SAAL SSCF-NNI for ITU

1	General
1.1	Introduction
1.2	Terms
1.3	Concept
1.4	History
2	Compliance List
2.1	SSCF-NNI (ITU-T Q.2140)
3	Notes
Reference List

1 General

1.1 Introduction

Ericsson AB SSCF NNI ITU version R1 is compliant with the ITU-T standard Reference [1] according to the Table 2 in this document.

1.2 Terms

ATM		Asynchronous Transfer Mode

B-ISDN		Broadband Integrated Services Network

FSN		Forward Sequence Number

ITU-T		International Telecommunication Union - Telecommunication

LM		Layer Management

MTP		Message Transfer Part

NNI		Node Network Interface

PC		Protocol Capabilities

PDU		Protocol Data Unit

PICS		Protocol Implementation Conformance Statement

SAAL		Signaling 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 module complies with the specified paragraph in the standard.

N		Ericsson module does not comply with the specified paragraph in the standard.

P		Ericsson 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 section (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 format
C	2007-09-27	XMREVEF	Minor changes

2 Compliance List

2.1 SSCF-NNI (ITU-T Q.2140)

Table 2 Compliance List, SSCF-NNI (ITU-T Q.2140)
References		C	P	Comments
1.	Scope	-
2.	Normative References	-
3.	Abbreviations	-
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	See 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		See Note 2 and Note 3.
Annex A, Protocol Implementation conformance Statement (PICS) pro forma to Recommendation Q.2140		-
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 Recommendation Q.2110	-
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 Recommendation Q.2140	-
A.6.1	SSCOP-SSCF NNI Protocol Capabilities (SNPC)	-
A.6.2	SSCF at NNI System Parameters (SNSP)	-
Appendix I, Impacts of SAAL on MTP-3		-
I.1	Frame format of MTP-3 + B-ISUP message	-
I.2	Octet transmission order	-
I.3	Size of FSN in changeover message	-
I.4	Proving ends due to a processor outage condition	-
I.5	Automatic allocation of signalling data links	-
Appendix II, Example time flow diagrams for connection establishment		-
Appendix III, SDL Diagrams for the SSCF at the NNI		-

3 Notes

Note 1		Flow control of PDUs to layer 1 is not implemented in SSCF NNI. The interface to layer 1 is hardware dependent.

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

ITU standards
[1] International Telecommunication Union, Telecommunication standardization Sector of ITU. B-ISDN ATM Adaptation Layer- Service Specific Coordination Function for signalling at the Network Node Interface (SSCF at NNI), Recommendation Q.2140 (02/95).
[2] International Telecommunication Union, Telecommunication Standardization Sector of ITU. B-ISDN signalling ATM Adaptation Layer (SAAL)- Layer management for the SAAL at the Network Node Interface (NNI), Recommendation Q.2144 (10/95).