MTP LEVEL 3
TEST NUMBER:	10.3	PAGE:	1 of 1	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	An adjacent SP becomes accessible via another SP (SP A has not STP function)	
PURPOSE:	To check the actions of the system when an adjacent SP becomes accessible via another SP	
PRE–TEST CONDITIONS:	Linksets 1, 3, 4, 5 and 6 are unavailable	
CONFIGURATION:	B	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
MESSAGE SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
			4 – 1  :Activate						
				½
TFPs 4 – 1	½
(D and E)		½T21
		½
		^
TRA 4 – 1		<--------
-------->

<--------
 -------->	4 – 1

4 – 1	½TFP (A)
½
½T21
½
½TRA
^			
		<--------	2 – X	TFAx	7 – 1	TFAs (A,B) ----->		SP	E	
2 – 1, 2 ½
		   ½
		   ½	T21	(for D and C)				(PCs = C, D and 		E) (Broadcasting
		mode)		8 – 1	TFAs (A,B) ----->
		T21 in D for A	½
					½		SP	D	
	   ½	TRAFFIC	 --------> <--------	4 – 1
2 – 1, 2	
<--------	7 – 1	 -------------->		   ½		
			 		4 – 1	<--------------	7 –1½	SP	E	
								  ½	SP	E	
									
2 – 1, 2	TRAFFIC	 -------->	4 – 1	 -------->	8 – 1	 -------------->		SP	D	
		<--------	2 – 1, 2	<--------	4 – 1	<--------------	8 – 1	SP	D	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Activate link 4 – 1.	
2.	Check that on the reception of TFAs the traffic is immediately restarted in A to E and that traffic to D is restarted after expiration of T21.	
3.	Stop traffic and check that there were no lost messages, no duplication and no missequencing.	

MTP LEVEL 3
TEST NUMBER:	10.4	PAGE:	1 of 1	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	An adjacent SP becomes accessible via another SP (SP A has STP function)	
PURPOSE:	To check the actions of the system when an adjacent SP becomes accessible via another SP on reception of a TFA	
PRE–TEST CONDITIONS:	Linksets 1, 3 and 4 are unavailable	
CONFIGURATION:	D	TYPE OF TEST:	VAT	TYPE OF SP:	STP	
MESSAGES SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
:Start traffic	
2 – 1	TRAFFIC	 ------------------------------->	7 – 1	 ------------>		SP	E	
	(from A)		8 – 1	 ------------>		SP	D	
		<-------------------------------	2 – 1	<------------	7 – 1	SP	E	
		4 – 1	:Activate			<------------	8 – 1	SP	D	
			½						½
	½	Point restart			½
	½ T21 procedure is			½ T21
	½ 	applied in B and C			½
	^ 		<-------	4 – 1	½ TRA
							^						
		4 – 1	TRA	   ------->					
									
		------------------------------->	2 – 1	TFA (PC = B)			
2 – 1	TFP (PC = F)	< -------------------------------	4 – 1				
	(sent to B via C)	<---------------------- ----------------					
2 – 1	TRAFFIC	 ------------------------------->	7 – 1	 ------------>		SP	E	
			8 – 1	<------------		SP	D	
		<-------------------------------	2 – 1	<------------	7 – 1	SP	E	
				<------------	8 – 1	SP	D	
:Wait	
:Stop traffic	
TEST DESCRIPTION	
1.	Start traffic.	
2.	Activate link 4 – 1.	
3.	Check that, when the TFA is received for B, SP A is aware of that B is an adjacent point which restarts, and consequently A sends a TFP concerning F on link 2 – 1 to B.	
4.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	10.5	PAGE:	1 of 2	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Restart of an SP having no STP function	
PURPOSE:	To check the restart procedure in an SP having no STP function	
PRE–TEST CONDITIONS:	SP A unavailable	
CONFIGURATION:	B	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	SP	
MESSAGE SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
	:Activate						
X – X	:Activation (first link activated)				
	½
½
 :  T21 
½
½
^  <------------	

TRA received from B or C			
		FINAL SITUATION (WHEN ALL LINKS ARE AVAILABLE)		
1 – 1, 2	TRAFFIC	 -------------------------------------------------------------------------->		SP	D	
		<--------------------------------------------------------------------------	1 – 1, 2	SP	D	
2 – 1, 2	TRAFFIC	------->	5 – 1	 ---------------------------------------------->		SP	D	
			6 – 1	 ---------------------------------------------->		SP	E	
3 – 1, 2	TRAFFIC	 -------------------------------------->	8 – 1	 ------------>		SP	D	
			7 – 1	 ------------>		SP	E	
		<--------------------------------------	3 – 1, 2	<------------	7 – 1	SP	E	
:Wait	
:Stop traffic	
TEST DESCRIPTION	
1.	Activate SP A.	
2.	Check that when the first link is activated, the timer T21 is started.	
3.	Check that, on reception of a TRA received from B or C, T21 is stopped.	
4.	Check that, when all links are activated, the traffic is carried as described above.	
5.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	10.5 Continued	PAGE:	2 of 2	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Restart of an SP having no STP function	
PURPOSE:	To check the restart procedure in an SP having no STP function	
PRE–TEST CONDITIONS:	SP A, linksets 6 and 7 unavailable	
CONFIGURATION:	B	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
MESSAGE SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
1 – 1		:Activate				
1 – 1	½	TRAFFIC	 ---------------------------------------------------------->		SP	D	
	½	< ----------------------------------------------------------	1 – 1	SP	D	
1 – 2	½	Activate	(changeback is performed)			
	½	TRAFFIC	---------------------------------------------------------- >		SP	D	
	½	< ----------------------------------------------------------	1 – 2	SP	D	
	½ T21				
2 – 1	½	Activate	(traffic from/to B is immediately restarted)			
	^	<--------  	2 – 1 TFP (PC = E)
<--------	2 – 1 TRA
			5 – 1 TFA (PC = A)
		|-------------------------------------------->
			4 – 1 TFA (PC = A)
		|----------------------------->

SP	D	
		<------	2 – 1	<--------	4 – 1 TFP (PC = E)			
2 – 2	:Activate	(changeback is performed)			
3 – 1, 2	:Activate	(changebacks are performed)			
1 – 1, 2	TRAFFIC	 -------------------------------------------------------------------------->		SP	D	
		<---------------------------------------------------------------------------	1 – 1, 2	SP	D	
2 – 1, 2	TRAFFIC	 ------>	5 – 1	 ---------------------------------------------->		SP	D	
3 – 1, 2	TRAFFIC	 -------------------------------------->	8 – 1	 ------------>		SP	D	
:Wait	
:Stop traffic	
Note – Changebacks are performed, but they are not described in this point restart test.	
TEST DESCRIPTION	
1.	Activate the link 1 – 1.	
2.	Check that after activation on link 1 – 1, the traffic between A and D is immediately restarted and check that T21 is started in A. Activate 1 – 2.	
3.	Activate link 2 – 1 and send a TFP for E from B to A. Check that T21 is stopped on reception of the TRA message.	
4.	Check that the traffic is carried as described above, after the restart.	
5.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	10.6	PAGE:	1 of 2	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Restart of an SP having the STP function	
PURPOSE:	To check the restart procedure in an SP having STP function	
PRE–TEST CONDITIONS:	SP A unavailable	
CONFIGURATION:	D	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	STP	
MESSAGES SEQUENCE:	
SP	A	SP	B	SP	C	SP		
Link			Link		Link		Link		
	:Activate				
X – X	:Activation	
		<-------- TRA may be received from B or C	
	½ T18			½ T21			½ T21
½				½			½					½ T21
			½		
	^ all links are aligned	½	½					½		
	½				½	½		 ½			
		<-------- TRA may be received from B or C					½		
	½ T19 (see note)		½	½		 ½				
1 – 1	½ TFPs (for D and E) -->	½	½				 ½				
2 – 1	½ TFPs (for D and E)  ----------->  ½ -------->	½			 ½				
	^ T20				½	½			 ½				
1 – 1		TRA	 -------->	 ^TFAs (A) are sent	  ^TFAs (A) are sent			  ½				
2 – 1		TRA	 ----------------------------------->				^		
3 – 1		TRA	 ---------------------------------------------------------->		SP	F	
1 – 1		TRAFFIC	 ------>	5 – 1	 ----------------------------------->		SP	D	
	(from A and F) 	<-------	Via B or C to A and F	 ------------> 5 – 1 or 8 – 1	SP	D	
			6 – 1	 ----------------------------------->		SP	E	
2 – 1	TRAFFIC	 -------------------------------------->	7 – 1	 ------------>		SP	E	
	(from A and F) <-------	Via B or C to A and F	 ------------> 6 – 1 or 7 – 1	SP	E	
:Wait	
:Stop traffic	
Note – If all TRAs are received during T18, T19 is not started.	
TEST DESCRIPTION	
1.	Activate signalling point A.	
2.	Check that the signalling links become available and check that the received TRAs are correctly handled.	
3.	Check that when all TRAs are received in A, TRAs are broadcasted from A.	
4.	Check that the traffic is restarted correctly, wait and stop traffic.	
5.	Repeat the test (in VAT) but send the traffic from F to D and E via A immediately after alignment of link 3 – 1 and check that this traffic is treated normally in A.	

MTP LEVEL 3
TEST NUMBER:	10.6 Continued	PAGE:	2 of 2	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Restart of an SP having the STP function	
PURPOSE:	To check the restart procedure in an SP having STP function	
PRE–TEST CONDITIONS:	SP A, linksets 2 and 4 unavailable	
CONFIGURATION:	D	TYPE OF TEST:	VAT	TYPE OF SP:	STP	
MESSAGE SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
	:Activate				
3 – 1	:Activation (traffic from/to F is immediately restarted)		
	½ T18	½	
1 – 1	½ Activation (traffic from/to B is immediately restarted)	½	
	½ 	<------	1 – 1	½ TFP (PC = C)		½	
	½	<------	1 – 1	½TRA		½	
	^				 ½		½	
	^ T19				 ½T21		½ T21	
3 – 1	½ TFP (PC = C)	 ----------------------------------------------------------------------->		½SP	F	
1 – 1	½ TFPs	 -------->	 ½			½	
	½ (PC = C, D and E)		½		½	
	^ T20				½		½	
1 – 1		TRA	 -------->	 ^			½	
3 – 1		TRA	 -------------------------------------------------------------------------->		^	
1 – 1		TRAFFIC	 ------>	5 – 1	 ----------------------------------->		SP	D	
	(from A and F)		6 – 1	 ----------------------------------->		SP	E	
		to A and F		<-----------------------------------	5 – 1	SP	D	
		to A and F		<-----------------------------------	6 – 1	SP	E	
:Wait	
:Stop traffic	
TEST DESCRIPTION	
1.	Activate signalling point A beginning by the activation of 3 – 1. After activation of 3 – 1, activate link 1 – 1.	
2.	Check that T19 is started after expiration of T18. Check that the duration of T18 is inside the specified range.	
3.	Check that T20 is started after expiration of T19. Check that the duration of T19 is inside the specified range.	
4.	Check that TFPs are sent during T20.	
5.	Check that when T20 expires TRAs are broadcasted and that the traffic is correctly restarted, wait and stop traffic.	
6.	Repeat the test with activation of 2 – 1 during T19 and check that this event is treated outside the procedure.	

MTP LEVEL 3
TEST NUMBER:	10.7.1	PAGE:	1 of 1	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Reception of an unexpected TRA – In an SP having no STP function	
PURPOSE:	To check the actions of the system in case of reception of an unexpected TRA	
PRE–TEST CONDITIONS:	Linkset with one available link	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	SP	
MESSAGES SEQUENCE:	
SP	A				SP	B	
Link			Link		
:Start traffic	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
		<---------------	1 – 1	TRA	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C on link 1 – 1.	
2.	Send a TRA from B to A and check that this message is ignored.	
3.	Stop traffic and check that it has not been disturbed.	

MTP LEVEL 3
TEST NUMBER:	10.7.2	PAGE:	1 of 1	
REFERENCE:	Q.704 § 9	
TITLE:	Signalling point restart	
SUB TITLE:	Reception of an unexpected TRA – In an SP having STP function	
PURPOSE:	See test 10.7.1	
PRE–TEST CONDITIONS:	Linksets 1, 4 and 8 unavailable	
CONFIGURATION:	D	TYPE OF TEST:	VAT	TYPE OF SP:	STP	
MESSAGE SEQUENCE:	
SP	A	SP	B	SP	C	SP	·	
Link			Link		Link		Link		
:Start traffic	
2 – 1	TRAFFIC	 ------------------------------->	7 – 1	 ------------>		SP	E	
	(from A and F)						
		<-------------------------------	2 – 1	<-----------	7 – 1	SP	E	
		<-------------------------------	2 – 1	TRA			
2 – 1	TFP (PC = B)	 ------------------------------->					
2 – 1	TFP (PC = D)	 ------------------------------->					
2 – 1	TRAFFIC	 ------------------------------->	7 – 1	 ------------>		SP	E	
	(from A and F)						
		<-------------------------------	2 – 1	<-----------	7 – 1	SP	E	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to E.	
2.	Send a TRA from C to A and check that TFPs concerning B and D are received, then, check that a TRAs received from A.	
3.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	11	PAGE:	1 of 1	
REFERENCE:	Q.706	
TITLE:	Traffic test	
SUB TITLE:	
PURPOSE:	To check the behaviour of an STP in various traffic situations	
PRE–TEST CONDITIONS:	All links available	
CONFIGURATION:	C	TYPE OF TEST:	VAT	TYPE OF SP:	STP	
MESSAGE SEQUENCE:	
SP	B			SP	A	SP	C	
Link			Link		Link		
:Start traffic	
1 – 1	TRAFFIC	 ----------->	2 – 1	 ----------->			
1 – 2	TRAFFIC	 ----------->	2 – 1	 ----------->			
		<-----------	1 – 1 	<-----------	2 – 1	TRAFFIC	
		<-----------	1 – 2				
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic between B and C in both directions via A using the traffic models presented in Recommendation Q.706.	
2.	Check that the time to cross the STP is better than 20 milliseconds.	
3.	Stop traffic and check that it was not disturbed.	
4.	Repeat test but with a traffic model including 5% of messages with an SIF = 272 octets.	

MTP LEVEL 3
TEST NUMBER:	12.1	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	After activation of a link	
PURPOSE:	To check the signalling link test procedure after activation of a signalling link	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
SP	A				SP	B	
Link			Link		
:Start traffic	
1 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
1 – 1	:Activate				
1 – 1	SLTM	 --------------->			
		<---------------	1 – 1	SLTA	
		<---------------	1 – 1	SLTM	
1 – 1	SLTA	 --------------->			
CHANGEBACK	
1 – 1, 2	TRAFFIC	 --------------->			
	TRAFFIC	<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B (and C in VAT).	
2.	Activate link 1 – 1 and check that an SLTM is received from A.	
3.	Send an SLTM to A and check that an SLTA is received.	
4.	Check that the link 1 – 1 becomes available and that changeback is performed correctly.	
5.	Stop traffic.	
6.	In VAT, repeat the test with link 1 – 1 unavailable and inhibited (in this case changeback is not performed). Check that the link 1 – 1 becomes available and stays inhibited.	

MTP LEVEL 3
TEST NUMBER:	12.2	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	No acknowledgement to first SLTM	
PURPOSE:	To check that a second SLTM is sent if the first is not acknowledged	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 2		TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
1 – 1		:Activate				
1 – 1		SLTM	 --------------->			
	½
½ T1				
	½
^				
1 – 1		SLTM	 --------------->			
		<---------------	1 – 1	SLTA	
		<---------------	1 – 1	SLTM	
1 – 1		SLTA	 --------------->			
CHANGEBACK	
1 – 1, 2		TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Activate link 1 – 1 and check that an SLTM is received and not acknowledged.	
3.	Check that when the time T1 expires a new SLTM is sent. Check that the duration of this time is inside of the specified range.	
4.	Check that the link 1 – 1 becomes available and that the changeback is performed correctly.	
5.	Stop traffic.	
6.	Repeat the test with link 1 – 1 unavailable and inhibited (in this case changeback is not performed). Check that the link becomes available and stays inhibited.	

MTP LEVEL 3
TEST NUMBER:	12.3	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	No acknowledgement to second SLTM	
PURPOSE:	To check that the link stays unavailable when the second SLTM is not acknowledged	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 2		TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
1 – 1		:Activate				
1 – 1		SLTM	 --------------->			
	½
½ T1				
	½
½
^				
1 – 1		SLTM	 --------------->			
	½
½ T1				
	½
½
^				
1 – 2		TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Activate link 1 – 1 and check that two SLTMs are received from A.	
3.	Check that after the second expiration of T1, link 1 – 1 stays unavailable and that the management system is informed.	
4.	Repeat the test with link 1 – 1 unavailable and inhibited.	

MTP LEVEL 3
TEST NUMBER:	12.4	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	Unreasonable field in an SLTA	
PURPOSE:	To check the actions of the system on reception of an SLTA with an unreasonable field	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
	1 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
	1 – 1	:Activate				
	1 – 1	½ 	SLTM	 --------------->	1 – 1	SLTA (erroneous test	
			½		<---------------			pattern)	
		^					
	1 – 1	SLTM	 --------------->			
		<---------------	1 – 1	SLTA	
CHANGEBACK	
	1 – 1, 2	TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Activate link 1 – 1 and check that an SLTM is received and acknowledged with an SLTA containing an erroneous test pattern.	
3.	Check that a second SLTM is sent from A and correctly acknowledged.	
4.	Check that link 1 – 1 becomes available and that changeback is performed correctly.	
5.	Wait and stop traffic.	
6.	Repeat the test with a first SLTA containing an erroneous SLC then OPC.	
7.	Repeat the test with the first and second erroneous SLTA and check that link 1 – 1 stays unavailable and that management system is informed.	

MTP LEVEL 3
TEST NUMBER:	12.5	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	Reception of an SLTM in an attempt state	
PURPOSE:	To check the actions of the system when an SLTM is received in an attempt state	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
1 – 1		:Activate				
1 – 1		SLTM	 --------------->			
	½  T1	<--------------- 	1 –1	SLTM	
1 – 1	½	SLTA	 --------------->			
	½				
1 – 1		SLTM	--------------->	1 – 1	SLTM	
	½				
	½  T1	<--------------- 			
1 – 1	½	SLTA	--------------->			
		<---------------	1 – 1	STLA	
CHANGEBACK	
1 – 1, 2	TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Activate link 1 – 1 and check that SLTM is received. Send an SLTM and check that an SLTA is received.	
3.	On reception of the second SLTM, send an SLTM and check that an SLTA is received. Send an SLTA to A.	
4.	Check that changeback is performed correctly, and stop traffic.	

MTP LEVEL 3
TEST NUMBER:	12.6	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Signalling link test	
SUB TITLE:	Additional SLTA and SLTM	
PURPOSE:	To check the actions of the system on reception of additional SLTA and SLTM	
PRE–TEST CONDITIONS:	Signalling link 1 – 2 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT, CPT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
		<---------------	1 – 2	SLTA	
		<---------------	1 – 2	SLTM	
1 – 2	SLTA	 --------------->			
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B (and C in VAT).	
2.	Check that the reception of an SLTA is ignored.	
3.	Send an SLTM to A and check that an SLTA is received.	
4.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	13.1	PAGE:	1 of 1	
REFERENCE:	Q.704 Tab. 1	
TITLE: Invalid messages	
SUB TITLE:	Invalid H0.H1 in a signalling network management message	
PURPOSE:	To check the actions of the system when a signalling network management message is received with a nonexisting H0.H1	
PRE–TEST CONDITIONS:	All links available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGE SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
ALL	TRAFFIC	 --------------->			
		<---------------	ALL	TRAFFIC	
		<---------------	1 – X	SIGNALLING NETWORK MANAGEMENT MESSAGE  (Invalid H0.H1)	
ALL	TRAFFIC	 --------------->			
		<---------------	ALL	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C on all links.	
2.	Send a signalling network management message with a nonexisting H0.H1.	
3.	Check that this message is discarded without impact on the traffic.	
4.	Stop traffic.