1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.2971 C (1 2/1999) SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling Digital Subscriber signalling system No. 2 - User-network interface layer 3 specifica
2、tion for poi nt-to-m ulti point callkon nection control : Test Suite Structure and Test Purposes (TSS all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the c
3、urrently valid ITU-T Recommendations is regularly published. i ITU-T Recommendation 4.2971 (1995), Digital subscriber signalling system No. 2 - User-Network interface layer 3 specijkation for point-to-multipoint callUconnection control. 2 ITU-T Recommendation 1.4 13 (1 993), B-ISDN user-network inte
4、rface. 3 ETSI ETS 300 771-3 (1998), Broadband Integrated Services Digital Network (23-ISDN); Digital Subscriber Signalling System No. two (aSS2) protocol; B-ISDN user-network inte flace layer 3 specijkation for point-to-multipoint callhearer control; Part 3: Test Suite Structure and Test Purposes (T
5、SS %-g+k+ Page 11, subclause 6.1.3 Modify the subclause as below: “6.1.3 Test strategy As the base standard ETS 300 771-1 i contains no explicit requiremenrs for testing, the TPs were generated as a result of an analysis of the base ITU-T Recommendation- only the requirements fiom the point of view
6、of the TB or coincident SB and TB reference point are considered; whether or not a test case can be built fiom the TP is not considered.“ ETC! 3P 771 2. The criteria applied include the following: - - 2 ITU-T 4.2971 C (12/1999) Pages 52 to 53, subclause 6.2.1.5.9, test purposes L3MU-21-37 to L3MU-21
7、-39 Modify test purposes as below: “L3MU-21-37 Ensure that the IUT in U4 and P4 for party 1 and P4 for party 2, on receipt of a DROP PARTY message (Optional information element with content error present, IE instruction field flag = IE instruction field not significant, Endpoint reference value = pa
8、rty 2), optionallv sends a STATUS message (Cause = value 100 and optional diamostics field cam g. correct IE identifier. Call state value = 4. Endpoint reference value = partv 2, Endpoint reference partv state = 6) followed bv a DROP PARTY ACKNOWLEDGE I message az - !VV, C-2 - 4, - ?O - W ULby 1 Y “
9、 -, remains in P4 for party 1, enters PO for party 2 and remains in U4. L3MU-21-38 Ensure that the IUT in U10 and P7 for party 1 and P4 for party 2, on receipt of a DROP PARTY message (Optional information element with content error present, IE instruction field flag = IE instruction field not signi
10、ficant, Endpoint reference value = party 2), optionallv sends a STATUS message (Cause = value 100 and optional diamostics field cam g. correct IE identifier. Call state value = 10. Endpoint reference value = partv 2, Endpoint reference partv state = 6) followed bv a DROP PARTY ACKNOWLEDGE I message
11、az - 1V-z - IV, - ?O - W ULby 1 Y “ -, remains in P7 for party 1, enters PO for party 2 and remains in U10. L3MU-21-39 Ensure that the IUT in U10 and P7 for party 1 and P7 for party 2, on receipt of a DROP PARTY message (Optional information element with content error present, IE instruction field f
12、lag = IE instruction field not significant, Endpoint reference value = party 2), optionallv sends a STATUS message (Cause = value 100 and optional diagnostics field cam g: correct IE identifier. Call state value = 10. Endpoint reference value = partv 2, Endpoint reference partv state = 6) followed b
13、y a DROP PARTY ACKNOWLEDGE I messageas u. STLAxTLTS -2 - !VV, C-2 - IV, - 30 - W ULby 1 Y “ rrrlar, remains in P7 for party 1, enters PO for party 2 and remains in U10.“ Page 86, subclause 6.2.2.4.8, test purposes L3MU-43-25 to L3MU-43-27 Modify test purposes as below: “L3MU-43-25 Ensure that the IU
14、T in U7 and P3 for party 1 and P3 for party 2, on receipt of a DROP PARTY message (Optional information element with content error present, IE instruction field flag = IE instruction field not significant, Endpoint reference value = party 2), optionallv sends a STATUS message (Cause = value 100 and
15、optional diamostics field cam g. correct IE identifier. Call state value = 7. Endpoint reference value = partv 2, Endpoint reference partv state = 6) followed bv a DROP PARTY ACKNOWLEDGE messageaz - !VV, C-2 - 7, - ?O - W ULbJ 1 Y “ -, remains in P3 for party 1, enters PO for party 2 and remains in
16、U7. Selection: IUT stable in U7 and P3. ITU-T 4.2971 C (12/1999) 3 L3MU-43-26 Ensure that the IUT in U10 and P7 for party 1 and P3 for party 2, on receipt of a DROP PARTY message (Optional information element with content error present, IE instruction field flag = IE instruction field not significan
17、t, Endpoint reference value = party 2), optionallv sends a STATUS message (Cause = value 100 and optional diamostics field cam correct IE identifier. Call state value = 10. Endpoint reference value = partv 2, Endpoint reference partv state = 6) followed bv a DROP PARTY ACKNOWLEDGE messageaz - !E, C-
18、2 - !e, - ?O - W ULby 1 Y “ -, remains in P7 for party 1, enters PO for party 2 and remains in U10. Selection: IUT stable in U7 and P3. L3MU-43-27 Ensure that the IUT in U10 and P7 for party 1 and P7 for party 2, on receipt of a DROP PARTY message (Optional information element with content error pre
19、sent, IE instruction field flag = IE instruction field not significant, Endpoint reference value = party 2), optionally sends a STATUS message (Cause = value 100 and optional diagnostics field carwing correct IE identifier. Call state value = 10. Endpoint reference value = partv 2, Endpoint referenc
20、e partv state = 6) followed by a DROP PARTY ACKNOWLEDGE messages u. STLA,T,TS -2 !E, C-2 !e, rrrlar, remains in P7 for party 1, enters PO for party 2 and remains in U10.“ I - - - 30 - W ULbJ 1 Y “ Page 94, History Delete the whole clause “History“. APPENDIX I Bibliography A ETSI Standard ETS 300 771
21、-1 (1997), Broadband Integrated Services Digital Network (23-ISDN); Digital Subscriber Signalling System No. two (aSS2) protocol; B-ISDN user-network interface layer 3 specijkation for point-to-multipoint callhearer control; Part 1: Protocol specijkation. 4 ITU-T 4.2971 C (12/1999) Series A Series B
22、 Series C Series D Series E Series F Series G Series H Series I Series J Series K Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z ITU-T RECOMMENDATIONS SERIES Organization of the work of the ITU-T Means of expression: defi
23、nitions, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual and mult
24、imedia systems Integrated services digital network Transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maintenance: international transmission
25、systems, telephone telegraphy, facsimile and leased circuits Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks Switching and signalling Telegraph transmiss
26、ion Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems circuits, Printed in Switzerland Geneva, 2001
