SIP Working Group James Polk Internet-Draft Cisco Systems Expires: April 16th, 2008 Intended Status: Standards Track (as PS) IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Header Namespaces draft-ietf-sip-rph-new-namespaces-00 Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 16th, 2008. Copyright Notice Copyright (C) The IETF Trust (2007). Abstract This document creates additional Session Initiation Protocol Resource-Priority header namespaces, to be IANA registered. Polk Expires April 16th, 2008 [Page 1] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 Conventions used in this document . . . . . . . . . . . . 2 2. New RPH Namespaces Created . . . . . . . . . . . . . . . . . 2 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 3.1 IANA Resource-Priority Namespace Registration . . . . . . . 4 3.2 IANA Priority-Value Registrations . . . . . . . . . . . . 5 4. Security Considerations . . . . . . . . . . . . . . . . . . . 9 5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 9 6. References . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.1 Normative References . . . . . . . . . . . . . . . . . . 9 Author's Address . . . . . . . . . . . . . . . . . . . . . . 9 Intellectual Property and Copyright Statements . . . . . . . 9 1. Introduction The US Defense Information Systems Agency (DISA) is rolling out their Session Initiation Protocol (SIP) based architecture at this time. This network will require more Resource-Priority header (RPH) namespaces than were defined, and IANA registered, in RFC 4412 [RFC4412]. The purpose of this document is to define these additional namespaces. Each will be RFC 4412 defined preemption based in nature, and will have the same 5 priority-values. One aspect within DISA's network will be to allow a session or call to only preempt another call established with the same Resource-Priority header namespace, but no other namespace. In other words, messages with a namespace of dsn-X may only have their RPH priority-values compared for preferential treatment to other dsn-X namespaces, and not any other namespaces, unless two or more (complete) namespaces are considered to be equivalent, as defined in section 8 of RFC 4412 [RFC4412]. This is all a matter of local policy. However, this policy is a known requirement from DISA to support moving forward. 1.1 Conventions used in this document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 2. New RPH Namespaces Created The following 50 SIP Resource Priority header namespaces are created by this document: Polk Expires April 16th, 2008 [Page 2] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 dsn-000000 dsn-000010 dsn-000020 dsn-000030 dsn-000001 dsn-000011 dsn-000021 dsn-000031 dsn-000002 dsn-000012 dsn-000022 dsn-000003 dsn-000013 dsn-000023 dsn-000004 dsn-000014 dsn-000024 dsn-000005 dsn-000015 dsn-000025 dsn-000006 dsn-000016 dsn-000026 dsn-000007 dsn-000017 dsn-000027 dsn-000008 dsn-000018 dsn-000028 dsn-000009 dsn-000019 dsn-000029 dsn-00000A dsn-00001A dsn-00002A dsn-00000B dsn-00001B dsn-00002B dsn-00000C dsn-00001C dsn-00002C dsn-00000D dsn-00001D dsn-00002D dsn-00000E dsn-00001E dsn-00002E dsn-00000F dsn-00001F dsn-00002F Each namespace listed above will have the same 5 priority-levels: .0 (lowest priority) .2 .4 .6 .8 (highest priority) A namespace from the above list will not be considered for preferential treatment over another namespace unless local policy has configured a SIP entity processing two messages (each with different namespaces) as being equivalent (see section 8 of RFC 4412 [RFC4412] for this detailed). The reality of this is, a message (or a call) with the following Resource-Priority header value: dsn-000001.8 for example, will not have any preferential treatment over a message, for example, with this Resource-Priority header value: dsn-000010.0 because they are two difference namespaces. The dash '-' character is just like any other character, and is not to be considered a delimiter in any official way within any namespace here. This MAY change in future efforts. As stated in Section 9 of RFC 4412 [RFC4412], an IANA registered namespace SHOULD NOT change the number, and MUST NOT change the relative priority order, of its assigned priority-values. Polk Expires April 16th, 2008 [Page 3] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 3. IANA Considerations Abiding by the rules established within RFC 4412 [RFC4412], this is a Standards-Track document registering new SIP Resource-Priority header namespaces, and their associated priority-values and intended algorithms. 3.1 IANA Resource-Priority Namespace Registration Within the "Resource-Priority Namespaces" registry in the sip-parameters section of IANA, the following table lists the new RPH namespaces registered by this document (NOTE: 'RFCXXXX' is to be replaced by this document's RFC number if this document is published by the RFC-Editor): Intended New warn- New resp. Namespace Levels Algorithm code code Reference ---------- ------ ------------ --------- --------- --------- dsn-000000 5 preemption no no [RFCXXXX] dsn-000001 5 preemption no no [RFCXXXX] dsn-000002 5 preemption no no [RFCXXXX] dsn-000003 5 preemption no no [RFCXXXX] dsn-000004 5 preemption no no [RFCXXXX] dsn-000005 5 preemption no no [RFCXXXX] dsn-000006 5 preemption no no [RFCXXXX] dsn-000007 5 preemption no no [RFCXXXX] dsn-000008 5 preemption no no [RFCXXXX] dsn-000009 5 preemption no no [RFCXXXX] dsn-00000A 5 preemption no no [RFCXXXX] dsn-00000B 5 preemption no no [RFCXXXX] dsn-00000C 5 preemption no no [RFCXXXX] dsn-00000D 5 preemption no no [RFCXXXX] dsn-00000E 5 preemption no no [RFCXXXX] dsn-00000F 5 preemption no no [RFCXXXX] dsn-000010 5 preemption no no [RFCXXXX] dsn-000011 5 preemption no no [RFCXXXX] dsn-000012 5 preemption no no [RFCXXXX] dsn-000013 5 preemption no no [RFCXXXX] dsn-000014 5 preemption no no [RFCXXXX] dsn-000015 5 preemption no no [RFCXXXX] dsn-000016 5 preemption no no [RFCXXXX] dsn-000017 5 preemption no no [RFCXXXX] dsn-000018 5 preemption no no [RFCXXXX] dsn-000019 5 preemption no no [RFCXXXX] dsn-00001A 5 preemption no no [RFCXXXX] dsn-00001B 5 preemption no no [RFCXXXX] dsn-00001C 5 preemption no no [RFCXXXX] dsn-00001D 5 preemption no no [RFCXXXX] dsn-00001E 5 preemption no no [RFCXXXX] dsn-00001F 5 preemption no no [RFCXXXX] Polk Expires April 16th, 2008 [Page 4] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 dsn-000020 5 preemption no no [RFCXXXX] dsn-000021 5 preemption no no [RFCXXXX] dsn-000022 5 preemption no no [RFCXXXX] dsn-000023 5 preemption no no [RFCXXXX] dsn-000024 5 preemption no no [RFCXXXX] dsn-000025 5 preemption no no [RFCXXXX] dsn-000026 5 preemption no no [RFCXXXX] dsn-000027 5 preemption no no [RFCXXXX] dsn-000028 5 preemption no no [RFCXXXX] dsn-000029 5 preemption no no [RFCXXXX] dsn-00002A 5 preemption no no [RFCXXXX] dsn-00002B 5 preemption no no [RFCXXXX] dsn-00002C 5 preemption no no [RFCXXXX] dsn-00002D 5 preemption no no [RFCXXXX] dsn-00002E 5 preemption no no [RFCXXXX] dsn-00002F 5 preemption no no [RFCXXXX] dsn-000030 5 preemption no no [RFCXXXX] dsn-000031 5 preemption no no [RFCXXXX] 3.2 IANA Priority-Value Registrations Within the "Resource-Priority Priority-values" registry in the sip- parameters section of IANA, the list of priority-values for each of the newly created RPH namespaces from section 4.1 of this document, prioritized least to greatest, is registered by the following: Namespace: dsn-000000 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000001 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000002 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000003 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000004 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000005 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000006 Polk Expires April 16th, 2008 [Page 5] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000007 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000008 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000009 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000A Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000B Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000C Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000D Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000E Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00000F Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000010 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000011 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000012 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000013 Polk Expires April 16th, 2008 [Page 6] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000014 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000015 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000016 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000017 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000018 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000019 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001A Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001B Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001C Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001D Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001E Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00001F Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000020 Polk Expires April 16th, 2008 [Page 7] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000021 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000022 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000023 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000024 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000025 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000026 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000027 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000028 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000029 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002A Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002B Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002C Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002D Polk Expires April 16th, 2008 [Page 8] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002E Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-00002F Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000030 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" Namespace: dsn-000031 Reference: RFCXXXX (this document) Priority-Values (least to greatest): "0", "2", "4", "6", "8" 4. Security Considerations This document has the same Security Considerations as RFC 4412. 5. Acknowledgements To Jeff Hewett for his helpful guidance in this effort. 6. References 6.1 Normative References [RFC4412] Schulzrinne, H., Polk, J., "Communications Resource Priority for the Session Initiation Protocol (SIP)", RFC 4411, Feb 2006 [RFC2119] S. Bradner, "Key words for use in RFCs to Indicate Requirement Levels", RFC 2119, March 1997 Author's Address James Polk 3913 Treemont Circle Colleyville, Texas 76034 USA Phone: +1-817-271-3552 Fax: none Email: jmpolk@cisco.com Polk Expires April 16th, 2008 [Page 9] Internet-Draft New SIP RPH Namespaces for DISA Oct 2007 Full Copyright Statement Copyright (C) The IETF Trust (2007). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. 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Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org. Acknowledgment Funding for the RFC Editor function is provided by the IETF Administrative Support Activity (IASA). Polk Expires April 16th, 2008 [Page 10]