Síťový plán signalizace Příloha 5. Technická specifikace SCCP

Transkript

1 Síťový plán signalizace Příloha 5 Technická specifikace SCCP

2 1 Základní ustanovení 1.1 Specifikace SCCP vychází z ITU-T doporučení Q.711, Q.712, Q.713, Q.714, Q.716 (03/93) modifikovaných normou ETS (September 1996). 1.2 Pro tuto verzi protokolu SCCP není zaručena kompatibilita s předchozí verzí protokolu z roku Podrobnější informace o případných problémech s kompatibilitou různých verzí lze najít v ETS Příloha ZA. 1.3 Reakce na příjem zprávy nebo parametru, který síť nepodporuje, je popsána v Q.714, bod V souhlase s ETS se na rozhraní mezi sítěmi vždy předává parameter Global Title. Pro směrování mezi sítěmi v národní síti se používá vždy hodnota parametru Routing Indicator = 0 (Routing on Global Title). Jiné směrování vzhledem k existenci přechodové sítě (NI = 11) není možné. 1.5 Při použití protokolu SCCP pro podporu služby na rozhraní mezi sítěmi je třeba dohodnout použitou třídu služby. 1.6 Na rozhraní mezi národní a mezinárodní sítí platí mezinárodní doporučení ITU-T a případně normy ETSI tam, kde je to relevantní. SPS_P5, Edice 2,

3 2 Seznam základních norem a doporučení Oblast Norma ETSI nebo doporučení ITU-T SCCP ČSN ETS ed.3 ( ) Schválena idt ETS Third Edition September 1996 Q.711 (03/93) Q.712 (03/93) Q.713 (03/93) Q.714 (03/93) Q.716 (03/93) Název normy ETSI nebo doporučení ITU-T Digitální síť integrovaných služeb (ISDN). Signalizační systém č.7. Řídící část signalizačního spojení (SCCP) [v režimu bez spojení a se spojením ve třídě 2] podporující mezinárodní propojení. Část 1: Specifikace protokolu [Doporučení ITU-T Q.711 až Q.714 a Q.716 (1993), upravené] Signalling system No. 7 Functional Description of the Signalling Connection Control Part Definition and Function of Signalling Connection Control Part Messages Signalling Connection Control Part Formats and Codes Signalling Connection Control Part Procedures Signalling Connection Control Part (SCCP) Performance Poznámka 1) Pozn.: 1) Norma ČSN ETS převzata schválením k přímému používání SPS_P5, Edice 2,

4 3 Poznámky k normám a doporučením Všeobecně Rozlišení požadované závaznosti plnění paragrafů norem, tj. povinná, volitelná, je odvozeno z mezinárodní normy IS 9646 a z doporučení ITU-T X.290 a výše. Jestliže je některý parametr nebo indikátor označen jako povinný, ne všechny kódy tohoto parametru nebo indikátoru musí být povinně plněny. Závaznost volitelné služby, vlastnosti nebo funkce je založena na vzájemné dohodě operátorů. Zkratky pro stanovení závaznosti požadavku: NA neaplikovatelná - nerelevantní nebo název nebo popisný text PPS povinná při poskytování dané služby Vzhledem k tomu, že normy ČSN ETS byly přejaty schválením k přímému používání, jsou pro poznámky k technické části norem citovány normy ETS. V případě rozporů ve výkladu pojmů a požadavků platí originální text v anglickém jazyce. SPS_P5, Edice 2,

5 Paragraf normy ETS Název Závaznost Poznámka Integrated Services Digital Network (ISDN) ; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 1: Protocol speciffication [ ITU-T Recommendations Q.711 to Q.714 and Q. 716 (1993), modified] Povinné při poskytování služby, která některou ze služeb (třídu služby) SCCP vyžaduje Q.711 Signalling system No. 7 Functional - Description of the Signalling Connection Control Part Q Introduction - Q General PPS Q Objectives PPS Q General characteristics - Q Technique of description PPS Q Primitives PPS Q Peer-to-peer communication PPS Q Contents of the Q.71x-Series of PPS Recommendations Q Services provided by the SCCP PPS Class 3 se podle ETS nepodporuje Q Connection-oriented services PPS Q Temporary signalling connections - Q Description PPS Q Connection establishment phase PPS Q Data transfer phase PPS Q Connection release phase PPS Q Network service primitives and - parameters Q Overview PPS Q Connection establishment phase PPS Q Data transfer phase PPS Q Release phase PPS Q Additional SCCP primitive and interface PPS elements Q Notice service PPS Q Connection establishment interface PPS elements Q Permanent signalling connections - Q Description PPS Q Primitives and parameters PPS Q Connectionless service PPS Q Description PPS Q Primitives and parameters of the - connectionless service Q Overview PPS Q Parameters - SPS_P5, Edice 2,

6 Paragraf normy Název Závaznost Poznámka Q Address PPS Q Sequence control PPS Q Return option PPS Q Reason for return PPS Q User data PPS Q Primitives PPS Q UNITDATA PPS Q NOTICE PPS Q SCCP management - Q Description PPS Q Primitives and parameters of the SCCP - management Q Overview PPS Q Parameters - Q Address PPS Q Affected subsystem PPS Q User status PPS Q Subsystem multiplicity indicator PPS Q Affected DPC PPS Q Signalling point status PPS Q Remote SCCP Status PPS Q Primitives - Q COORD PPS Q STATE PPS Q PCSTATE PPS Q Services assumed from the MTP - Q Description PPS Q Primitives and parameters PPS Q TRANSFER PPS Q PAUSE PPS Q RESUME PPS Q STATUS PPS Q MTP Restart PPS Q Functions provided by the SCCP PPS Q Connection oriented functions - Q Functions for temporary signalling - connections Q Connection establishment functions PPS Q Data transfer phase function PPS Q Release phase functions PPS Q Functions for permanent signalling - connections Q Connection establishment phase and PPS connection release phase functions Q Data transfer phase functions PPS Q Connectionless service functions PPS Q Management functions PPS SPS_P5, Edice 2,

7 Paragraf normy Q Název Závaznost Poznámka Routing and translation functions (for further study) PPS Pro směrování mezi sítěmi v národní síti se používá vždy hodnota parametru Routing Indicator = 0 (Routing on Global Title) SPS_P5, Edice 2,

8 Paragraf normy ETS Název Závaznost Poznámka Integrated Services Digital Network (ISDN) ; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 1: Protocol speciffication [ ITU-T Recommendations Q.711 to Q.714 and Q. 716 (1993), modified] Q.712 Definition and Function of Signalling Connection Control Part Messages Q Signalling connection control part PPS messages (SCCP) Q connection confirm (CC) PPS Q connection request (CR) PPS Q connection refused (CREF) PPS Q data acknowledgement (AK) PPS Q data form 1 (DT1) PPS Q data form 2 (DT2) PPS Q expedited data (ED PPS Q expedited data acknowledgement (EA) PPS Q inactivity test (IT) PPS Q protocol data unit error (ERR) PPS Q released (RLSD) PPS Q release complete (RLC) PPS Q reset confirm (RSC) PPS Q reset request (RSR) PPS Q subsystem-allowed (SSA) PPS Q subsystem-out-of-service-grant (SOG) PPS Q subsystem-out-of-service-request (SOR) PPS Q subsystem-prohibited (SSP) PPS Q subsystem-status-test (SST) PPS Q unitdata (UDT) PPS Q unitdata service (UDTS) PPS Q extended unitdata (XUDT) PPS Q extended unitdata service (XUDTS) PPS Q SCCP parameter - Q affected point code PPS Q affected subsystem number PPS Q calling/called party address PPS Q credit PPS Q data PPS Q diagnostic PPS Q error cause PPS Q end of optional parameters PPS Q local reference number PPS (source/destination) Q protocol class PPS Q receive sequence number PPS Q refusal cause PPS Povinné při poskytování služby, která některou ze služeb (třídu služby) SCCP vyžaduje - SPS_P5, Edice 2,

9 Paragraf normy Název Závaznost Poznámka Q release cause PPS Q reset cause PPS Q return cause PPS Q segmenting/reassembling PPS Q sequencing/segmenting PPS Q subsystem multiplicity indicator PPS Q hop counter PPS Q segmentation PPS Q Inclusion of fields in the messages PPS SPS_P5, Edice 2,

10 Paragraf normy ETS Název Závaznost Poznámka Integrated Services Digital Network (ISDN) ; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 1: Protocol speciffication [ ITU-T Recommendations Q.711 to Q.714 and Q. 716 (1993), modified] Povinné při poskytování služby, která některou ze služeb (třídu služby) SCCP vyžaduje Q.713 Signalling Connection Control Part - Formats and Codes Q General PPS Q Routing label PPS Q Message type code PPS Q Formatting principles PPS Q Mandatory fixed part PPS Q Mandatory variable part PPS Q Optional part PPS Q End of optional parameters octet PPS Q Order of transmission PPS Q Coding of spare bits PPS Q National message types and parameters PPS Q Coding of the general parts - Q Coding of the message type PPS Q Coding of the length indicator PPS Q Coding of the pointers PPS Q SCCP parameters PPS Q End of optional parameters PPS Q Destination local reference PPS Q Source local reference PPS Q Called party address PPS Q Address indicator PPS Q Address PPS Q Signalling point code PPS Q Subsystem number PPS Q Global title PPS Q Global title indicator = 0001 NA Podle ETS se vyžaduje předávání parametru Global title na rozhraní mezi sítěmi Q Global title indicator = 0010 NA Podle ETS se vyžaduje předávání parametru Global title na rozhraní mezi sítěmi SPS_P5, Edice 2,

11 Paragraf normy Název Závaznost Poznámka Q Global title indicator = 0011 NA Podle ETS se vyžaduje předávání parametru Global title na rozhraní mezi sítěmi Q Global title indicator = 0100 PPS Q Calling party address PPS Q Protocol class PPS Q Segmenting/reassembling PPS Q Receive sequence number PPS Q Sequencing/segmenting PPS Q Credit PPS Q Release cause PPS Q Return cause PPS Q Reset cause PPS Q Error cause PPS Q Refusal cause PPS Q Data PPS Q Segmentation PPS Q Hop counter PPS Q SCCP messages and codes - Q General - Q Connection request (CR) PPS Q Connection confirm (CC) PPS Q Connection refused (CREF) PPS Q Released (RLSD) PPS Q Release complete (RLC) PPS Q Data form 1 (DT1) PPS Q Data form 2 (DT2) PPS Q Data acknowledgement (AK) PPS Q Unitdata (UDT) PPS Q Unitdata service (UDTS) PPS Q Expedited data (ED) PPS Q Expedited data acknowledgement (EA) PPS Q Reset request (RSR) PPS Q Reset confirmation (RSC) PPS Q Protocol data unit error (ERR) PPS Q Inactivity test (IT) PPS Q Extended unitdata (XUDT) PPS Q Extended unitdata service (XUDTS) PPS Q SCCP Management messages and codes - Q General PPS Q SCMG format identifier PPS Q Formatting principles PPS Q SCMG message parameters PPS Q End of optional parameters PPS Q Affected SSN PPS Q Affected PC PPS Q Subsystem multiplicity indicator (for further study) PPS SPS_P5, Edice 2,

12 Paragraf normy Název Závaznost Poznámka Q SCMG messages PPS Q.713 Annex A Mapping for cause parameter value PPS Q.713 A1 Introduction PPS Q.713 A2 Connection refusal PPS Q.713 A3 Connection release PPS Q.713 A4 Connection reset PPS SPS_P5, Edice 2,

13 Paragraf normy ETS Název Závaznost Poznámka Integrated Services Digital Network (ISDN) ; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 1: Protocol speciffication [ ITU-T Recommendations Q.711 to Q.714 and Q. 716 (1993), modified] Povinné při poskytování služby, která některou ze služeb (třídu služby) SCCP vyžaduje Q.714 Signalling Connection Control Part - Procedures Q Introduction - Q General characteristics of signalling - connection control procedures Q Purpose PPS Q Protocol classes PPS Class 3 se podle ETS nepodporuje Q Protocol class 0 PPS Q Protocol class 1 PPS Q Protocol class 2 PPS Q Protocol class 3 PPS Class 3 se podle ETS nepodporuje Q Signalling connections PPS Q Compatibility and handling of - unrecognized information Q Rules for forward compatibility PPS Q Handling of unrecognized messages or PPS parameters Q PPS Q Connection establishment PPS Q Data transfer PPS Q Connection release PPS Q Overview of procedures for - connectionless services Q General PPS Q Segmentation/reassembly PPS Q Structure of the SCCP and contents of PPS specification Q Addressing and routing - Q SCCP adressing PPS Q SCCP routing principles PPS Q Receipt of SCCP messages transferred by PPS a MTP Q Messages from connection-oriented or connectionless control to SCCP routing control PPS SPS_P5, Edice 2,

14 Paragraf normy Název Závaznost Poznámka Q DPC present PPS Q DPC not present PPS Q SCCP routing PPS Q Receipt of SCCP messages transferred by PPS the MTP Q Messages from connectionless or PPS connection-oriented control to SCCP routing control Q Routing failures PPS Q Connection-oriented procedures - Q Connection establishment - Q General PPS Q Local reference numbers PPS Q Negotiation procedures - Q Protocol class negotiation PPS Q Flow control credit negotiation PPS Q Actions at the origination node - Q Initial actions PPS Q Subsequent actions PPS Q Actions at an intermediate node - Q Initial actions PPS Q Subsequent actions PPS Q Actions at the destination node - Q Initial actions PPS Q Subsequent actions PPS Q Connection refusal PPS Q Actions at node initiating connection PPS refusal Q Actions at inermediate node initiating PPS connection refusal Q Actions at the origination node not PPS initiating connection refusal Q Connection release - Q General PPS Q Frozen reference PPS Q Actions at an end node initiating - connection release Q Initial actions PPS Q Subsequent actions PPS Q Actions at intermediate node PPS Q Initial actions PPS Q Subsequent actions PPS Q Actions at an end node not initiating PPS connection release Q Inactivity control PPS Q Data transfer - Q General PPS Q Actions at the origination node PPS Q Actions at the intermediate node PPS Q Actions at the destination node PPS SPS_P5, Edice 2,

15 Paragraf normy Název Závaznost Poznámka Q Flow control - Q General PPS Q Sequence numbering PPS Q Flow control window PPS Q Flow control procedures - Q Transfer of Data messages PPS Q Transfer of Data Acknowledgement PPS messages Q Reception of a Data or Data PPS Acknowledgement messages Q Segmenting and reassembly PPS Q Expedited data transfer - Q General PPS Q Actions at the originating node PPS Q Actions at intermediate node PPS Q Actions at destination node PPS Q Reset - Q General PPS Q Action at the initiating node - Q Initial actions PPS Q Subsequent actions PPS Q Actions at the intermediate node - Q Initial actions PPS Q Subsequent actions PPS Q Action at the destination node PPS Q Handling of messages during the reset PPS procedures Q Restart - Q General PPS Q Actions at the recovered node - Q Initial actions PPS Q Subsequent actions PPS Q Actions at the non-failed far end node PPS Q Permanent signalling connections PPS Q Abnormalities - Q General PPS Q Action tables PPS Q Actions upon the reception of an ERR PPS message Q Connectionless procedures PPS Q Data transfer PPS Q Segmentation/reassembly - Q Segmentation - Q General PPS Q Normal procedures PPS Q Return on error procedures PPS Q Reassembly - Q General PPS Q Normal procedures PPS Q Return on error procedures PPS SPS_P5, Edice 2,

16 Paragraf normy Název Závaznost Poznámka Q Message return PPS Q Syntax error PPS Q SCCP management procedures - Q General PPS Q Signalling point status management - Q General PPS Q Signalling point prohibited PPS Q Signalling point allowed PPS Q Signalling point congested PPS Q Local MTP availability PPS Q Subsystem status management - Q General PPS Q Subsystem prohibited PPS Q Receipt of message for a prohibited PPS subsystem (response method) Q Receipt of Subsystem- Prohibited message PPS or N-STATE request primitive or local user failed Q Subsystem allowed PPS Q Subsystem status test - Q General PPS Q Action at the initiating node PPS Q Actions at the receiving node PPS Q Coordinated state change - Q General PPS Q Actions at the requesting node PPS Q Actions at the requested node PPS Q Local broadcast - Q General PPS Q User-out-of-service PPS Q User-in-service PPS Q Signalling point inaccessible PPS Q Signalling point remote SCCP accessible PPS Q Signalling point congested PPS Q Broadcast - Q General PPS Q Subsystem prohibited PPS Q Subsystem allowed PPS Q MTP/SCMG restart PPS Q.714 Annex A State diagrams for the signalling PPS connection control part of Signalling System No. 7 Q.714 A1 Introduction PPS Q.714 A2 Symbol definition of the state diagrams at PPS the message interface Q.714 A3 Order definition of the state diagrams PPS Q.714 Annex B Action tables for the signalling connection PPS control part of Signalling System No. 7 Q.714 B1 Introduction PPS SPS_P5, Edice 2,

17 Paragraf normy Název Závaznost Poznámka Q.714 B2 Symbol definition of the action tables PPS Q.714 B3 Table of contents PPS Q.714 Annex C State transition diagrams (STD) for the PPS signalling connection control part of Signalling System No. 7 Q.714 C1 General PPS Q.714 C2 Drafting conventions PPS Q.714 C3 Figures PPS Q.714 C4 Abbreviations and timers PPS Q.714 Annex D State transition diagrams (STD) for SCCP PPS management control Q.714 D1 General PPS Q.714 D2 Drafting conventions PPS Q.714 D3 Figures PPS Q.714 D4 Abbreviations and timers PPS Q.714 Annex E Guidelines for the use the address information elements in the international network PPS SPS_P5, Edice 2,

18 Paragraf normy ETS Název Závaznost Poznámka Integrated Services Digital Network (ISDN) ; Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to support international interconnection; Part 1: Protocol speciffication [ ITU-T Recommendations Q.711 to Q.714 and Q. 716 (1993), modified] Povinné při poskytování služby, která některou ze služeb (třídu služby) SCCP vyžaduje Q.716 Signalling Connection Control Part - (SCCP) Performance Q General - Q Overview PPS Q Definitions PPS Q Definition of performance parameters PPS Q Performance parameter definitions for the - connectionless classes Q Quality of service parameters PPS Q Internal parameters PPS Q Performance parameter definitions for the - connection oriented classes Q Quality of service parameters PPS Q Internal parameters PPS Q Correspondence between the QOS PPS parameters and the class Q Specified values for internal parameters - Q Internal parameters for classes 0 and 1 - Q Transit time of a UDT message in a relay PPS point Q Unavailability of a relay point PPS Q Internal parameters for classes 2 and 3 - Q Transit time of a CR message at a relay PPS point without coupling Q Transit time of a CR message in a relay PPS point with coupling Q Transit time of a CC message in a relay PPS point with coupling Q Transit time of a DT message in a relay PPS point with coupling Q Unavailability of a relay point without PPS coupling Q Unavailability of a relay point with PPS coupling Q Influence of new SS No. 7 applications PPS SPS_P5, Edice 2,