | IEEE 1588-2019 [IEEE1588] needs to know the identity of the time | |||
| sources in the network (the Master Clocks). This document describes | sources in the network (the Master Clocks). This document describes | |||
| End of changes. 11 change blocks. | ||||
| 16 lines changed or deleted | 16 lines changed or added | |||
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