MTP LEVEL 3
TEST NUMBER:	2.4.1	PAGE: 	1 of 1		
REFERENCE:	Q.704 Fig. 26; §2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing within a linkset – all links available			
PURPOSE:	To check the load sharing within a linkset with all the links available			
PRE–TEST CONDITIONS:	Signalling linkset activated			
CONFIGURATION:	A	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
			SP		A		SP	B	
	Link		Link	
:Start traffic			
	1 – 1			TRAFFIC	 ----------------->		
	<----------------	1 – 1		TRAFFIC	
	1 – 2			TRAFFIC	 ----------------->		
	<----------------	1 – 2		TRAFFIC	
	1 – 3			TRAFFIC	 ----------------->		
	<----------------	1 – 3		TRAFFIC	
	1 – 4			TRAFFIC	 ----------------->		
	<----------------	1 – 4		TRAFFIC	
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start traffic to B (and C in VAT) for all SLS.	
2.	Stop traffic, check that the messages have been transmitted on the correct link in accordance with the SLS field.	
3.	Check that there was no loss of messages, no duplication and no missequencing.	

MTP LEVEL 3
TEST NUMBER:	2.4.2	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26; § 2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing within a linkset – one link unavailable			
PURPOSE:	To check the load sharing within a linkset when one link is unavailable			
PRE–TEST CONDITIONS:	Signalling link 1 – 3 deactivated			
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
		SP		A		SP	B	
	Link			Link	
:Start traffic			
	1 – 1		TRAFFIC	 ----------------->		
	<----------------		1 – 1			TRAFFIC	
	1 – 2		TRAFFIC	 ----------------->		
	<----------------		1 – 2		TRAFFIC	
	1 – 4	TRAFFIC	 ----------------->		
	<----------------		1 – 4		TRAFFIC	
 :Wait			
 :Stop traffic			
			
TEST DESCRIPTION			
1.	Start the traffic to B and C for all SLS, wait and stop.	
2.	Check that the messages have been transmitted on the correct link in accordance with the SLS field on the remaining links.	

MTP LEVEL 3
TEST NUMBER:	2.5.1	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26; § 2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing between linksets – between two linksets			
PURPOSE:	To check the load sharing between two linksets under normal conditions			
PRE–TEST CONDITIONS:	All linksets and routes available			
CONFIGURATION:	B	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A		SP		B			SP	C	SP	E	
	Link				Link			Link		Link		
:Start traffic			
3 – 1		TRAFFIC	 -------------------------------->	7 – 1	 --------------->		
	<--------------------------------	3 – 1	<---------------	7 – 1		TRAFFIC	
3 – 2		TRAFFIC	 -------------------------------->	7 – 1	 -------------->		
	<--------------------------------	3 – 2	<--------------	7 – 1		TRAFFIC	
2 – 1		TRAFFIC	 ----------->	6 – 1	 ---------------------------------->		
2 – 2		TRAFFIC	----------->	6 – 1	 ---------------------------------->	 	
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start the traffic to E for all SLS.	
2.	Stop the traffic and check that the messages have been transmitted on the correct linkset in accordance with the SLS and DPC.	
3.	Check that there was no loss of messages, no duplication and no missequencing.	

MTP LEVEL 3
TEST NUMBER:	2.5.2	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26; § 2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing between linksets – between three linksets			
PURPOSE:	To check the load sharing between three linksets under normal conditions			
PRE–TEST CONDITIONS:	All linksets and routes available			
CONFIGURATION:	B	TYPE OF TEST: 	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A		SP		B			SP	C	SP	D	
	Link			Link				Link	Link	
 :Start traffic			
	1 – 1		TRAFFIC	 ------------------------------------------------------------------>		
	<------------------------------------------------------------------	1 – 1		TRAFFIC	
	1 – 2		TRAFFIC	 ------------------------------------------------------------------>		
	<------------------------------------------------------------------	1 – 2		TRAFFIC	
	3 – 1		TRAFFIC	----------------------------------->    8 – 1    ---------------->		
	3 – 2		TRAFFIC	 ----------------------------------->    8 – 1     ---------------->		
	2 – 1		TRAFFIC	 --------------->    5 – 1     ----------------------------------->		
	2 – 2		TRAFFIC	 --------------->    5 – 1     ----------------------------------->		
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start the traffic to D for all SLS.	
2.	Stop the traffic and check that the messages have been transmitted on the correct linkset and on the correct link in accordance with the SLS.	
3.	Check that there was no loss of messages, no duplication and no missequencing.	

MTP LEVEL 3
TEST NUMBER:	2.5.3	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26; § 2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing between linksets – between three linksets and one route unavailable			
PURPOSE:	To check the load sharing between three linksets when one route is unavailable			
PRE–TEST CONDITIONS:	Linksets 4 and 8 unavailable (TFP, PC = D from C to A)			
CONFIGURATION:	B	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A	SP	B				SP		C	SP	D	
	Link			Link					Link		Link	
:Start traffic			
	1 – 1		TRAFFIC	 ---------------------------------------------------------->		
	<----------------------------------------------------------		1 – 1		TRAFFIC	
	1 – 2		TRAFFIC	 ---------------------------------------------------------->		
	<----------------------------------------------------------		1 – 2		TRAFFIC	
	2 – 1		TRAFFIC	--------->    5 – 1    ---------------------------------->		
	2 – 2		TRAFFIC	 -------->    5 – 1     ---------------------------------->		
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start the traffic for all SLS, wait and stop.		
2.	Check that the traffic to D via C has been shared on the remaining linksets.		

MTP LEVEL 3
TEST NUMBER:	2.5.4	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26; § 2.3 Q.705 § 4.4			
TITLE:	Signalling message handling			
SUBTITLE:	Load sharing between linksets – between three linksets and one linkset unavailable			
PURPOSE:	To check the load sharing between two linksets after the unavailability of the third linkset	
PRE–TEST CONDITIONS:	Linkset 1 deactivated			
CONFIGURATION:	B	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A	SP		B					SP	C	SP	D	
	Link		Link					Link	Link	
:Start traffic			
	3 – 1		TRAFFIC	 ------------------------------->    8 – 1     ------------>		
	3 – 2		TRAFFIC	 ------------------------------->    8 – 1     ------------>		
	2 – 1		TRAFFIC	-------->    5 – 1     ----------------------------------->		
	<--------    2 – 1     <-----------------------------------	5 – 1		TRAFFIC	
	2 – 2		TRAFFIC	-------->    5 – 1     ---------------------------------->		
	<--------    2 – 2     <-----------------------------------	5 – 1		TRAFFIC	
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start the traffic for all SLS to D, wait and stop.		
2.	Check that the traffic has been shared on the remaining linksets.		

MTP LEVEL 3
TEST NUMBER:	2.6.1	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26			
TITLE:	Signalling message handling			
SUBTITLE:	Inaccessible destination – due to a linkset failure			
PURPOSE:	To check the signalling message handling when a destination becomes inaccessible due to a linkset failure	
PRE–TEST CONDITIONS:	Signalling linkset with one link available			
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A		SP	B	
	Link								Link		
:Start traffic			
	1 – 1		TRAFFIC			 ------------------>		
			<-----------------			1 – 1	TRAFFIC	
	1 – 1	:Deactivate		
			
TEST DESCRIPTION			
1.	Start the traffic for all SLS to B and C.		
2.	Deactivate the last link 1 – 1 and check that the linkset becomes unavailable.		
3.	Check that the SPs B and C become inaccessible.		
4.	Check that all messages stored or received after the unavailability of the linkset are discarded.		

P LEVEL 3
TEST NUMBER:	2.6.2	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26			
TITLE:	Signalling message handling			
SUBTITLE:	Inaccessible destination – due to a route failure			
PURPOSE:	To check the signalling message handling when a destination becomes inaccessible on reception of a TFP.	
PRE–TEST CONDITIONS:	All links and routes available			
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A		SP	B	
	Link		Link	
:Start traffic			
	1 – 1			TRAFFIC	---------------->	 	
	<----------------	1 – 1		TRAFFIC	
	1 – 2			TRAFFIC	 ---------------->		
	<---------------	1 – 2		TRAFFIC	
	1 – 3			TRAFFIC	 ---------------->		
	<---------------	1 – 3		TRAFFIC	
	1 – 4			TRAFFIC	 ---------------->		
	<---------------	1 – 4		TRAFFIC	
	<---------------	1 – X		TFP, PC=C	
			
TEST DESCRIPTION			
1.	Start the traffic to B and C for all SLS.		
2.	Provoke the sending of a TFP (PC=C) from SP B to SP A.		
3.	Check that the SP C becomes inaccessible.		
4.	Stop traffic.		
5.	Check that all messages stored or received after the inaccessibility have been discarded.		
6.	Check that traffic to B has not been disturbed.		

MTP LEVEL 3
TEST NUMBER:	2.6.3	PAGE:	1 of 1		
REFERENCE:	Q.704 Fig. 26			
TITLE:	Signalling message handling			
SUBITLE:	Inaccessible destination – due to a linkset and a route failure			
PURPOSE:	To check the signalling message handling when a destination becomes inaccessible due to a linkset and a route failure	
PRE–TEST CONDITIONS:	Linkset 4 unavailable			
CONFIGURATION:	B	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
SP	A						SP			B	SP	C	
	Link					Link	Link	
:Start traffic			
	1 – 1, 2	TRAFFIC	<-------------------------------------------------------------------------------->	SP	D	
	3 – 1		TRAFFIC	 ---------------------------------------------->	To D and E	
	<----------------------------------------------	  3 – 1	TRAFFIC (from E)	
	3 – 2		TRAFFIC	 ---------------------------------------------->	To D and E	
	<---------------------------------------------	  3 – 2	TRAFFIC (from E)	
	2 – 1		TRAFFIC	 -------------------------->    To D and E		
	2 – 2		TRAFFIC	 ------------------------->     To D and E		
		  7 – 1	:Deactivate	
	<-------------------------------------------	  3 – X  TFP, PC=E	
	2 – 1		TRAFFIC	 -------------------------->    To D and E		
	2 – 2		TRAFFIC	<---------------------  2 – 1 TRAFFIC
                            (from E)		
	------------------------->     To D and E		
	<------------------- -    2 – 2 TRAFFIC  
                  (from E)		
	2 – 1	:Deactivate		
	2 – 2	:Deactivate		
	1 – 1, 2	TRAFFIC	<-------------------------------------------------------------------------->	SP	D	
:Wait			
:Stop traffic			
Note – The transitory states (signalling network management procedures) are not described in this test which checks only the signalling message handling.	
TEST DESCRIPTION			
1.	Start the traffic to the SPs D and E for all SLS.	
2.	Initiate the sending of a TFP (DPC=E) from SP C to SP A, check that the traffic to E is routed via B and check that the traffic to D is not disturbed.	
3.	Deactivate the linkset 2 and check that the destination E becomes inaccessible. Stop traffic.	
4.	Check that all messages stored or received during the inaccessibility have been discarded.	

MTP LEVEL 3
TEST NUMBER:	2.7	PAGE:	1 of 1		
REFERENCE:	Q.704 § 2 Fig. 26			
TITLE:	Signalling message handling			
SUBTITLE:	Message transfer function			
PURPOSE:	To test the transfer function in an STP			
PRE–TEST CONDITIONS:	All links available			
CONFIGURATION:	C	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	STP	
MESSAGE SEQUENCE:			
		SP		B				SP		A	SP	C	
	Link				Link	Link	
:Start traffic			
	1 – 1, 2		TRAFFIC	 ------------>  2 – 1     ----------->		
	<------------  1 – 1, 2   <-----------	TRAFFIC	
:Wait			
:Stop traffic			
	
Note – The traffic used in this test is in conformance with the traffic model presented in Recommendation Q.706.	
			
TEST DESCRIPTION			
1.	Start traffic between B and C in both directions via A.		
2.	Check that transfer function is correctly performed.		
3.	Stop traffic and check that there were no loss of messages, no duplication and no missequencing. Check that the information field of these messages has not been corrupted.	

MTP LEVEL 3
TEST NUMBER:	3.1	PAGE:	1 of 1		
REFERENCE:	Q.704 § 5 Fig. 28, Fig. 29, Fig. 30			
TITLE:	Changeover			
SUBTITLE:	Changeover initiated at one side of a linkset (COO <-> COA)			
PURPOSE:	To check the normal changeover procedure			
PRE–TEST CONDITIONS:	Linkset with two available links			
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:			
		SP		A				SP		B	
	Link		Link	
:Start traffic			
	1 – 1			TRAFFIC	 ------------------>		
	<-----------------	1 – 1		TRAFFIC	
	1 – 2			TRAFFIC	 ------------------>		
	<-----------------	1 – 2		TRAFFIC	
	1 – 1				:Deactivate (MML command or failure)			
	1 – 2			COO, SLC 1 – 1	 ------------------>		
	<-----------------	1 – 2		COA, SLC 1 – 1	
	1 – 2			TRAFFIC
				(from 1 – 1)	 ------------------>		
	<-----------------	1 – 2		TRAFFIC
		(from 1 – 1)	
:Wait			
:Stop traffic			
			
TEST DESCRIPTION			
1.	Start traffic to B and C on all the links.	
2.	Deactivate link 1 – 1, check that a COO is sent (from A) for 1 – 1 on 1 – 2 and respond with a COA within T2.	
3.	Check that the time between the deactivation and the sending of the COO is inside the specified value (see Q.706).	
4.	Check that the traffic from link 1 – 1 is changed over to 1 – 2 and check that the traffic normally carried by 1 – 2 is passed over to 1 – 2.	
5.	Stop traffic and check it has been received correctly (no lost messages no duplication and no missequencing).	
6.	Repeat the test by sending the COO from B (instead of A). In addition, check that the time between the reception of the COO and the sending of the COA is inside the specified value (see Q.706).