--- 1/draft-ietf-mpls-git-uus-02.txt 2006-02-05 00:39:21.000000000 +0100 +++ 2/draft-ietf-mpls-git-uus-03.txt 2006-02-05 00:39:21.000000000 +0100 @@ -1,36 +1,38 @@ - Network Working Group Muneyoshi Suzuki INTERNET DRAFT NTT -Expires September 29, 1999 March 29, 1999 +Expires January 26, 2000 July 26, 1999 The Assignment of the Information Field and Protocol Identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet Protocol - + Status of this Memo This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. 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." - To view the list Internet-Draft Shadow Directories, see + 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. Abstract The purpose of this document is to specify the assignment of the information field and protocol identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet protocol. The assignment, that is specified in section 4 of this document, is @@ -300,21 +302,21 @@ Identifier type, length and value fields, and a Generic Identifier information element may contain multiple identifiers. Assignment of the Identifier type field for the Intenet protocol is as follows. A leading 0x means hexadecimal. 0x01: Session. 0x02: Resource. - 0x03-0xFD: Reserved for IANA assignment. + 0x10-0xFD: Reserved for IANA assignment. 0xFE: Experiment/Organization specific. The maximum length of the Generic Identifier information element is 63 octets. See the Q.2941.1 and Draft Q.2941.2 for detailed protocol specifications of the Generic Identifier. 3.2 Overview of the User-to-user Signaling @@ -847,21 +849,37 @@ environment. Wild card style aggregated session identifier may be feasible. However, before specifying Generic Identifier support for it, session aggregation model in ATM VCs should be clarified. o Generic Identifier support for the IPv6 flow label and traffic classes. The IPv6 flow label and traffic classes support may be needed in future. However, currently their semantics are not clear. -6. Security Considerations +6. IANA Considerations + + When the Identifier related standard/application field in the + Q.2941.2 Generic Identifier information element is the IPv4, ST2+, + IPv6, or MPLS, numbers between 0x10-0xFD in the Identifier type field + are reserved for IANA assignment. (See section 3.1). Following the + policies outlined in [14], these numbers are allocated through an + IETF Consensus action. + + When the Protocol discriminator field in the Q.2957 User-user + information element is the Internet protocol/application, numbers + between 0x03-0xFD in the Internet protocol/application identifier + field are reserved for IANA assignment. (See section 4.2.1). + Following the policies outlined in [14], these numbers are allocated + through an IETF Consensus action. + +7. Security Considerations This document specifies the information field and protocol identifier assignment in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet protocol, so these do not weaken the security of the B-ISDN signaling. In a called party of the B-ISDN signaling, if the incoming SETUP message contains the calling party number and if it is verified and passed by the ATM network or it is provided by the network, then it is feasible to use the calling party number for part of the calling @@ -881,67 +899,69 @@ Call/Connection Control," ITU-T Recommendation Q.2971, October 1995. [3] ITU-T, "Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signaling System No. 2 (DSS 2): Generic Identifier Transport," Draft ITU-T New Recommendation Q.2941.1, September 1997. [4] ITU-T, "Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signaling System No. 2 (DSS 2): Generic - Identifier Transport," Draft ITU-T New Recommendation Q.2941.2, - March 1999. + Identifier Transport Extensions," Draft ITU-T New Recommendation + Q.2941.2, July 1999. [5] ITU-T, "Stage 3 Description for Additional Information Transfer Supplementary Service Using B-ISDN Digital Subscriber Signaling System No. 2 (DSS 2)-Basic Call Clause 1-User-to-User Signalling (UUS)," ITU-T Recommendation Q.2957, February 1995. [6] ITU-T, "Stage 3 Description for Additional Information Transfer Supplementary Service Using B-ISDN Digital Subscriber Signaling System No. 2 (DSS 2)-Basic Call Clause 1-User-to-User Signalling (UUS)," Draft ITU-T Recommendation Q.2957 Amendment 1, - March 1999. + July 1999. [7] J. Postel Ed., "Internet Protocol," RFC 791, September 1981. [8] S. Deering and R. Hinden, "Internet Protocol, Version 6 (IPv6) Specification," RFC 2460, December 1998. [9] J. Postel, "User Datagram Protocol," RFC 768, August 1980. [10] J. Postel Ed., "Transmission Control Protocol," RFC 793, September 1981. [11] L. Delgrossi and L. Berger, Ed., "Internet Stream Protocol Version 2 (ST2) Protocol Specification - Version ST2+," RFC 1819, August 1995. [12] R. Braden Ed., "Resource ReSerVation Protocol (RSVP)-Version 1 Functional Specification," RFC 2205, September 1997. [13] K. Nagami, N. Demizu, H. Esaki, Y. Katsube, and P. Doolan, - "VCID Notification over ATM link," Internet Draft, December 1998, - . + "VCID Notification over ATM link for LDP," Work in Progress. - [14] P. Newman, T. Lyon, and G. Minshall, "Flow Labelled IP: A + [14] T. Narten and H. Alvestrand, "Guidelines for Writing an IANA + Considerations Section in RFCs," RFC 2434, October 1998. + + [15] P. Newman, T. Lyon, and G. Minshall, "Flow Labelled IP: A Connectionless Approach to ATM," Proc. IEEE Infocom, March 1996. - [15] S. Damaskos and A. Gavras, "Connection Oriented Protocols + [16] S. Damaskos and A. Gavras, "Connection Oriented Protocols over ATM: A case study," Proc. SPIE, Vol. 2188, pp.226-278, February 1994. - [16] ITU-T, "Integrated Services Digital Network (ISDN) Overall + [17] ITU-T, "Integrated Services Digital Network (ISDN) Overall Network Aspects and Functions ISDN Protocol Reference Model," ITU-T Recommendation I.320, November 1993. - [17] ITU-T, "Digital Subscriber Signaling System No. 1 (DSS 1) + [18] ITU-T, "Digital Subscriber Signaling System No. 1 (DSS 1) Specification of a Synchronization and Coordination Function for the Provision of the OSI Connection-mode Network Service in an ISDN Environment," ITU-T Recommendation Q.923, February 1995. Acknowledgments I would like to thank Kenichi Kitami of the NTT Information Sharing Lab. Group, who is also the chair of ITU-T SG11 WP1, Shinichi Kuribayashi of the NTT Information Sharing Platform Labs., Hiroshi Yao and Takumi Ohba of the NTT Network Service