rfc9748v2.txt   rfc9748.txt 
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Trust Legal Provisions and are provided without warranty as described Trust Legal Provisions and are provided without warranty as described
in the Revised BSD License. in the Revised BSD License.
Table of Contents Table of Contents
1. Introduction 1. Introduction
2. Existing Registries 2. Existing Registries
2.1. Reference ID and Kiss-o'-Death Registries 2.1. Reference ID and Kiss-o'-Death Registries
2.2. Extension Field Types 2.2. Extension Field Types
2.3. Network Time Security Registries 2.3. Network Time Security Registries
3. Registry Updates 3. NTP Registry Updates
3.1. Guidance to Designated Experts 3.1. Designated Experts
4. IANA Considerations 4. IANA Considerations
4.1. NTP Reference Identifier Codes 4.1. NTP Reference Identifier Codes
4.2. NTP Kiss-o'-Death Codes 4.2. NTP Kiss-o'-Death Codes
4.3. NTP Extension Field Types 4.3. NTP Extension Field Types
5. Security Considerations 5. Security Considerations
6. Normative References 6. Normative References
Acknowledgements Acknowledgements
Author's Address Author's Address
1. Introduction 1. Introduction
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registration policies: IETF Review, Specification Required, and registration policies: IETF Review, Specification Required, and
Private or Experimental Use. Private or Experimental Use.
Section 7.7 created the "Network Time Security Next Protocols" Section 7.7 created the "Network Time Security Next Protocols"
registry that similarly partitions the range. registry that similarly partitions the range.
Section 7.8 created the "Network Time Security Error Codes" and Section 7.8 created the "Network Time Security Error Codes" and
"Network Time Security Warning Codes" registries. Both registries "Network Time Security Warning Codes" registries. Both registries
are partitioned the same way. are partitioned the same way.
3. Registry Updates 3. NTP Registry Updates
The following general guidelines apply to the NTP registries: The following general guidelines apply to the NTP registries:
* Each registry reserves a partition for Private or Experimental * A partition of the "NTP Extension Field Types" registry is
Use.
* Entries with ASCII fields are now limited to uppercase letters or
digits; fields starting with 0x58, the uppercase letter "X", are
reserved for Private or Experimental Use. reserved for Private or Experimental Use.
* The policy for every registry is now Specification Required, as * In the "NTP Reference Identifier Codes" and "NTP Kiss-o'-Death
Codes" registries, entries with ASCII fields are now limited to
uppercase letters or digits. Fields starting with 0x58, the
uppercase letter "X", are reserved for Private or Experimental
Use.
* The policy for each registry is now Specification Required, as
defined in [RFC8126], Section 4.6. defined in [RFC8126], Section 4.6.
3.1. Designated Experts
The IESG is requested to choose three designated experts (DEs), with The IESG is requested to choose three designated experts (DEs), with
approvals from two being required to implement a change. Guidance approvals from two being required to implement a change. Guidance
for the experts is given below. for the experts is given below.
3.1. Guidance to Designated Experts
The DEs should be familiar with [RFC8126], particularly Section 5. The DEs should be familiar with [RFC8126], particularly Section 5.
As that reference suggests, the DE should ascertain the existence of As that reference suggests, the DE should ascertain the existence of
a suitable specification and verify that it is publicly available. a suitable specification and verify that it is publicly available.
The DE is also expected to check the clarity of purpose and use of The DE is also expected to check the clarity of purpose and use of
the requested code points. the requested code points.
In addition, the DE is expected to be familiar with this document, In addition, the DE is expected to be familiar with this document,
specifically the history documented here. specifically the history documented here.
4. IANA Considerations 4. IANA Considerations
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