SSCF NNI R1 ANSI 95



Contents

1General



1.1Introduction



1.2Terms



1.3Concept



1.4History




2
Compliance Lists



2.1SSCF NNI (T1.645)




3
Notes




Reference List













1   General


1.1   Introduction



Ericsson AB SSCF NNI ANSI version R1 is compliant with the ANSI standard Reference [1] according to the table in this document.



1.2   Terms



ANSI American National Standards Institute
ATM Asynchronous Transfer Mode
B-ISDN Broadband Integrated Services Network
FSN Forward Sequence Number
LM Layer Management
MTP Message Transfer Part
NNI Node Network Interface
PC Protocol Capabilities
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
SAAL Signalling ATM Adaptation layer
SoC Statement of Compliance
SP System Parameters
SSCF Service Specific Coordination Functions
SSCOP Service Specific Connection Oriented Protocol



1.3   Concept



The terms that are used are:



C Ericsson Signalling Solution module complies with the
specified paragraph in the standard.  
N	 Ericsson Signalling Solution module does not comply
with the specified paragraph in the standard.  
P	 Ericsson Signalling Solution module complies partly
with the specified paragraph in the standard. Specify in a note what in the
module that does comply and what that does not. 
 - There is nothing to implement in the referred paragraph
(used in column “C”).


1.4   History




Table 1    





Revision




Date




Autor




Comment





A




2002-08-09




Mats Jarlstedt




Approved after document inspection.







B




2007-02-19




XMRALBA




Converted to XML







C




2007-09-27




XMREVEF




Minor changes





2   Compliance Lists



2.1   SSCF NNI (T1.645)





Table 2    Compliance List





Reference




C




N




P




Comments





1 




Scope, purpose, and application




-



 


 


 






2 




Normative References




-



 


 


 






3 




Acronyms




-



 


 


 






4 




General




-



 


 


 






5 




Services provided by the SAAL at the NNI




X



 


 


 






6 




Functions of the SSCF at the NNI




-



 


 


 






6.1 




Functions with no peer-to-peer messages




X



 


 


 






6.1.1 




Mapping




X



 


 


 






6.1.2 




Local retrieve




X



 


 


 






6.1.3 




Flow control



 


 



X




 Note 1







6.1.4 




Change link status




X



 


 


 






6.1.5 




Reporting to layer management




X



 


 


 






6.2 




Functions with peer-to-peer messages




X



 


 


 






6.2.1 




Processor outage




X



 


 


 






6.2.2 




Alignment procedure




X



 


 


 






6.3 




Signalling protocol stack for NNI




X



 


 


 






7 




Definition of the boundary between the SSCF with Layer 3 at the
NNI




-



 


 


 






7.1 




Primitives




X



 


 


 






7.2 




State transition diagram




X



 


 


 






8 




Definition of the boundary between the SSCF at the NNI and the
SSCOP




-



 


 


 






8.1 




Repertoire of signals between SSCF and SSCOP




X



 


 


 






8.2 




Sequences of signals between SSCF and SSCOP




X



 


 


 






9 




Definition of the boundary between the SSCF and the Layer Management




X



 


 


 






10 




Protocol elements for peer-to-peer Communication




X



 


 


 






11 




Default parameters and timers




X



 


 


 






12 




State transition table of SSCF at the NNI




X



 


 



 Note 2,  Note
3







Annex A, 




Protocol Implementation conformance Statement (PICS) pro forma
to ANSI T1.645-1995




-



 


 


 





 



A.1 General




-



 


 


 





 



A.2 Abbreviations and special symbols




-



 


 


 





 



A.3 Instructions for completing the PICS pro forma




-



 


 


 





 



A.4 Global statement of conformance




-



 


 


 





 



A.5 SSCOP-ANSI T1.637




-



 


 


 





 



A.5.1 Protocol Capabilities (PC)  SSCOP




-



 


 


 





 



A.5.2 SSCOP PDUs  Protocol Data Units (PD)




-



 


 


 





 



A.5.3 SSCOP System Parameters (SP)




-



 


 


 





 



A.6 SSCF at NNI -ANSI T1.645




-



 


 


 





 



A.6.1 SSCOP-SSCF NNI Protocol Capabilities (SNPC)




-



 


 


 





 



A.6.2 SSCF at NNI System Parameters (SNSP)




-



 


 


 






Annex B,




 Impacts of SAAL om MTP-3




-



 


 


 





 



B.1 Frame format of MTP-3 + B-ISUP message




-



 


 


 





 



B.2 Octet transmission order




-



 


 


 





 



B.3 Size of FSN in changeover message




-



 


 


 





 



B.4 Proving ends due to a processor outage condition




-



 


 


 





 



B.5 Automatic allocation of signalling data links




-



 


 


 






Annex C,




Flow diagrams




-



 


 


 






Annex D, 




SDL diagrams for the SSCF at the NNI




-



 


 


 






Annex E,




 Differences between this standard and ITU-T Recommendation Q.2140




-



 


 


 






Annex F,




 Bibliography




-



 


 


 



3   Notes



Note 1 Flow control of PDUs to layer 1
is not implemented in SSCF NNI. The interface to the layer 1 is hardware independent.
Note 2 The default values described in
the standard are for a 64 kbit/s link. In the product documents are the default
values for a 2Mbit/s link.
Note 3 Due to inconsistencies between the
standards for LM (see Reference [2]) and SSCF NNI, the LM standards
version is used to implement AA_RELEASE_indication, source=user, when in state
3/10/5.



Reference List


ANSI standards
[1] [ANSI-1] American National Standard for Telecommunication,  for Telecommunications
-   B-ISDN ATM Adaptation Layer- Service Specific Coordination Function for
Support of Signalling at the Network Node Interface (SSCF at NNI), ANSI T1.645
-1995
[2] [ANSI-2] American National
Standard for Telecommunication,    for Telecommunications - B-ISDN ATM Adaptation
Layer - Layer management for the SAAL at the Network Node Interface (NNI),
 ANSI T1.652 -1996
















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     SSCF NNI R1 ANSI 95