Signalling Connection Control Part User Adaptation Layer (SUA)
RFC 3868
Document | Type | RFC - Proposed Standard (October 2004; No errata) | |
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Authors | Gery Verwimp , Brian Bidulock , Joe Keller , Greg Sidebottom , Lode Coene , John Loughney | ||
Last updated | 2015-10-14 | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 3868 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Jon Peterson | ||
Send notices to | (None) |
Network Working Group J. Loughney, Ed. Request for Comments: 3868 Nokia Category: Standards Track G. Sidebottom Signatus Technologies L. Coene G. Verwimp Siemens n.v. J. Keller Tekelec B. Bidulock OpenSS7 Corporation October 2004 Signalling Connection Control Part User Adaptation Layer (SUA) Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2004). Abstract This document defines a protocol for the transport of any Signalling Connection Control Part-User signalling over IP using the Stream Control Transmission Protocol. The protocol is designed to be modular and symmetric, to allow it to work in diverse architectures, such as a Signalling Gateway to IP Signalling Endpoint architecture as well as a peer-to-peer IP Signalling Endpoint architecture. Loughney, et al. Standards Track [Page 1] RFC 3868 SUA October 2004 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Scope. . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2. Abbreviations and Terminology. . . . . . . . . . . . . . 4 1.3. Signalling Transport Architecture. . . . . . . . . . . . 6 1.4. Services Provided by the SUA Layer . . . . . . . . . . . 9 1.5. Internal Functions Provided in the SUA Layer . . . . . . 11 1.6. Definition of SUA Boundaries . . . . . . . . . . . . . . 14 2. Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . 19 3. Protocol Elements. . . . . . . . . . . . . . . . . . . . . . . 19 3.1. Common Message Header. . . . . . . . . . . . . . . . . . 20 3.2. SUA Connectionless Messages. . . . . . . . . . . . . . . 24 3.3. Connection Oriented Messages . . . . . . . . . . . . . . 27 3.4. Signalling Network Management (SNM) Messages . . . . . . 42 3.5. Application Server Process State Maintenance Messages. . 49 3.6. ASP Traffic Maintenance Messages . . . . . . . . . . . . 53 3.7. SUA Management Messages. . . . . . . . . . . . . . . . . 56 3.8. Routing Key Management (RKM) Messages. . . . . . . . . . 58 3.9. Common Parameters. . . . . . . . . . . . . . . . . . . . 61 3.10. SUA-Specific parameters. . . . . . . . . . . . . . . . . 74 4. Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 92 4.1. Procedures to Support the SUA-User Layer . . . . . . . . 92 4.2. Receipt of Primitives from the Layer Management. . . . . 93 4.3. AS and ASP State Maintenance . . . . . . . . . . . . . . 95 4.4. Routing Key Management Procedures. . . . . . . . . . . .109 4.5. Availability and/or Congestion Status of SS7 Destination Support101 . . . . . . . . . . . . . . . . .112 4.6. MTP3 Restart . . . . . . . . . . . . . . . . . . . . . .115 4.7. SCCP - SUA Interworking at the SG. . . . . . . . . . . .115 5. Examples of SUA Procedures . . . . . . . . . . . . . . . . . .117 5.1. SG Architecture. . . . . . . . . . . . . . . . . . . . .117 5.2 IPSP Examples. . . . . . . . . . . . . . . . . . . . . .119 6. Security Considerations. . . . . . . . . . . . . . . . . . . .121 7. IANA Considerations. . . . . . . . . . . . . . . . . . . . . .121 7.1. SCTP Payload Protocol ID . . . . . . . . . . . . . . . .121 7.2. Port Number. . . . . . . . . . . . . . . . . . . . . . .121 7.3. Protocol Extensions. . . . . . . . . . . . . . . . . . .121 8. Timer Values . . . . . . . . . . . . . . . . . . . . . . . . .123 9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .123 10. References . . . . . . . . . . . . . . . . . . . . . . . . . .123 10.1. Normative References . . . . . . . . . . . . . . . . . .123 10.2. Informative References . . . . . . . . . . . . . . . . .124 Loughney, et al. Standards Track [Page 2]Show full document text