Network Working Group M. Tuexen Internet-Draft Muenster Univ. of Applied Sciences Expires: December 28, 2006 K. Morneault Cisco Systems, Inc. June 26, 2006 TEI Query Request Number Change draft-ietf-sigtran-rfc4233update-00.txt 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 December 28, 2006. Copyright Notice Copyright (C) The Internet Society (2006). Abstract The IUA protocol described in RFC4233 defines the messages type of TEI Query Request messages as 5. But this number is already used by the IUA extension DUA described in RFC4129. This document updates IUA such that the message type of TEI Query Request messages is 8. Tuexen & Morneault Expires December 28, 2006 [Page 1] Internet-Draft TEI Query Request Number Change June 2006 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. New Message Type of the TEI Query Message . . . . . . . . . . . 3 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3 5. Security Considerations . . . . . . . . . . . . . . . . . . . . 3 6. Normative References . . . . . . . . . . . . . . . . . . . . . 3 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 5 Intellectual Property and Copyright Statements . . . . . . . . . . 6 Tuexen & Morneault Expires December 28, 2006 [Page 2] Internet-Draft TEI Query Request Number Change June 2006 1. Introduction The IUA protocol described in RFC3057 [2] does not define a TEI Query Request message. The IUA extension DUA described in RFC4129 [3] introduces DLC Status messages of type 5, 6, and 7. After that RFC4233 [4] was published, which updates RFC3057 [2]. This document also introduces the TEI Query Request message and uses the message type of 5 for it. This makes it impossible to differentiate the DLC Status request from a TEI Query Request. This document updates RFC4233 [4] 2. Conventions The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, NOT RECOMMENDED, MAY, and OPTIONAL, when they appear in this document, are to be interpreted as described in RFC2119 [1]. 3. New Message Type of the TEI Query Message This document updates RFC4233 [4] by introducing the following change. TEI Query messages MUST be encoded with a message type of 8 instead of 5 as described in RFC4233 [4]. 4. IANA Considerations IANA should reserve the message type 8 of Management Messages for TEI Query Request messages. 5. Security Considerations This document does not require any security considerations in addition to the one given in RFC4233 [4]. 6. Normative References [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [2] Morneault, K., Rengasami, S., Kalla, M., and G. Sidebottom, "ISDN Q.921-User Adaptation Layer", RFC 3057, February 2001. Tuexen & Morneault Expires December 28, 2006 [Page 3] Internet-Draft TEI Query Request Number Change June 2006 [3] Mukundan, R., Morneault, K., and N. Mangalpally, "Digital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2) Extensions to the IUA Protocol", RFC 4129, September 2005. [4] Morneault, K., Rengasami, S., Kalla, M., and G. Sidebottom, "Integrated Services Digital Network (ISDN) Q.921-User Adaptation Layer", RFC 4233, January 2006. Tuexen & Morneault Expires December 28, 2006 [Page 4] Internet-Draft TEI Query Request Number Change June 2006 Authors' Addresses Michael Tuexen Muenster Univ. of Applied Sciences Stegerwaldstr. 39 48565 Steinfurt Germany Email: tuexen@fh-muenster.de Ken Morneault Cisco Systems, Inc. 13615 Dulles Technology Drive Herndon, VA 20171 US Phone: +1-703-484-3323 Email: kmorneau@cisco.com Tuexen & Morneault Expires December 28, 2006 [Page 5] Internet-Draft TEI Query Request Number Change June 2006 Intellectual Property Statement The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. 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Disclaimer of Validity This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Copyright Statement Copyright (C) The Internet Society (2006). 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. Acknowledgment Funding for the RFC Editor function is currently provided by the Internet Society. Tuexen & Morneault Expires December 28, 2006 [Page 6]