Updates to Private Header (P-Header) Extension Usage in Session Initiation Protocol (SIP) Requests and Responses
RFC 7976
Document | Type |
RFC - Informational
(September 2016; Errata)
Updates RFC 7315
Was draft-holmberg-dispatch-rfc7315-updates (individual)
|
|
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Authors | Christer Holmberg , Nevenka Biondic , Gonzalo Salgueiro | ||
Last updated | 2018-12-20 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | Jean Mahoney | ||
Shepherd write-up | Show (last changed 2016-05-18) | ||
IESG | IESG state | RFC 7976 (Informational) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Ben Campbell | ||
Send notices to | (None) | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | No IANA Actions |
Internet Engineering Task Force (IETF) C. Holmberg Request for Comments: 7976 N. Biondic Updates: 7315 Ericsson Category: Informational G. Salgueiro ISSN: 2070-1721 Cisco September 2016 Updates to Private Header (P-Header) Extension Usage in Session Initiation Protocol (SIP) Requests and Responses Abstract The Third Generation Partnership Project (3GPP) has identified cases where different SIP private header extensions referred to as "P-" header fields, and defined in RFC 7315, need to be included in SIP requests and responses currently not allowed according to RFC 7315. This document updates RFC 7315, in order to allow inclusion of the affected "P-" header fields in such requests and responses. This document also makes updates for RFC 7315 in order to fix misalignments that occurred when RFC 3455 was updated and obsoleted by RFC 7315. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate 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 http://www.rfc-editor.org/info/rfc7976. Holmberg, et al. Informational [Page 1] RFC 7976 Updates to P-Header Usage September 2016 Copyright Notice Copyright (c) 2016 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 (http://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. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Misalignments and 3GPP Use Cases . . . . . . . . . . . . . . 3 2.1. General . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2. Misalignments . . . . . . . . . . . . . . . . . . . . . . 3 2.3. 3GPP Use Cases . . . . . . . . . . . . . . . . . . . . . 4 2.3.1. General . . . . . . . . . . . . . . . . . . . . . . . 4 2.3.2. P-Access-Network-Info . . . . . . . . . . . . . . . . 4 2.3.3. P-Charging-Vector . . . . . . . . . . . . . . . . . . 5 3. Updates to RFC 7315 . . . . . . . . . . . . . . . . . . . . . 6 4. Security Considerations . . . . . . . . . . . . . . . . . . . 7 5. References . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.1. Normative References . . . . . . . . . . . . . . . . . . 7 5.2. Informative References . . . . . . . . . . . . . . . . . 8 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 8 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 8 1. Introduction The Third Generation Partnership Project (3GPP) has identified cases where different Session Initiation Protocol (SIP) [RFC3261] private header extensions referred to as "P-" header fields, and defined in [RFC7315], need to be included in SIP requests and responses currently not allowed according to RFC 7315. This document updates RFC 7315, in order to allow inclusion of the affected "P-" header fields in such requests and responses. This document also makes updates for RFC 7315 in order to fix misalignments that occurred when RFC 3455 [RFC3455] was updated and obsoleted by RFC 7315. Holmberg, et al. Informational [Page 2] RFC 7976 Updates to P-Header Usage September 2016 As the "P-" header fields are mainly used in (and in most cases, only defined for) networks defined by the 3GPP, where the updates defined in this document are already defined [TS.3GPP.24.229], the updates are not seen to cause backward-compatibility concerns. 2. Misalignments and 3GPP Use Cases 2.1. General RFC 7315 contains contradicting statements regarding the usage of SIPShow full document text