Dynamic Service Negotiation: The Connectivity Provisioning Negotiation Protocol (CPNP)
RFC 8921
Document | Type |
RFC - Informational
(October 2020; No errata)
Was draft-boucadair-connectivity-provisioning-protocol (individual)
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Authors | Mohamed Boucadair , Christian Jacquenet , Dacheng Zhang , Panos Georgatsos | ||
Last updated | 2020-10-21 | ||
Stream | ISE | ||
Formats | plain text html xml pdf htmlized bibtex | ||
IETF conflict review | conflict-review-boucadair-connectivity-provisioning-protocol | ||
Stream | ISE state | Published RFC | |
Consensus Boilerplate | Unknown | ||
Document shepherd | Adrian Farrel | ||
Shepherd write-up | Show (last changed 2020-03-24) | ||
IESG | IESG state | RFC 8921 (Informational) | |
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | Adrian Farrel <rfc-ise@rfc-editor.org> | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | No IANA Actions |
Independent Submission M. Boucadair, Ed. Request for Comments: 8921 C. Jacquenet Category: Informational Orange ISSN: 2070-1721 D. Zhang Huawei Technologies P. Georgatsos CERTH October 2020 Dynamic Service Negotiation: The Connectivity Provisioning Negotiation Protocol (CPNP) Abstract This document defines the Connectivity Provisioning Negotiation Protocol (CPNP), which is designed to facilitate the dynamic negotiation of service parameters. CPNP is a generic protocol that can be used for various negotiation purposes that include (but are not necessarily limited to) connectivity provisioning services, storage facilities, Content Delivery Networks, etc. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not candidates for any level of Internet Standard; see Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at https://www.rfc-editor.org/info/rfc8921. Copyright Notice Copyright (c) 2020 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Table of Contents 1. Introduction 2. Terminology 3. CPNP Functional Elements 4. Order Processing Models 5. Sample Use Cases 6. CPNP Deployment Models 7. CPNP Negotiation Model 8. Protocol Overview 8.1. Client/Server Communication 8.2. Policy Configuration on the CPNP Server 8.3. CPNP Session Entries 8.4. CPNP Transactions 8.5. CPNP Timers 8.6. CPNP Operations 8.7. Connectivity Provisioning Documents 8.8. Child PQOs 8.9. Multi-Segment Service 8.10. Negotiating with Multiple CPNP Servers 8.11. State Management 8.11.1. On the Client Side 8.11.2. On the Server Side 9. CPNP Objects 9.1. Attributes 9.1.1. CUSTOMER_ORDER_IDENTIFIER 9.1.2. PROVIDER_ORDER_IDENTIFIER 9.1.3. TRANSACTION_ID 9.1.4. SEQUENCE_NUMBER 9.1.5. NONCE 9.1.6. EXPECTED_RESPONSE_TIME 9.1.7. EXPECTED_OFFER_TIME 9.1.8. VALIDITY_OFFER_TIME 9.1.9. SERVICE_DESCRIPTION 9.1.10. CPNP Information Elements 9.2. Operation Messages 9.2.1. QUOTATION 9.2.2. PROCESSING 9.2.3. OFFER 9.2.4. ACCEPT 9.2.5. DECLINE 9.2.6. ACK 9.2.7. CANCEL 9.2.8. WITHDRAW 9.2.9. UPDATE 9.2.10. FAIL 9.2.11. ACTIVATE 10. CPNP Message Validation 10.1. On the Client Side 10.2. On the Server Side 11. Theory of Operation 11.1. Client Behavior 11.1.1. Order Negotiation Cycle 11.1.2. Order Withdrawal Cycle 11.1.3. Order Update Cycle 11.2. Server Behavior 11.2.1. Order Processing 11.2.2. Order Withdrawal 11.2.3. Order Update 11.3. Sequence Numbers 11.4. Message Retransmission 12. Some Operational Guidelines 12.1. CPNP Server Logging 12.2. Business Guidelines and Objectives 13. Security Considerations 14. IANA Considerations 15. References 15.1. Normative References 15.2. Informative References Acknowledgements Authors' Addresses 1. Introduction This document defines the Connectivity Provisioning Negotiation Protocol (CPNP) that is meant to dynamically exchange and negotiate connectivity provisioning parameters and other service-specific parameters between a Customer and a Provider. CPNP is a tool that introduces automation to the service negotiation and activation procedures, thus fostering the overall service provisioning process. CPNP can be seen as a component of the dynamic negotiation metadomain described in Section 2.4 of [RFC7149]. CPNP is a generic protocol that can be used for negotiation purposes other than connectivity provisioning. For example, CPNP can be usedShow full document text