SS7 MTP-L3 and M3UA IETF TTC 2002

1	GENERAL
1.1	Introduction
1.2	Concept
2	Compliance Lists
2.1	JT-Q701
2.2	JT-Q704
2.3	JT-Q707
2.4	JT-Q2210
3	Notes and Comments
Glossary
Reference List

1 GENERAL

1.1 Introduction

This document describes to what extent the Ericsson SS7 MTPL3& M3UA IETF signaling component conforms with the standards Reference [1], Reference [2], Reference [3], and Reference [4].

1.2 Concept

The terms that are used are:

C	The Ericsson signaling component complies with the specified section in the standard.

N	The Ericsson signaling component does not comply with the specified section in the standard.

P	The Ericsson signaling component complies partly with the specified section in the standard.

-	There is nothing to implement in the referred section (always placed in column C).

2 Compliance Lists

2.1 JT-Q701

Table 1
References	C	N	P	Comments
1. Introduction	X
2. Signaling system structure	X
3. Message Transfer Part and the signaling network	-
3.1 General	-
3.1.1 Signaling network components			X	Note 1 on NOTE1
3.1.2 Signaling modes	X
3.1.3 Signaling point modes	X
3.1.4 Message labelling	X
3.2 Signaling message handling functions	X
3.3 Signaling network management functions	X
3.4 Testing and maintenance functions	X
3.5 Use of signaling network	X
4 Message transfer capability	X
5 Differences from Blue Book	-			See Section 2.2
6 Compatibility in the Message Transfer Part	X
7 Interworking of yellow, red and blue MTP implementation	-
7.1 Yellow Book to Red Book interworking		X
7.1.1 Level 2 flow control		X
7.1.2 Transfer restricted and Transfer controlled procedures		X
7.1.3 Transfer allowed/Transfer prohibited acknowledgments		X
7.1.4 Management inhibiting procedure		X
7.2 Red Book to Blue Book interworking	-
7.2.1 Signaling Point Restart		X
7.2.2 Q.703 and Q.704 timer values	X
7.2.3 User flow control	X
7.2.4 Management inhibit test procedure		X
7.2.5 SIF length increase		X
7.2.6 SIF length increase (National networks option)		X
7.2.7 Processor outage		X
7.3 Yellow Book to Blue Book interworking		X
7.4 Blue Book to the present version interworking	X
7.5 Red Book to the present version interworking	X
8 Primitives and parameters of the Message Transfer Part	X

2.2 JT-Q704

Table 2
References	C	N	P	Comments
1 Introduction	-
1.1 General characteristics of the signaling network functions	X
1.2 Signaling message handling	X
1.3 Signaling network management			X	Note 2 on NOTE2, Note 3 on NOTE3
2 Signaling message handling	X
3 Signaling network management	-
3.1 General			X	Note 2 on NOTE2
3.2 Status of signaling links	X
3.3 Procedures used in connection with link status changes	-
3.3.1 Signaling link failed	X
3.3.2 Signaling link restored	X
3.3.3 Signaling link deactivated	X
3.3.4 Signaling link activated	X
3.3.5 Signaling link blocked			X	Note 6 on NOTE6
3.3.6 Signaling link unblocked	X
3.3.7 Signaling link inhibited	X
3.3.8 Signaling link uninhibited	X
3.4 Status of signaling routes3.3.8 Signaling link uninhibited	X
3.5 Procedures used in connection with route status changes	X
3.6 Status of signaling points	X
3.7 Procedures used in connection with point status changes	X
3.8 Signaling network congestion	X
4 Signaling traffic management	-
4.1 General	-
4.2 Normal routing situation	X			Note 7 on NOTE7
4.3 Signaling link unavailability	X
4.4 Signaling link availability	X
4.5 Signaling route unavailability	X
4.6 Signaling route availability	X
4.7 Signaling route restriction	X
4.8 Signaling point availability	X
5 Changeover	-
5.1 General	X
5.2 Network configurations for changeover	X
5.3 Changeover initiation and actions	X
5.4 Buffer updating procedure	X
5.5 Retrieval and diversion of traffic	X
5.6 Emergency changeover procedures			X	Note 4 on NOTE4
5.7 Procedures in abnormal conditions	X
6 Changeback	X
7 Forced rerouting	X
8 Controlled rerouting initiation and actions	X
9 MTP restart	X
10 Management inhibiting	X
11 Signaling traffic flow control	X
12 Signaling link management	-
12.1 General			X	Note 2 on NOTE2
12.2 Basic signaling link management procedures	X
12.3 Signaling link management procedures based on automatic allocation of signaling terminals	X
12.4 Signaling link management procedures based on automatic allocation of signaling data links	X
12.5 Automatic allocation of signaling terminals	X
12.6 Automatic allocation of signaling data links	X
12.7 Different signaling link management procedures at the two ends of a link set	X
13 Signaling route management	-
13.1 General	X
13.2 Transfer prohibited	X
13.3 Transfer-allowed	X
13.4 Transfer-restricted (National option)	X
13.5 Signaling-route-set-test	X
13.6 Transfer-controlled (International network)	X
13.7 Transfer-controlled (National option with congestion priorities)	X
13.8 Transfer-controlled (National option without congestion priorities)	X
13.9 Signaling-route-set-congestion-test (National Option)	X
14 Common characteristics of message signal unit formats	-
14.1 General	X
14.2 Service information octet	-
14.2.1 Service indicator (SI)	X
14.2.2 Sub-service field (SSF)	X			Note 8 on NOTE8
14.3 Label	-
15 Format and codes of signaling network management messages	-
15.1 General	X
15.2 Label	X
15.3 Heading code (H0)	X
15.4 Changeover message	X
15.5 Changeback message	X
15.6 Emergency changeover message	X
15.7 Transfer-prohibited message	X
15.8 Transfer-allowed message	X
15.9 Transfer-restricted message (national option)	X
15.10 Signaling-route-set-test message	X
15.11 Management inhibit message	X
15.12 Traffic restart allowed message	X
15.13 Signaling-data-link-connection-order message		X
15.14 Signaling-data-link-connection-acknowledgement message		X
15.15 Transfer-controlled message	X
15.16 Signaling-route-set-congestion-test message (national option)	X
15.17 User Part unavailable message	X
16 Static transition diagrams, abbreviations and timers	-
16.1 General	-
16.2 Drafting conventions	-
16.3 Signaling message handling	-
16.4 Signaling traffic management	-
16.5 Signaling link management	-
16.6 Signaling route management	-
16.7 Abbreviations used in Figures 23 onwards	-
16.8 Timers and timer values			X	Note 5 on NOTE5

2.3 JT-Q707

Table 3
References	C	N	P	Comments
1 General	-
2 Testing	X
3 Fault location	-
4 Signaling network monitoring	-
5 Formats and codes of signaling network testing and maintenance messages	X
6 State transition diagrams	X

2.4 JT-Q2210

Ericsson SS7 MTP-L3 TTC version R1 is compliant with TTC JT-Q2210 except for the deviations from TTC JT-Q704 (see Section 2.2).

3 Notes and Comments

Note 1	Link groups not supported.

Note 2	Automatic allocation or reconfiguration of signaling equipment is not supported.

Note 3	See the notes for the individual signaling network management messages (clause 15).

Note 4	No difference between long- and short-term processor outage. All emergency changeovers are treated as being initiated by a long-term processor outage.

Note 5	The following timers are not implemented: T7, T9, T11, T24.

Note 6	Timer T24 not used. Signaling traffic management commences without interruptions.

Note 7	Priorities are not set on a per linkset basis, instead priorities are set on routes in routesets.

Note 8	The spare bits are sent transparently to/from the User Part and they are always used as priority bits.

Glossary

MSU

Message Signaling Unit

MTP

Message Transfer Part

SIF

Signaling Information Field

Reference List

TTC Standards
[1] JT-Q701, Version 2, Nov. 28, 1990
[2] JT-Q704, Version 4, May 30, 2002
[3] JT-Q707, Version 2, Nov. 28, 1990
[4] JT-Q2210, Version 1, Apr. 24, 1996

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