MTP LEVEL 3
TEST NUMBER:	13.2	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid changeover messages	
PURPOSE:	To check the actions of the system on reception of changeover messages with an invalid SLC or OPC	
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 – 2	COO, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	COO, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	ECO, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	ECO, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	COA, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	COA, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	ECA, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	ECA, SLC 1 – 1
(nonexisting OPC)	
		 --------------->	1 – 1	TRAFFIC	
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
TEST DESCRIPTION	
1.	Start traffic to B and C on all links.	
2.	Send the invalid messages as described above and check that they are ignored.	
3.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	13.3	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid changeback messages	
PURPOSE:	To check the actions of the system on reception of changeback messages with an invalid SLC or OPC	
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 – 2	CBD, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	CBD, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	CBA, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	CBA, SLC 1 – 1
 (nonexisting OPC)	
1 – 1, 2	TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C on all links.	
2.	Send the invalid messages described above and check that they are ignored.	
3.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	13.4	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid changeback code	
PURPOSE:	To check the actions of the system on reception of an invalid changeback code in a changeback message	
PRE–TEST CONDITIONS:	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 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
1 – 1	:Activate (depending of the deactivation mean previously used)	
1 – 2	CBD, SLC 1 – 1	 --------------->			
		½ 				
		½				
		½  T4				
		½
	½	<---------------	1 – 2	CBA, SLC 1 – 1
(invalid changeback
Code # CBD)	
1 – 2	CBD, SLC 1 – 1	 --------------->			
		½				
		½				
		½  T5				
		½				
		½				
1 – 1	TRAFFIC
(from 1 – 2)	 --------------->			
		<---------------	1 – 1	TRAFFIC
(from 1 – 2 see note)	
1 – 2	TRAFFIC	 --------------->			
		<---------------	1 – 2	TRAFFIC	
:Wait	
:Stop traffic	
Note – B may perform a changeback or not.	
TEST DESCRIPTION	
1.	Start traffic to B and C on link 1 – 2.	
2.	Activate link 1 – 1, check that a CBD is received and acknowledged by a CBA with an invalid changeback code.	
3.	Check that a new CBD is received after T4 expires and acknowledged by a correct CBA. Check that changeback is performed.	
4.	Stop traffic and check that the invalid message has been discarded without impact on the traffic.	

MTP LEVEL 3
TEST NUMBER:	13.5	PAGE:	1 of 3	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid inhibition messages	
PURPOSE:	To check the actions of the system on reception of an invalid inhibition messages	
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 – 2	LIN, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LIN, SLC 1 – 2
(nonexisting OPC)	
		<---------------	1 – 2	LIA, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LIA, SLC 1 – 1
 (nonexisting OPC)	
		<---------------	1 – 2	LID, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LID, SLC 1 – 1
(nonexisting OPC)	
					
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send the invalid messages described above and check that these are ignored.	
3.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	13.5 Continued	PAGE:	2 of 3	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid inhibition messages	
PURPOSE:	As page 1	
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		
		<---------------	1 – 2	LUN, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LUN, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	LUA, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LUA, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	LFU, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LFU, SLC 1 – 1
(nonexisting OPC)	
					
TEST DESCRIPTION	
	See page 1.	

MTP LEVEL 3
TEST NUMBER:	13.5 Continued	PAGE:	3 of 3	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid inhibition messages	
PURPOSE:	As page 1	
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		
		<---------------	1 – 2	LLT, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LLT, SLC 1 – 1
(nonexisting OPC)	
		<---------------	1 – 2	LRT, SLC 1 – X
(nonexisting SLC)	
		<---------------	1 – 2	LRT, SLC 1 – 1
(non existing OPC)	
ALL	TRAFFIC	 --------------->			
		<---------------	ALL	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
	See page 1.	

MTP LEVEL 3
TEST NUMBER:	13.6	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid transfer control messages	
PURPOSE:	To check that there is no problem on reception of a TFC with spare field or SLC not coded 00	
PRE–TEST CONDITIONS:	Link 1 – 1 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	TFC, PC = C
(spare field  0)	
		<---------------	1 – 1	TFC, PC =C
(SLC  0000)	
		<---------------	1 – 1	TFC, PC = X
(nonexisting PC)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send a TFC with invalid spare field to A, then a TFC with an invalid SLC then a TFC with a nonexisting PC.	
3.	Check that these messages are correctly received without disturbances due to these incorrect values.	
4.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	13.7	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid signalling route management messages	
PURPOSE:	To check the actions of the system on reception of invalid TFA or TFP	
PRE–TEST CONDITIONS:	Link 1 – 1 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	ALL	
MESSAGES SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
		<---------------	1 – 1	TFP, PC = X
(nonexisting PC)	
		<---------------	1 – 1	TFA, PC = X
(nonexisting PC)	
		<---------------	1 – 1	TFP, PC = C
(nonexisting OPC)	
		<---------------	1 – 1	TFP, PC = C
(spare bits  00)	
		<---------------	1 – 1	TFP, PC = C
(SLC  0000)	
			2 – 1		:Deactivate	
		<---------------	1 – 1	TFP, PC = C	
		<---------------	1 – 1	TFA, PC = C
(nonexisting OPC)	
		<---------------	1 – 1	TFA, PC = C
(spare bits  00)	
		<---------------	1 – 1	TFA, PC = C
(SLC  0000)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send TFPs and TFAs with invalid values to A (as described above). Check that these messages are discarded without impact on the traffic.	
3.	Deactivate linkset 2 and check that B becomes inaccessible.	
4.	Send TFAs concerning C with invalid values to A (as described above) and check that these messages are discarded without impact on the traffic.	
5.	Check the indications are given by the system (except for SLC and spare bits  0).	
6.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	13.8	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid Signalling–Route–Set–Test messages	
PURPOSE:	To check the actions of the system on reception of invalid SRST messages	
PRE–TEST CONDITIONS:	Link 1 – 1 available	
CONFIGURATION:	A	TYPE OF TEST:	VAT	TYPE OF SP:	STP	
MESSAGES SEQUENCE:	
	SP	A			SP	B	
Link			Link		
:Start traffic	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
		<---------------	1 – 1	RST, PC = X
(nonexisting PC)	
		<---------------	1 – 1	RST, PC = C
(nonexisting OPC)	
		<---------------	1 – 1	RST, PC = C
(spare bits  00)	
		<---------------	1 – 1	RST, PC = C
(SLC  0000)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send to A the invalid messages described above and check that these messages are discarded without impact on the traffic.	
3.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	13.9	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid traffic restart allowed message	
PURPOSE:	To check the actions of the system on reception of an invalid traffic restart allowed message	
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, 2	TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
		<---------------	1 – 1	TRA (unknown OPC)	
1 – 1, 2	TRAFFIC	 --------------->			
		<---------------	1 – 1, 2	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send the invalid message described above and check that this message is ignored.	
3.	Stop traffic and check that it was not disturbed.	

MTP LEVEL 3
TEST NUMBER:	13.10	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Invalid messages	
SUB TITLE:	Invalid H0–H1 in a signalling network testing and maintenance message	
PURPOSE:	To check the actions of the system on reception of this invalid message	
PRE–TEST CONDITIONS:	Link 1 – 1 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	SIGNALLING NETWORK TESTING AND MAINTENANCE MESSAGE
(Invalid H0–H1)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send a signalling network testing and maintenance message with a nonexisting H0–H1.	
3.	Check that this message is discarded without impact on the traffic.	
4.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	13.11	PAGE:	1 of 1	
REFERENCE:	Q.707	
TITLE:	Invalid messages	
SUB TITLE:	Invalid signalling link test messages	
PURPOSE:	To check the actions of the system on reception of an invalid signalling link test message	
PRE–TEST CONDITIONS:	Link 1 – 1 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	SLTM (invalid SLC)	
		<---------------	1 – 1	SLTA (invalid SLC)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send the invalid SLTM and SLTA described above and check that they are discarded without impact on the traffic.	
3.	Stop traffic.	

MTP LEVEL 3
TEST NUMBER:	13.12	PAGE:	1 of 1	
REFERENCE:	Q.704 § 15	
TITLE:	Invalid messages	
SUB TITLE:	Invalid user part unavailable messages	
PURPOSE:	To check the actions of the system on reception of an invalid user part unavailable message	
PRE–TEST CONDITIONS:	Link 1 – 1 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	UPU (nonexisting OPC)	
		<---------------	1 – 1	UPU (nonexisting SI)	
1 – 1	TRAFFIC	 --------------->			
		<---------------	1 – 1	TRAFFIC	
:Wait	
:Stop traffic	
	
TEST DESCRIPTION	
1.	Start traffic to B and C.	
2.	Send the invalid UPUs described above and check that these messages are ignored.	
3.	Stop traffic and check that it was not disturbed.