ETSI TS 101 909-12 V1.1.1 (2002-11)

SLOVENSKI STANDARD
SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
01-januar-2005
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Digital Broadband Cable Access to the Public Telecommunications Network; IP
Multimedia Time Critical Services; Part 12: Internet Signalling Transport Protocol (ISTP)
Ta slovenski standard je istoveten z: TS 101 909-12 Version 1.1.1
ICS:
33.040.35 Telefonska omrežja Telephone networks
SIST-TS ETSI/TS 101 909-12 V1.1.1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005

ETSI TS 101 909-12 V1.1.1 (2002-11)
Technical Specification


Digital Broadband Cable Access to the
Public Telecommunications Network;
IP Multimedia Time Critical Services;
Part 12: Internet Signalling Transport Protocol (ISTP)

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 2 ETSI TS 101 909-12 V1.1.1 (2002-11)



Reference
DTS/SPAN-130290
Keywords
IP, protocol, transport
ETSI
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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 3 ETSI TS 101 909-12 V1.1.1 (2002-11)
Contents
Intellectual Property Rights.6
Foreword.6
Introduction .6
1 Scope.7
2 References.7
3 Definitions, abbreviations and conventions .7
3.1 Definitions.7
3.2 Abbreviations.8
3.3 Convention.9
4 Signalling Protocols.9
5 Void.9
6 Overview and background motivation .9
6.1 Service goals.9
6.2 IPCablecom reference architecture.10
6.3 Introduction to ISTP.11
6.4 Specification goals.13
6.5 Specification interfaces.13
7 Architecture.13
7.1 IPCablecom to PSTN .13
7.2 Signalling architecture network model.14
7.3 Distribution Model.16
7.4 Guaranteed performance.17
7.5 Protocol stack.18
8 Functional areas.18
8.1 Mapping relationships.18
8.1.1 SS7 numbering.19
8.1.2 IPCablecom numbering.19
8.1.3 ISTP numbering.20
8.2 Message distribution.20
8.3 Dynamic Mapping.20
8.4 Relationships.21
8.5 Initialization.21
8.6 Recovery.22
8.7 Dynamic provisioning.23
8.8 Administration.23
8.9 Security.23
8.10 Maintenance.23
8.11 Measurement.23
8.12 Alarms.24
8.13 Congestion.24
8.14 Management of lower layers .24
9 Protocol.24
9.1 General requirements.24
9.1.1 Communication with the lower layers .24
9.1.2 Encoding rules.25
9.1.3 SS7 Load-sharing and sequencing .25
9.2 Procedures.25
9.2.1 Registration of circuit identifiers .25
9.2.1.1 Circuit registration.26
9.2.1.2 Circuit deregistration.26
ETSI

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 4 ETSI TS 101 909-12 V1.1.1 (2002-11)
9.2.2 Activation of registered circuits.27
9.2.2.1 Circuit activation.27
9.2.2.2 Forced exclusive circuit activation.27
9.2.2.3 New work circuit activation .28
9.2.2.4 Circuit deactivation.28
9.2.3 Registration of subsystem transactions .28
9.2.3.1 Subsystem registration.29
9.2.3.2 Subsystem transaction deregistration .29
9.2.4 Activation of registered subsystem transactions .29
9.2.4.1 Subsystem activation.30
9.2.4.2 Forced exclusive subsystem activation .30
9.2.4.3 Subsystem deactivation.30
9.2.5 Message transfer.31
9.2.5.1 ISUP message transfer .31
9.2.5.2 TCAP message transfer.31
9.3 Failure detection and handling .31
9.3.1 Heartbeat.32
9.3.2 Signalling gateway procedures .32
9.3.2.1 Signalling point accessibility .32
9.3.2.2 Subsystem accessibility.32
9.3.2.3 SS7 network accessibility .32
9.3.2.4 MGC/CMS accessibility.33
9.3.2.5 Congestion on the SS7 network .33
9.3.2.6 Congestion on the IP network .33
9.3.3 MGC and CMS procedures.33
9.3.3.1 Signalling point accessibility .33
9.3.3.2 SS7 Network accessibility.33
9.3.3.3 Signalling gateway accessibility .33
9.3.3.4 SS7 Network congestion.34
9.3.3.5 Congestion on the IP network .34
9.4 Message format.34
9.4.1 Message types.35
9.4.2 Message nature.35
9.4.3 Parameters.36
9.4.3.1 asciiString.36
9.4.3.2 cic.36
9.4.3.3 CircuitRange.36
9.4.3.4 DestinationType.37
9.4.3.5 InaccesibilityReason.37
9.4.3.6 Integer.37
9.4.3.7 isupClientReturnValue.37
9.4.3.8 isupTransferFormat.37
9.4.3.9 NormalizedISUPMsg.38
9.4.3.10 NormalizedTCAPMsg.38
9.4.3.11 pointCode.38
9.4.3.12 QualityOfService.38
9.4.3.13 rawISUPMsg.38
9.4.3.14 rawTCAPMsg.38
9.4.3.15 routingLabel.38
9.4.3.16 sccpPartyAddress.39
9.4.3.17 stream.39
9.4.3.18 subsystem.39
9.4.3.19 subsystemActionReturnValue.39
9.4.3.20 tcapTransferFormat.40
9.5 Messages.40
9.5.1 Circuit registration and activation messages.40
9.5.1.1 Circuit registration.40
9.5.1.2 Circuit deregistration.40
9.5.1.3 Circuit activation.41
9.5.1.4 Forced exclusive circuit activation.41
9.5.1.5 New work circuit activation .41
9.5.1.6 Circuit deactivation.41
ETSI

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 5 ETSI TS 101 909-12 V1.1.1 (2002-11)
9.5.1.7 Forced circuit deactivation.41
9.5.1.8 New work circuit deactivation .41
9.5.2 Subsystem transaction registration and activation messages .42
9.5.2.1 Subsystem registration.42
9.5.2.2 Subsystem deregistration.42
9.5.2.3 Subsystem activation.42
9.5.2.4 Exclusive subsystem activation.43
9.5.2.5 Subsystem deactivation.43
9.5.2.6 Forced subsystem deactivation.43
9.5.3 Message transfer.43
9.5.3.1 ISUP-Message-Transfer.43
9.5.3.2 TCAP-Message-Transfer.43
9.5.4 Flow control.44
9.5.4.1 Heartbeat.44
9.5.4.2 Signalling point inaccessible.44
9.5.4.3 Signalling point accessible.45
9.5.4.4 Subsystem inaccessible.45
9.5.4.5 Subsystem accessible.45
9.5.4.6 Signalling point congestion.45
9.5.4.7 Local Congestion.46
9.5.4.8 SS7 Network accessible .46
9.5.4.9 SS7 Network inaccessible .46
Annex A (informative): SCTP and TCP usage Recommendations.47
A.1 SCTP Usage recommendations.47
A.1.1 SCTP Stream Mapping.47
A.1.2 SCTP Congestion Information .47
A.2 TCP usage recommendations .47
A.2.1 Delaying of packets .48
A.2.2 Non-blocking interface.48
A.2.3 Disable TCP socket linger.48
Annex B (informative): ISTP message flows and timer definitions.49
B.1 Timers.49
B.2 MGC requests ISUP service procedure.50
B.3 MGC terminates ISUP service procedure .51
B.4 Residential CA requests TCAP service procedure.52
B.5 Residential CA terminates TCAP service procedure .53
B.6 MGC failover procedure .54
B.7 MGC switchover procedure .55
Annex C (informative): Bibliography.56
History .57

ETSI

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 6 ETSI TS 101 909-12 V1.1.1 (2002-11)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Services and Protocols for
Advanced Networks (SPAN).
The present document is part 2 of a multi-part deliverable. Full details of the entire series can be found in part 1 [3].
Introduction
This version is based on the 8TD112r2 from SPAN #78 in June 02 and the direct continuation of D8-36 presented at
TC-AT-D in July 02. The main changes are due to the new mechnism for OTID assignment and the additions in the
Subsystem registration. Proposed text changes from Ray Forbes are also covered.
ETSI

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SIST-TS ETSI/TS 101 909-12 V1.1.1:2005
 7 ETSI TS 101 909-12 V1.1.1 (2002-11)
1 Scope
The present document describes the Internet Signalling Transport Protocol (ISTP) to implement Signalling System
No. 7 signalling interconnection to a distributed IPCablecom architecture.
The present document addresses the protocol to implement ETSI SS7 used for signalling interconnection in a
distributed IPCablecom architecture. Specifically, it defines the messages and procedures for transporting SS7 ISUP,
and TCAP messages as defined by ETSI specifications between the IPCablecom control functions (Media Gateway
Controller and Call Management Server) and the SS7 Signalling Gateway. The IPCablecom Networks are always
connected to the PSTN/ISDN using standard ETSI SS7 interfaces Ref (ISUP, MTP and SCCP)
Areas beyond the scope of the present document include:
• address layer management (SNMP), security, and
...