SIST-TP ETSI/TR 102 140 V1.1.1:2005

• Abstract:

  Progress report of STF 226

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.35 - Telephone networks
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI TR 102 140 V1.1.1 (2003-05) - Services and Protocols for Advanced Networks (SPAN); Status report of transport mechanisms and protocols for the next generation of IP networks

SIST-TP ETSI/TR 102 140 V1.1.1:2005 is the Slovenian standard identical to ETSI TR 102 140 V1.1.1, a Technical Report from ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN). It is a status report on transport mechanisms and protocols for next generation IP networks, with a focus on SIGTRAN signaling transport between SS7 and IP networks. Engineers, implementers, and interoperability teams use it to understand the ETSI position on M2UA, M3UA, SUA and SCTP work.

What does SIST-TP ETSI/TR 102 140 V1.1.1:2005 specify?

SIST-TP ETSI/TR 102 140 V1.1.1:2005 describes the status of the documents worked on by Special Task Force (STF) 226. In practice, it is a progress report that explains which SIGTRAN-related Technical Specifications were produced, what implementation choices were taken, and which topics were left for later study.

The document is organized into Scope, References, Abbreviations, and a Report section with four subclauses covering the final TS list, SCTP, M2UA/M3UA/SUA, and further work, followed by History. That structure matters because the detailed protocol guidance is split across the companion Technical Specifications named in the references.

What are the key requirements of SIST-TP ETSI/TR 102 140 V1.1.1:2005?

The report records the outcome of STF 226 and the implementation rules ETSI wanted for interoperable signaling transport over IP. The main points are in clause 4 and are aimed at making the protocols work consistently across implementations and with SS7 networks.

Clause 4.1 - final set of Technical Specifications

STF 226 first worked on M2PA, M2UA, M3UA and SUA, but the analysis of M2PA led to a change of direction. The final produced TSs are TS 102 141 for M2UA, TS 102 142 for M3UA, TS 102 143 for SUA, and TS 102 144 for SCTP. For a reader, this means the ETSI work package ended up supporting three adaptation layers plus a dedicated SCTP document.

Clause 4.2 - SCTP implementation profile

The report says TS 102 144 focuses on SCTP for signaling transport. All SCTP implementations are required to use the same checksum algorithm for interoperability, to support multihoming for network fault tolerance, and to use the heartbeat mechanism. Multiple streams are also required because some SIGTRAN layers depend on them. In practice, this tells implementers which SCTP features must be present in equipment that carries signaling traffic.

The report also says features not used by SIGTRAN layers are not required, and that parameters must be configurable within given ranges. That matters for design and procurement because interoperability depends not only on the protocol name, but also on matching operational settings.

Clause 4.3 - common rules for M2UA, M3UA and SUA

The common clause 4 of TS 102 141, TS 102 142, TS 102 143 and TS 102 144 requires SCTP as the transport protocol. It also says national options are not required, dynamic registration procedures shall not be used, application servers shall not use broadcast mode, and traffic handled by application servers must not be finer-grained than the relevant network management messages allow. These rules narrow the implementation choices so the protocols can interwork appropriately with the SS7 network.

Clause 4.4 - further work topics

The report closes by identifying topics for later analysis: which protocol to use in particular situations, how the protocols interwork with the SS7 network, how to choose protocol parameters, how SS7 and IP congestion control interact, and how secure signaling transport can be provided. For buyers and engineers, this section shows where ETSI considered the work incomplete and where local engineering judgment would still be needed.

What terms does SIST-TP ETSI/TR 102 140 V1.1.1:2005 define?

• STF 226 - Special Task Force 226, the ETSI team that carried out the work reported here.
• SCTP - Stream Control Transmission Protocol, the transport protocol ETSI selected for signaling transport.
• SIGTRAN - Signalling TRANsport, the IETF work area for carrying SS7 signaling over IP networks.
• M2UA - Message transfer part 2 User Adaptation layer, used to adapt MTP level 2 signaling to IP transport.
• M3UA - Message transfer part 3 User Adaptation layer, used to adapt MTP level 3 signaling to IP transport.
• SUA - Signalling connection control part User Adaptation layer, used to adapt SCCP signaling to IP transport.
• M2PA - Message transfer part 2-User Peer-to-peer Adaptation layer, one of the protocols initially studied by STF 226.

Who uses SIST-TP ETSI/TR 102 140 V1.1.1:2005?

SIST-TP ETSI/TR 102 140 V1.1.1:2005 is used by ETSI SPAN participants, SIGTRAN implementers, and engineers working on SS7-over-IP signaling transport. It is also relevant to network operators, system vendors, and test teams who need to decide how SCTP, M2UA, M3UA and SUA should be deployed and configured for interoperability.

Which standards are used with SIST-TP ETSI/TR 102 140 V1.1.1:2005?

Clause 2 names four companion ETSI Technical Specifications:

• ETSI TS 102 141 - M2UA, the adaptation layer for Message transfer part 2 User Adaptation.
• ETSI TS 102 142 - M3UA, the adaptation layer for Message transfer part 3 User Adaptation.
• ETSI TS 102 143 - SUA, the adaptation layer for Signalling connection control part User Adaptation.
• ETSI TS 102 144 - SCTP, the transport protocol document used for signaling transport.

These referenced TSs provide the detailed protocol specifications that the status report summarizes.

What does the SIST-TP ETSI/TR 102 140 V1.1.1:2005 document contain?

The document contains a short status report rather than a full protocol specification. It summarizes the work of STF 226, lists the final set of produced Technical Specifications, and states the implementation choices ETSI made for SCTP and for the M2UA, M3UA and SUA common profile.

It also records the interoperability-oriented constraints on transport, registration, broadcast use, and traffic granularity, so readers know what behavior ETSI expected in implementations. The closing section identifies further study topics that were still open after this report.

SLOVENSKI STANDARD
01-januar-2005
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PHKDQL]PRYLQSURWRNRORY]DQDVOHGQMRJHQHUDFLMRRPUHåLM,3
Services and Protocols for Advanced Networks (SPAN); Status report of transport
mechanisms and protocols for the next generation of IP networks
Ta slovenski standard je istoveten z: TR 102 140 Version 1.1.1
ICS:
33.040.35 Telefonska omrežja Telephone networks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Technical Report
Services and Protocols for Advanced Networks (SPAN);
Status report of transport mechanisms and protocols
for the next generation of IP networks

2 ETSI TR 102 140 V1.1.1 (2003-05)

Reference
DTR/SPAN-130314
Keywords
IP, M2UA, M3UA, SCTP, SIGTRAN, SS7, SUA
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3 ETSI TR 102 140 V1.1.1 (2003-05)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Abbreviations.5
4 Report.5
4.1 Final list of TSs .5
4.2 SCTP.6
4.3 M2UA, M3UA and SUA.6
4.4 Further work.6
History .7

ETSI
4 ETSI TR 102 140 V1.1.1 (2003-05)
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