SCTP_TS: Valid8.com/ACATS SCTP Conformance Test Suite V.2.0, for use with SCTP Signaling Tester
TEST SUITE OVERVIEW

References	ETSI TS 102 369 V1.1.1 (2004-11) / ETSI TS 102 144 V1.1.1) / IETF RFC4960, 2960, 3309
Archive/Project	voip/sctp_ts
Version	19171599
Date	02 Dec 2008
Number of Scenarios	372
Number of Groups	79
Average per Group	4

GROUP/SCENARIO	TEST PURPOSE

Initialize_SCTP_IUT_Server	Initialize SCTP towards IUT and verify an association can be made
	Reference: DTS/MTS-00086 v0.0.4 (2004-07)
Initialize_SCTP_IUT_Client	Receive incoming SCTP connection from IUT and verify an association can be made
	Reference: DTS/MTS-00086 v0.0.4 (2004-07)
SCTP_Client_Tests
SCTP_Client_Tests/ SCTP_AS
SCTP_Client_Tests/ SCTP_AS/ SCTP_AS_V
SCTP_AS_V_1_1_1	Ensure the IUT makes a complete association procedure
	Configure the IUT to send an INIT to the tester. SUT: Client Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_AS_V_1_5_1	Ensure that the IUT on re-establishing an association to a peer, uses a random Initiate-Tag value in the INIT message
	association can be established and terminated between tester and SUT. Status: Mandatory
SCTP_AS_V_1_6_2	Ensure that the IUT on receipt of an INIT-ACK message with the listed parameters accepts this message
	and responds to it. tester such that the listed parameters (IPv4 Address Parameter, IPv6 Address Parameter, CookiePreservative are sent in INIT-ACK message. SUT: Client
SCTP_AS_V_1_7_3	Ensure that the IUT, if there is a mismatch in the Outbound Stream and Inbound Stream parameters in INIT and INIT-ACK message,
	either aborts the association or settles with minimum of the two parameters. at the tester such that INIT-ACK message is sent from tester with MaximumInboundStreams XSUT: Client
SCTP_AS_V_1_10_2	Ensure that the IUT on receipt of an INIT-ACK message with no optional IP
	addresses sends an COOKIE_ECHO message to the source IP address from which INIT-ACK was received. the data at the tester such that no IP addresses are sent in INIT-ACK optional IP address field. SUT: Client
SCTP_AS_V_1_11_2	Ensure that the IUT on receipt of an INIT-ACK message with one or more
	IP addresses uses all of these IP addresses plus the IP address from where INIT-ACK comes combined with the SCTP source port number as the destination transport address and sends an COOKIE-ECHO message to one of the transport addresses. Arrange the data at the tester such that one or more IP addresses are sent in INIT-ACK message. SUT: Client
SCTP_Client_Tests/ SCTP_AS/ SCTP_AS_I
SCTP_AS_I_1_2_1	Ensure that the IUT, if T1-Init timer expires, transmits the INIT message again
	Arrange the data at the tester such that INIT-ACK is never sent in response to INIT message. SUT: Client
SCTP_AS_I_1_2_2	Ensure that the IUT, if T1-Cookie timer expires, transmits the COOKIE-ECHO message again
	to send an INIT to the tester. Arrange the data at the tester such that COOKIE-ACK is not sent in response to COOKIE-ECHO message Status: Mandatory SUT: Client Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_AS_I_1_3_1	Ensure that the IUT, if INIT is retransmitted for MAX_INIT_RETRANS times, stops the initialisation
	process. to the tester. Arrange the data at the tester such that INIT-ACK is never sent in response to INIT message SUT: Client Reference: RFC 4960/2960 [1], section 4 (Note 2) [1]
SCTP_AS_I_1_3_2	Ensure that the IUT, if COOKIE-ECHO message is retransmitted for MAX_INIT_RETRANS times, stops the initialisation process
	Arrange the data at the tester such that COOKIE-ACK is never sent in response to COOKIE-ECHO message. SUT: Client Status: Mandatory
SCTP_AS_I_1_7_4	Ensure that the IUT, if OutboundStreams is found zero in the received INIT-ACK message, destroys its TCB and may send an ABORT message
	for that INIT-ACK. Further message exchanges between tester and IUT need to take place to verify the TCB removal from outside the SUT. the tester such that INIT-ACK message with OutboundStreams equal to 0 is sent from tester. SUT: Client
SCTP_AS_I_1_12_2	Ensure that the IUT on receipt of an INIT-ACK message with Host Name address
	and no other IP address sends an ABORT message with error Unresolvable Address. the data at the tester such that Host Name address is sent to SUT with no other IP address in INIT-ACK message SUT: Client
SCTP_AS_I_1_14_2	Ensure that the IUT on receipt of an INIT-ACK message with Init-Tag equal to
	zero destroys the TCB and may send an ABORT. Arrange the data at the tester such that Initiate-tag field equal to zero is sent to SUT in INIT-ACK message. SUT: Client
SCTP_AS_I_1_15	Ensure that the IUT uses all configured addresses for association
	establishment. addresses X and Y. Association is not established between tester and SUT. Arrange the data at the tester such that no INIT-ACK message is sent to SUT in Response to an INIT. SUT: Client
SCTP_Client_Tests/ SCTP_AS/ SCTP_AS_O
SCTP_AS_O_1_9_1	Ensure the IUT on receipt of an INIT message for starting an association with
	transport addresses which are already in assocation, responds with an INIT-ACK message. data at the tester such that INIT message is sent for making an association with SUT using the same IP addresses. SUT: MGC Reference: RFC 4960/2960 [1], sections 5.2.2 and darft ietf[6], section 2.6
SCTP_AS_O_1_9_2	Ensure the IUT on receipt of an INIT message for starting association with
	transport addresses which are not the same as the already established, responds with an ABORT message with error "restart of an association with new addresses. data at the tester such that INIT message is sent for establishing an association with SUT. The additional transport addresses should contain a new, not yet used, IP address. SUT: MGC Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_Client_Tests/ SCTP_AT
SCTP_Client_Tests/ SCTP_AT/ SCTP_AT_V
SCTP_Client_Tests/ SCTP_IMH
SCTP_Client_Tests/ SCTP_IMH/ SCTP_IMH_I
SCTP_IMH_I_3_2	Ensure that the IUT on receipt of an invalid INIT-ACK message with message
	length < length of all mandatory parameters, discards the message or may send an ABORT message. Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that INIT-ACK message is sent to SUT with message length less than the length of all mandatory parameters. Reference:RFC 4960/2960[1], section 5.1 SUT: Client
SCTP_Client_Tests/ SCTP_DM
SCTP_Client_Tests/ SCTP_DM/ SCTP_DM_O
SCTP_DM_O_4_1	Ensure that the IUT on receipt of an INIT message after sending
	an INIT message on its own, sends an INIT-ACK message. Arrange the data at the tester such that INIT message is sent to SUT upon reception of an INIT from the SUT. SUT: Client
SCTP_DM_O_4_3	Ensure that the IUT on receipt of a duplicate INIT-ACK message, after sending
	a COOKIE-ECHO message, discards the INIT-ACK message. Arrange the data at the tester such that the same INIT-ACK message is sent to SUT after receiving COOKIE-ECHO message. SUT: Client
SCTP_DM_O_4_6_1	Ensure that the IUT on receipt of a SHUTDOWN message, after sending an
	INIT message on its own, discards the SHUTDOWN message. Arrange the data at the tester such that SHUTDOWN message is sent to SUT after receiving INIT message from it. SUT: Client
SCTP_DM_O_4_7_1	Ensure that the IUT on receipt of a SHUTDOWN-ACK message, in Cookie Wait
	state, sends a SHUTDOWN-COMPLETE message and current state is not disturbed. Arrange the data at the tester such that SHUTDOWN-ack message is sent to SUT after receiving INIT message from it. SUT: Client
SCTP_DM_O_4_9	Ensure the IUT on receipt of a SHUTDOWN COMPLETE message in Cookie wait
	state, discards the message. Arrange the data at the tester such that SHUTDOWN COMPLETE message is sent to SUT after receiving INIT message from it. Status: Mandatory Reference: RFC 4960/2960 [1], sections 9.2
SCTP_Client_Tests/ SCTP_FH
SCTP_Client_Tests/ SCTP_FH/ SCTP_FH_V
SCTP_Client_Tests/ SCTP_FH/ SCTP_FH_O
SCTP_Client_Tests/ SCTP_E
SCTP_Client_Tests/ SCTP_E/ SCTP_E_O
SCTP_E_O_6_1	Ensure that the IUT on receipt of ERROR message with cause Stale
	Cookie Error in Cookie Echoed state, takes one of the following actions depending on the implementation: 1) Sends a new INIT message to the tester to generate a new cookie and reattempt the setup procedure. 2) Discards the TCB and changes the state to closed. 3) Sends a new INIT message to the tester adding a cookie preservative parameter requesting the extension on lifetime of cookie. Arrange the data at the tester such that ERROR message with cause stale cookie error is sent in response to COOKIE-ECHO message. SUT: Client
SCTP_Client_Tests/ SCTP_E/ SCTP_E_I
SCTP_E_I_6_4	Ensure that the IUT on receipt of INIT-ACK message without a Cookie
	parameter, sends an ERROR message with cause Missing Mandatory Parameter or may send an ABORT or no message at all. Arrange the data at the tester such that a INIT-ACK is sent to SUT without Cookie parameter. SUT: Client
SCTP_E_I_6_5	Ensure that the IUT on receipt of INIT-ACK message with an
	unknown TLV parameter, sends an ERROR message with cause Unrecognized Parameters. Arrange the data at the tester such that a INIT-ACK is sent to SUT with an unknown TLV parameter. SUT: Client
SCTP_Client_Tests/ SCTP_BDC
SCTP_Client_Tests/ SCTP_BDC/ SCTP_BDC_V
SCTP_BDC_V_7_5	Ensure that the IUT on receipt of COOKIE-ACK chunk
	bundled with DATA chunks, accepts the COOKIE-ACK and responds with a SACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ACK with COOKIE-ACK as the first chunk. SUT: Client
SCTP_Client_Tests/ SCTP_BDC/ SCTP_BDC_I
SCTP_BDC_I_7_2	Ensure that the IUT on receipt of DATA chunks bundled with
	INIT-ACK chunk discards this packet or sends an ABORT or accepts the INIT-ACK but ignores the DATA chunks. Arrange the data at the tester such that a data chunks are bundled with INIT-ACK message. SUT: Client
SCTP_Client_Tests/ SCTP_D
SCTP_Client_Tests/ SCTP_D/ SCTP_D_V
SCTP_Client_Tests/ SCTP_D/ SCTP_D_I
SCTP_Client_Tests/ SCTP_A
SCTP_Client_Tests/ SCTP_A/ SCTP_A_V
SCTP_Client_Tests/ SCTP_A/ SCTP_A_O
SCTP_Client_Tests/ SCTP_M
SCTP_Client_Tests/ SCTP_M/ SCTP_M_I
SCTP_Client_Tests/ SCTP_RT
SCTP_Client_Tests/ SCTP_RT/ SCTP_RT_I
SCTP_Server_Tests
SCTP_Server_Tests/ SCTP_AS
SCTP_Server_Tests/ SCTP_AS/ SCTP_AS_V
SCTP_AS_V_1_1_2	Ensure the IUT can establish a complete association after receiving an INIT from the tester
	Arrange the data at the tester such that an INIT is sent to IUT. SUT: Server Status: Mandatory Reference: RFC 4960/2960 [1], sections 5.1 [1] and 5.1.6[1]
SCTP_AS_V_1_5_2	Ensure that the IUT on re-establishing an association to a peer, uses a random Initiate-Tag value in the INIT-ACK message
	Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that normal association can be established and terminated between tester and SUT. SUT: Server
SCTP_AS_V_1_6_1	Ensure that the IUT on receipt of an INIT message with the listed parameters accepts this message
	and responds to it. tester such that the listed parameters (IPv4 Address Parameter, IPv6 Address Parameter, CookiePreservative, Supported Address Type Parameter) are sent in INIT message. SUT: Server
SCTP_AS_V_1_7_1	Ensure that the IUT, if there is a mismatch in the Outbound Stream and Inbound Stream parameters
	in INIT and INIT-ACK message, either aborts the association or settles with minimum of the two parameters. of the SUT is Z. Arrange data at the tester such that INIT message is sent from tester with MaximumInboundStreams YSUT: Server
SCTP_AS_V_1_7_5	Ensure that the IUT supports at least 2 incoming streams and 2 outgoing streams
	at the tester such that INIT message is sent from tester with OutboundStreams and MaximumInboundStreams set to 2. SUT: Server
SCTP_AS_V_1_10_1	Ensure that the IUT on receipt of an INIT message with no IP addresses
	sends an INIT-ACK message to the source IP address from where INIT was received. Arrange the data at the tester such that no IP addresses are sent in INIT. SUT: Server
SCTP_AS_V_1_11_1	Ensure that the IUT on receipt of an INIT message with one or more IP
	addresses sends an INIT-ACK message to the source IP addresses from where INIT was received and uses all of these IP address plus the IP address from where INIT comes combined with the SCTP source port number as the destination transport address. Arrange the data at the tester such that one or more IP addresses are sent in INIT message. SUT: Server
SCTP_AS_V_1_12_1	Ensure that the IUT on receipt of an INIT message with Host Name address and
	no other IP address sends an ABORT message with error Unresolvable Address. the data at the tester such that Host Name address is sent to SUT with no other IP address in INIT message SUT: Server
SCTP_AS_V_1_13_1	Ensure that the IUT on receipt of an INIT message with Supported address field
	sends an INIT-ACK message with the address of the type contained in the Supported address field in the received INIT. the data at the tester such that Supported Address field is sent in INIT. Also the SUT is capable of using the address type mentioned in Supported Address field. SUT: Server
SCTP_Server_Tests/ SCTP_AS/ SCTP_AS_I
SCTP_AS_I_1_4	Ensure that the IUT remains in closed state if COOKIE-ECHO message is not received
	INIT-ACK message. Also let maximum no of association which SUT can establish is n and n-1 of them are already established. Try to make the nth association. SUT: Server
SCTP_AS_I_1_7_2	Ensure that the IUT, if OutboundStreams are found zero in the received INIT message,
	sends an ABORT message for that INIT. or silently discards the received message. the tester such that INIT message with OutboundStreams equal to 0 is sent from tester. SUT: Server
SCTP_AS_I_1_8_1	Ensure that the IUT on receipt of unrecognised TLV parameters in received INIT message fills them
	in the Unrecognised Parameters of the INIT-ACK and continues on processing of further parameters. such that a datagram with undefined parameter type and MSB two bits in the parameter type equal to 11 is sent to tester. SUT: Server Status: Mandatory Reference: RFC4960/2960, section 3.3.3.1 / DTS/MTS-00086 v0.0.4 (2004-07)
SCTP_AS_I_1_8_2	Ensure that the IUT on receipt of an unrecognized parameter in the INIT-chunk does not process any further parameters and does not report it
	a datagram with undefined parameter type and MSB two bits in the parameter type equal to 00 is sent to the IUT Status: Mandatory SUT: Server
SCTP_AS_I_1_8_3	Ensure that the IUT on receipt of an unrecognized parameter in the INIT-chunk does not process any further
	parameters and report it using an Unrecognized Parameters parameter field." datagram with undefined parameter type and MSB two bits in the parameter type equal to 01 is sent to the IUT. SUT: Server
SCTP_AS_I_1_8_4	Ensure that the IUT on receipt of an unrecognized
	parameter in the INIT-chunk skips this parameter and does process any further parameters. tester such that a datagram with undefined parameter type and MSB two bits in the parameter type equal to 10 is sent to the IUT. Status: Mandatory SUT: Server
SCTP_AS_I_1_13_2	Ensure that the IUT on receipt of an INIT message with Supported address type
	which the receiver is incapable of using sends an ABORT message with cause Unresolvable Address. the data at the tester such that Supported address type field IPv6 is sent to SUT in INIT message (END USER PLEASE NOTE: Supported Address Type IPv4 will not be sent. Your SUT should not support IPv6.). Also receiver (i.e. SUT) is not capable of using supported address type, i.e ONLY IPv4. SUT: Server
SCTP_AS_I_1_14_1	Ensure that the IUT on receipt of an INIT message with Init-Tag equal to zero
	destroys the TCB and may send an ABORT. Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that Initiate-tag field equal to zero is sent to SUT in INIT message. SUT: Server
SCTP_Server_Tests/ SCTP_IMH
SCTP_Server_Tests/ SCTP_IMH/ SCTP_IMH_I
SCTP_IMH_I_3_1	Ensure that the IUT on receipt of an invalid INIT message with message
	length < length of all mandatory parameters, discards the message or may send an ABORT message. the data at the tester such that INIT message is sent to SUT with message length less than the length of all mandatory parameters. SUT: Server
SCTP_IMH_I_3_3	Ensure that the IUT on receipt of a COOKIE-ECHO message with invalid
	verification tag, discards the COOKIE-ECHO message. Arrange the data at the tester such that COOKIE-ECHO message with a different verification tag (Different from what received in INIT-ACK) is sent in response to INIT-ACK. SUT: Server
SCTP_IMH_I_3_4	Ensure that the IUT on receipt of an INIT message with wrong CRC-32c
	checksum, discards the INIT message. Tester_IP_CDC --> RFC3309_CRC32_Checksum in the System Configuration to FALSE and restart the test environment. Arrange data at the tester such that it sends INIT message to SUT with wrong CRC-32c checksum. SUT: Server
SCTP_IMH_I_3_5	Ensure that the IUT on receipt of a COOKIE-ECHO message with other cookie
	than sent in INIT_ACK, discards the message. the data at the tester such that COOKIE-ECHO message is sent with cookie different from received cookie in INIT-ACK. SUT: Server
SCTP_IMH_I_3_6	Ensure that the IUT on receipt of a COOKIE-ECHO message after lifetime
	received in INIT-ACK message has expired, should send an ERROR with cause “"Stale Cookie Error”". the data at the tester such that COOKIE-ECHO message is sent after life time of the received cookie in INIT-ACK message has expired. SUT: Server
SCTP_IMH_I_3_8	Ensure that the IUT on receipt of an INIT message with a packet length
	smaller than the Chunk length defined, sends an ABORT message or discards the message. the data at the tester such that chunk length is greater than the length of the message being sent to other SUT. SUT: Server
SCTP_IMH_I_3_9	Ensure that the IUT on receipt of a SHUTDOWN-ACK message with invalid
	verification tag, discards the message. tester such that SHUTDOWN-ACK message with invalid verification tag is sent to SUT in Shutdown Sent state. SUT: Server
SCTP_Server_Tests/ SCTP_DM
SCTP_Server_Tests/ SCTP_DM/ SCTP_DM_O
SCTP_DM_O_4_2_1	Ensure that the IUT on receipt of an INIT message when association
	is already established, sends an INIT-Ack message and existing association is not disturbed. to SUT when association is established between tester and SUT. Also, source IP address, destination IP address and port numbers are the same as in the established association. SUT: Server
SCTP_Server_Tests/ SCTP_E
SCTP_Server_Tests/ SCTP_E/ SCTP_E_I
SCTP_E_I_6_6	Ensure that the IUT on receipt of COOKIE-ECHO message
	bundled with error (cause = Unrecognized Parameter), continues to establish the association. Arrange the data at the tester such that COOKIE-ECHO bundled with ERROR (cause = Unrecognized Parameters) is sent to SUT. SUT: Server
SCTP_Server_Tests/ SCTP_BDC
SCTP_Server_Tests/ SCTP_BDC/ SCTP_BDC_V
SCTP_BDC_V_7_4	Ensure that the IUT on receipt of COOKIE-ECHO chunk
	bundled with DATA chunks, accepts the packet and responds with a COOKIE-ACK bundled with a SACK or a single COOKIE-ACK and then a SACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ECHO as the first chunk. SUT: Server
SCTP_Server_Tests/ SCTP_BDC/ SCTP_BDC_I
SCTP_BDC_I_7_1	Ensure that the IUT on receipt of any DATA chunks
	bundled with INIT chunk discard this packet. Arrange the data at the tester such that data chunks are bundled with INIT message. section 2.11 SUT: Server
SCTP_Generic_Tests
SCTP_Generic_Tests/ SCTP_AT
SCTP_Generic_Tests/ SCTP_AT/ SCTP_AT_V
SCTP_AT_V_2_2	Ensure that the IUT on receipt of an ABORT removes the association. Further message exchanges between
	tester and IUT need to take place to verify the removal of the association from outside the SUT. such that an ABORT message is sent to SUT in it. SUT: Client or Server
SCTP_AT_V_2_6	Ensure that the IUT on receipt of SHUTDOWN-ACK message in Shutdown Sent state
	sends a SHUTDOWN COMPLETE message and terminates the association. tester such that SHUTDOWN-ACK is sent in response to SHUTDOWN message. SUT: Client or Server
SCTP_AT_V_2_14	Ensure that the IUT, if there is still outstanding DATA, receives a SHUTDOWN
	that acknowledges the outstanding DATA, sends a SHUTDOWN-ACK. tester such that there is still outstanding DATA in IUT which has not been acknowledged by SACK and that the tester sends SHUTDOWN MESSAGE to IUT that acknowledges this DATA. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_AT/ SCTP_AT_I
SCTP_AT_I_2_3	Ensure that the IUT on receipt of an Terminate primitive will send a SHUTDOWN
	message to its peer only when all the outstanding DATA has been acknowledged by the tester. sent from SUT to the tester. Arrange the data in SUT such that Terminate primitive is received from upper layers. SUT: Client or Server
SCTP_AT_I_2_4	Ensure that the IUT starts the T2-Shutdown timer and after its expiry a SHUTDOWN message is
	sent again. tester such that no SHUTDOWN-ACK or DATA is sent in response to SHUTDOWN. SUT: Client or Server
SCTP_AT_I_2_5	Ensure that the IUT after retransmitting SHUTDOWN message for ASSOCIATION.MAX.RETRANS
	or TimeOut occurs for T5-shutdown-guard timer, removes the association and optionally sends an ABORT. Further message exchanges between tester and IUT need to take place to verify the removal of the association from outside the SUT. tester such that in response to SHUTDOWN no SHUTDOWN-ACK or DATA message is sent. SUT: Client or Server
SCTP_AT_I_2_7_1	Ensure that the IUT, if it is in Shutdown sent state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown sent state. SUT: Client or Server
SCTP_AT_I_2_7_2	Ensure that the IUT, if it is in Shutdown receive state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown receive state. SUT: Client or Server
SCTP_AT_I_2_7_3	Ensure that the IUT, if it is in Shutdown pending state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown pending state. SUT: Client or Server
SCTP_AT_I_2_7_4	Ensure that the IUT, if it is in Shutdown-Ack sent state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown-Ack sent state. SUT: Client or Server
SCTP_AT_I_2_8	Ensure that the IUT, if it is in Shutdown Sent state and receives data,
	acknowledges the message and restarts the T2-Shutdown timer. tester such that after receiving SHUTDOWN message, DATA message is sent to SUT. SUT: Client or Server
SCTP_AT_I_2_9	Ensure that the IUT, if it is in Shutdown Receive state and receives data,
	discards the data. tester such that DATA is sent to SUT after sending SHUTDOWN message. Also in SUT there is outstanding DATA for which SACK has not come from tester. SUT: Client or Server
SCTP_AT_I_2_10	Ensure that the IUT, if there is still outstanding DATA, does not send a
	SHUTDOWN-ACK on reception of a SHUTDOWN (even received multiple times). tester such that it sends SHUTDOWN message to IUT. The SHUTDOWN should not acknowledge the last used DATA of the SUT, i.e. that in IUT there is still outstanding DATA which has not been acknowledged. Then a second SHUTDOWN has to be sent which again does not acknowledge the last used DATA of the IUT. SUT: Client or Server
SCTP_AT_I_2_11	Ensure that the IUT, after expiry of T2-Shutdown timer, sends a SHUTDOWN-ACK
	message again. tester such that no SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_AT_I_2_12	Ensure that the IUT, after retransmitting SHUTDOWN-ACK message for
	ASSOCIATION.MAX.RETRANS times, removes the association and optionally sends an ABORT. tester such that no SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_AT_I_2_13	Ensure that the IUT, if it is in Shutdown-Ack Sent state, accept a
	SHUTDOWN COMPLETE message and removes the association. tester such that SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_IMH
SCTP_Generic_Tests/ SCTP_IMH/ SCTP_IMH_I
SCTP_IMH_I_3_7	Ensure that the IUT on receipt of an ABORT message with incorrect
	verification tag, discards the message. Arrange the data at the tester such that ABORT message is sent to SUT with incorrect verification tag. SUT: Client or Server
SCTP_IMH_I_3_10	Ensure that the IUT on receipt of a SHUTDOWN-COMPLETE message with invalid
	verification tag, discards the message. tester such that SHUTDOWN-COMPLETE message with invalid verification tag is sent to SUT in Shutdown Ack Sent state. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_DM
SCTP_Generic_Tests/ SCTP_DM/ SCTP_DM_O
SCTP_DM_O_4_2_2	Ensure that the IUT on receipt of an INIT message after sending
	a SHUTDOWN-ACK message, discards the INIT message and retransmits the SHUTDOWN-ACK message. Arrange the data at the tester such that after sending a SHUTDOWN-ACK message, discards the INIT message and retransmits the SHUTDOWN-ACK message. SUT: Client or Server
SCTP_DM_O_4_4	Ensure that the IUT on receipt of a COOKIE-ACK message, after association is
	established, discards the COOKIE-ACK message. Arrange the data at the tester such that COOKIE+ACK message is retransmitted to SUT after association is established between tester and sut. SUT: Client or Server
SCTP_DM_O_4_5	Ensure that the IUT on receipt of a SHUTDOWN message, after sending a
	SHUTDOWN message on its own, sends a SHUTDOWN-ACK message. Arrange the data at the tester such that SHUTDOWN message is send after receiving SHUTDOWN message from the other end. SUT: Client or Server
SCTP_DM_O_4_6_2	Ensure that the IUT on receipt of a SHUTDOWN message in closed state, sends
	an ABORT message. sent to SUT which is in closed state. Reference: RFC 4960/2960, section 9.2 SUT: Client or Server
SCTP_DM_O_4_6_3	Ensure that the IUT on receipt of a SHUTDOWN message in Shutdown Sent state,
	sends a SHTUDOWN-ACK message and restarts T2-Shutdown timer. data in SUT such that terminate primitve is received from ULP to terminate the association. Arrange data at the tester such that SHUTDOWN message is sent to SUT. SUT: Client or Server
SCTP_DM_O_4_7_2	Ensure that the IUT on receipt of a SHUTDOWN-ACK message, in Established
	state, discards the message or sends an ABORT. Arrange the data at the tester such that SHUTDOWN-ack message is sent to SUT with correct verification tag. SUT: Client or Server
SCTP_DM_O_4_7_3	Ensure that the IUT on receipt of a SHUTDOWN-ACK message in SHUTDOWN-ACK
	sent state, send a SHUTDOWN-COMPLETE message and closes the association. data at the tester such that SHUTDOWN message is sent to SUT. Also, SHUTDOWN-ACK message is sent to SUT after receiving SHUTDOWN-ACK message. SUT: Client or Server
SCTP_DM_O_4_8	Ensure that the IUT on receipt of a COOKIE-ECHO message in Established
	state, discards the message and current state is not disturbed. data at the tester such that COOKIE-ECHO message with invalid Message Authentication Code (MAC) is sent to SUT. SUT: Client or Server
SCTP_DM_O_4_10	Ensure that the IUT on receipt of a data message in Shutdown-Ack sent state,
	discards the message and may send an ABORT. data at the tester such that SHUTDOWN message is sent to SUT. Also, DATA message is sent from tester to SUT. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_FH
SCTP_Generic_Tests/ SCTP_FH/ SCTP_FH_V
SCTP_FH_V_5_2	Ensure that the IUT on receipt of a HEARTBEAT message, sends a HEARTBEAT-ACK
	message with the information carried in the HEARTBEAT message. data at the tester such that HEARTBEAT message is sent to the SUT. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_FH/ SCTP_FH_I
SCTP_FH_I_5_1_1	Ensure that the IUT when total number of consecutive retransmissions
	to a peer exceeds the Association.Max.Retrans, closes the association and may send an ABORT. data at the tester such that no SACK is sent in response to DATA received from SUT. SUT: Client or Server
SCTP_FH_I_5_1_2	Ensure that the IUT on receipt of a SACK from the tester, for a DATA which
	has been retransmitted, resets the counter which counts the total retransmission to an endpoint. data at the tester such that SACK is sent in response to DATA received from SUT only when the DATA has been retransmitted for two to three times. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_FH/ SCTP_FH_O
SCTP_FH_O_5_3_1	Ensure that the IUT on receipt of a DATA message, from a transport address
	corresponding to which there is no association, sends an ABORT message. data at the tester such that DATA is sent to the SUT. SUT: Client or Server
SCTP_FH_O_5_3_2	Ensure that the IUT on receipt of an ABORT message from a transport address
	corresponding to which there is no association, discards the message. data at the tester such that ABORT is sent to the SUT. SUT: Client or Server
SCTP_FH_O_5_3_3	Ensure that the IUT on receipt of a SHUTDOWN-ACK message from a transport
	address corresponding to which there is no association, sends a SHUTDOWN COMPLETE message with T_Bit set. data at the tester such that SHTUDOWN-ACK is sent to the SUT. SUT: Client or Server
SCTP_FH_O_5_3_4	Ensure that the IUT on receipt of an SHUTDOWN COMPLETE message from a
	transport address corresponding to which there is no association, discards the message. data at the tester such that SHUTDOWN COMPLETE is sent to the SUT. SUT: Client or Server
SCTP_FH_O_5_3_5	Ensure that the IUT on receipt of a COOKIE ECHO message from a
	a non-unicast address where there is no association between them, discards the message. data at the tester such that COOKIE ECHO is sent to the SUT with non unicast source address. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_E
SCTP_Generic_Tests/ SCTP_E/ SCTP_E_O
SCTP_E_O_6_2	Ensure that the IUT on receipt of ERROR message with cause Stale
	Cookie Error in state other than Cookie Echoed state, discards the message and association is not disturbed. Arrange the data at the tester such that ERROR message with cause stale cookie error is sent. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_E/ SCTP_E_I
SCTP_E_I_6_3	Ensure that the IUT on receipt of DATA message to a non-existing
	stream, sends an ERROR message with cause Invalid Stream Identifier or aborts the association. Arrange the data at the tester such that a DATA message is sent to SUT on a stream which is not existing for the association. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_BDC
SCTP_Generic_Tests/ SCTP_BDC/ SCTP_BDC_V
SCTP_BDC_V_7_6	Ensure that the IUT on receipt of SHUTDOWN chunk
	bundled with a SACK, accepts the packet and responds with a SHUTDOWN-ACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ACK with COOKIE-ACK as the first chunk. SUT: Client or Server
SCTP_BDC_V_7_7	Ensure that the IUT on receipt of SACK bundled
	with DATA chunks accepts the packet and responds with a SACK for the received DATA chunks. Arrange the data at the tester such that SACK bundled with DATA chunks is sent to SUT. SUT: Client or Server
SCTP_BDC_V_7_8	Ensure that the IUT on receipt of a SHUTDOWN-ACK
	bundled with DATA chunks discards the packet and remains in Shutdown sent state or sends an ABORT or accepts the SHUTDOWN-ACK but ignores the DATA chunks, which would mean that the IUT has to send a SHUTDOWN-COMPLETE. and SUT is in SHUTDOWN-SENT state. Arrange the data at the tester such that DATA is bundled with SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_BDC/ SCTP_BDC_I
SCTP_BDC_I_7_3	Ensure that the IUT, on receipt of any DATA chunks bundled with
	SHUTDOWN-COMPLETE chunk discards this packet and remains in SHUTDOWN-ACK sent state or sends an ABORT or accepts the SHUTDOWN-COMPLETE but ignores the DATA chunks. SUT is in SHUTDOWN-ACK sent state. Arrange the data at the tester such that DATA chunks are multiplexed with SHUTDOWN COMPLETE chunk with SHUTDOWN-COMPLETE as the first chunk. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_D
SCTP_Generic_Tests/ SCTP_D/ SCTP_D_V
SCTP_D_V_8_1	Ensure that the IUT is able to send Unsegmented user message, if resolving
	SCTP packet is less than or equal to MTU size. the data from user part such that size of the resolving SCTP packet is less than or equal to MTU size and smaller than the maximum supported size of user data. SUT: Client or Server
SCTP_D_V_8_2	Ensure that the IUT is able to perform data segmentation and transmission
	the large size data from user part such that size exceeds MTU. SUT: Client or Server
SCTP_D_V_8_3	Ensure that the IUT is able to receive segmented data
	the segmented data such that SUT receives first, middle and end piece of segmented data. SUT: Client or Server
SCTP_D_V_8_4	Ensure that the IUT on receipt of a SACK cancels the timer, T3-rtx and
	does not increase it. the data at the tester such that SACK is sent in response of DATA message. SUT: Client or Server
SCTP_D_V_8_9	Ensure that the IUT, before it send new DATA chunks, first transmits any
	outstanding DATA chunks, which are marked for retransmission. the data at the tester such that tester ignores TSN3 and sends SACK with gap in DATA. SUT: Client or Server
SCTP_D_V_8_10	Ensure that the IUT, if it sends DATA to a multihomed endpoint on one
	address and receives a SACK from the alternate address in that host, it accepts the SACK. such that on reception of a packet containing a DATA chunk, the packet containing the corresponding SACK chunk is sent with a source address different from the destination address of the receive packet containing the DATA chunk. SUT: Client or Server
SCTP_D_V_8_13	Ensure that the IUT can receive DATA equal to maximum User Data size
	defined by the upper layer. the data at the tester such that DATA chunk with size of data equal to the maximum user data size of the SUT is sent to SUT. SUT: Client or Server
SCTP_D_V_8_14	Ensure that the IUT can send DATA equal to maximum User Data size defined
	by the upper layer. the data from user part such that size is equal to the maximum User Data size defined by the upper layer. SUT: Client or Server
SCTP_D_V_8_15	Ensure that the IUT on receipt of DATA larger than own User Data size,
	send an ABORT with cause "Out of Resources." the data at the tester such that DATA chunk with size of data larger than user data size of the SUT is sent to SUT SUT: Client or Server
SCTP_Generic_Tests/ SCTP_D/ SCTP_D_I
SCTP_D_I_8_5	Ensure that the IUT after expiry of the timer, T3-rtx, sends the DATA
	message again. the data at the tester such that no SACK is sent in response of DATA message. SUT: Client or Server
SCTP_D_I_8_11	Ensure that the IUT on receipt of a DATA chunk with no user data, sends an
	ABORT with cause "No User Data" the data at the tester such that DATA chunk with no user data is sent to SUT. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_D/ SCTP_D_O
SCTP_D_O_8_6	Ensure that the IUT on receipt of duplicate DATA chunks should report this
	in a SACK and number of duplicate TSN count should be reset once reported in SACK. the data at the tester such that it will send duplicate DATA to SUT. SUT: Client or Server
SCTP_D_O_8_7	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit more than one DATA. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. SUT: Client or Server
SCTP_D_O_8_8	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit DATA, until it receives a SACK, where the rwnd indicates that the peer has buffer space again. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. Data should be in large size so it will be transmitted in segments. SUT: Client or Server
SCTP_D_O_8_8_M2UA	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit DATA, until it receives a SACK, where the rwnd indicates that the peer has buffer space again. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. Data should be in large size so it will be transmitted in segments. SUT: Client or Server
SCTP_D_O_8_12	Ensure that the IUT on receipt of a SACK that contains Cumulative TSN
	field less than the current Cumulative TSN Ack point, discards the SACK. the data at the tester such that SACK chunk with cumulative TSN less than the cumulative TSN ack point of SUT is sent to SUT. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_A
SCTP_Generic_Tests/ SCTP_A/ SCTP_A_V
SCTP_A_V_9_1	Ensure that the IUT send a SACK for the first DATA chunk it receives
	immediately. the data such that tester sends the first DATA and wait for SACK. SUT: Client or Server
SCTP_A_V_9_2	Ensure that the IUT can acknowledge the reception of multiple DATA
	chunks. the Tester such that it sends multiple DATA chunks bundled in on SCTP packet. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_A/ SCTP_A_O
SCTP_A_O_9_3	Ensure that the IUT, if it detects a gap in the received data chunk
	sequence, sends a SACK immediately where it reports the missing TSN in the GAP ACK block. the data such that SUT receive gap in DATA. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_M
SCTP_Generic_Tests/ SCTP_M/ SCTP_M_I
SCTP_M_I_10_1	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 11, sends an ERROR with cause "Unrecognized Chunk type" and a SACK for the DATA chunk the Tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 11. SUT: Client or Server
SCTP_M_I_10_2	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 00, discards this SCTP packet and does not process the DATA chunk. the data at the tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 00. SUT: Client or Server
SCTP_M_I_10_3	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 01, discards this SCTP packet and does not process the DATA chunk. Additionally it has to send an ERROR with cause "Unrecognized Chunk Type" the data at the tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 01. SUT: Client or Server
SCTP_M_I_10_4	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 10, discards this chunk and sends a SACK for the DATA chunk. the Tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 10. SUT: Client or Server
SCTP_Generic_Tests/ SCTP_RT
SCTP_Generic_Tests/ SCTP_RT/ SCTP_RT_I
SCTP_RT_I_11_1	Ensure that the IUT, if timer T3-rtx expires on a destination address,
	increases value of RTO for that address, i.e. increases T3-rtx timer. the data at the tester such that SACK is not sent for the data received from SUT. SUT: Client or Server
SCTP_RT_I_11_2	Ensure that the IUT, if timer T3-rtx expires on a destination address,
	increases value of RTO for that address. the data at the tester such that SACK is not sent for the data received. Reference: RFC 4960/2960 [1], section 6.3.3 SUT: Client or Server
SCTP_RT_I_11_3	Ensure that the IUT, if it retransmits DATA to an alternate address,
	uses the RTO value of that address and not that of the previous address. the data at the tester such that SACK is not sent for the data received. Before sending the DATA note the T3-rtx value corresponding to both IP addresses. SUT: Client or Server
SCTP_Loopback_Tests
SCTP_Loopback_GAP_TEST_03	Send GAP DATA. Test retransmission
	SUT: Firewall
SCTP_Loopback_RAW_TEST_02	Send RAW data
	SUT: Firewall
SCTP_Loopback_RAW_TEST_TIMED_OUTPUTS	Send RAW data
	SUT: Firewall
SCTP_Loopback_RAW_Assoc_DATA_Shutdown	Example to show sending a complete INIT/INIT_ACK
	SUT: Firewall
SCTP_Loopback_DATA_TGEN	Sends SCTP DATA in a loop
	SUT: Firewall
SCTP_Loopback_New_Test	Test for demonstrating building a new loopback test
	Test for demonstrating building a new loopback test
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AS
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AS/ SCTP_Loopback_AS_V
SCTP_Loopback_AS_V_1_1_1	Ensure the IUT makes a complete association procedure
	Configure the IUT to send an INIT to the tester. SUT: Client Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_Loopback_AS_V_1_5_1	Ensure that the IUT on re-establishing an association to a peer, uses a random Initiate-Tag value in the INIT message
	association can be established and terminated between tester and SUT. Status: Mandatory
SCTP_Loopback_AS_V_1_6_2	Ensure that the IUT on receipt of an INIT-ACK message with the listed parameters accepts this message
	and responds to it. tester such that the listed parameters (IPv4 Address Parameter, IPv6 Address Parameter, CookiePreservative are sent in INIT-ACK message. SUT: Client
SCTP_Loopback_AS_V_1_7_3	Ensure that the IUT, if there is a mismatch in the Outbound Stream and Inbound Stream parameters in INIT and INIT-ACK message,
	either aborts the association or settles with minimum of the two parameters. at the tester such that INIT-ACK message is sent from tester with MaximumInboundStreams XSUT: Client
SCTP_Loopback_AS_V_1_10_2	Ensure that the IUT on receipt of an INIT-ACK message with no optional IP
	addresses sends an COOKIE_ECHO message to the source IP address from which INIT-ACK was received. the data at the tester such that no IP addresses are sent in INIT-ACK optional IP address field. SUT: Client
SCTP_Loopback_AS_V_1_11_2	Ensure that the IUT on receipt of an INIT-ACK message with one or more
	IP addresses uses all of these IP addresses plus the IP address from where INIT-ACK comes combined with the SCTP source port number as the destination transport address and sends an COOKIE-ECHO message to one of the transport addresses. Arrange the data at the tester such that one or more IP addresses are sent in INIT-ACK message. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AS/ SCTP_Loopback_AS_I
SCTP_Loopback_AS_I_1_2_1	Ensure that the IUT, if T1-Init timer expires, transmits the INIT message again
	Arrange the data at the tester such that INIT-ACK is never sent in response to INIT message. SUT: Client
SCTP_Loopback_AS_I_1_2_2	Ensure that the IUT, if T1-Cookie timer expires, transmits the COOKIE-ECHO message again
	to send an INIT to the tester. Arrange the data at the tester such that COOKIE-ACK is not sent in response to COOKIE-ECHO message Status: Mandatory SUT: Client Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_Loopback_AS_I_1_3_1	Ensure that the IUT, if INIT is retransmitted for MAX_INIT_RETRANS times, stops the initialisation
	process. to the tester. Arrange the data at the tester such that INIT-ACK is never sent in response to INIT message SUT: Client Reference: RFC 4960/2960 [1], section 4 (Note 2) [1]
SCTP_Loopback_AS_I_1_3_2	Ensure that the IUT, if COOKIE-ECHO message is retransmitted for MAX_INIT_RETRANS times, stops the initialisation process
	Arrange the data at the tester such that COOKIE-ACK is never sent in response to COOKIE-ECHO message. SUT: Client Status: Mandatory
SCTP_Loopback_AS_I_1_7_4	Ensure that the IUT, if OutboundStreams is found zero in the received INIT-ACK message, destroys its TCB and may send an ABORT message
	for that INIT-ACK. Further message exchanges between tester and IUT need to take place to verify the TCB removal from outside the SUT. the tester such that INIT-ACK message with OutboundStreams equal to 0 is sent from tester. SUT: Client
SCTP_Loopback_AS_I_1_12_2
	Ensure that the IUT on receipt of an INIT-ACK message with Host Name address and no other IP address sends an ABORT message with error Unresolvable Address. the data at the tester such that Host Name address is sent to SUT with no other IP address in INIT-ACK message SUT: Client
SCTP_Loopback_AS_I_1_14_2	Ensure that the IUT on receipt of an INIT-ACK message with Init-Tag equal to
	zero destroys the TCB and may send an ABORT. Arrange the data at the tester such that Initiate-tag field equal to zero is sent to SUT in INIT-ACK message. SUT: Client
SCTP_Loopback_AS_I_1_15	** NOT SUPPORTED. WOULD REQUIRE 4 NETWORK CARDS. **
	establishment. addresses X and Y. Association is not established between tester and SUT. Arrange the data at the tester such that no INIT-ACK message is sent to SUT in Response to an INIT. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AS/ SCTP_Loopback_AS_O
SCTP_Loopback_AS_O_1_9_1	Ensure the IUT on receipt of an INIT message for starting an association with
	transport addresses which are already in assocation, responds with an INIT-ACK message. data at the tester such that INIT message is sent for making an association with SUT using the same IP addresses. SUT: MGC Reference: RFC 4960/2960 [1], sections 5.2.2 and darft ietf[6], section 2.6
SCTP_Loopback_AS_O_1_9_2	Ensure the IUT on receipt of an INIT message for starting association with
	transport addresses which are not the same as the already established, responds with an ABORT message with error "restart of an association with new addresses. data at the tester such that INIT message is sent for establishing an association with SUT. The additional transport addresses should contain a new, not yet used, IP address. SUT: MGC Reference: RFC 4960/2960 [1], sections 5.1[1] and 5.1.6[1]
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AT
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_AT/ SCTP_Loopback_AT_V
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_IMH
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_IMH/ SCTP_Loopback_IMH_I
SCTP_Loopback_IMH_I_3_2	Ensure that the IUT on receipt of an invalid INIT-ACK message with message
	length < length of all mandatory parameters, discards the message or may send an ABORT message. Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that INIT-ACK message is sent to SUT with message length less than the length of all mandatory parameters. Reference:RFC 4960/2960[1], section 5.1 SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_DM
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_DM/ SCTP_Loopback_DM_O
SCTP_Loopback_DM_O_4_1	Ensure that the IUT on receipt of an INIT message after sending
	an INIT message on its own, sends an INIT-ACK message. Arrange the data at the tester such that INIT message is sent to SUT upon reception of an INIT from the SUT. SUT: Client
SCTP_Loopback_DM_O_4_3	Ensure that the IUT on receipt of a duplicate INIT-ACK message, after sending
	a COOKIE-ECHO message, discards the INIT-ACK message. Arrange the data at the tester such that the same INIT-ACK message is sent to SUT after receiving COOKIE-ECHO message. SUT: Client
SCTP_Loopback_DM_O_4_6_1	Ensure that the IUT on receipt of a SHUTDOWN message, after sending an
	INIT message on its own, discards the SHUTDOWN message. Arrange the data at the tester such that SHUTDOWN message is sent to SUT after receiving INIT message from it. SUT: Client
SCTP_Loopback_DM_O_4_7_1	Ensure that the IUT on receipt of a SHUTDOWN-ACK message, in Cookie Wait
	state, sends a SHUTDOWN-COMPLETE message and current state is not disturbed. Arrange the data at the tester such that SHUTDOWN-ack message is sent to SUT after receiving INIT message from it. SUT: Client
SCTP_Loopback_DM_O_4_9	Ensure the IUT on receipt of a SHUTDOWN COMPLETE message in Cookie wait
	state, discards the message. Arrange the data at the tester such that SHUTDOWN COMPLETE message is sent to SUT after receiving INIT message from it. Status: Mandatory Reference: RFC 4960/2960 [1], sections 9.2
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_FH
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_FH/ SCTP_Loopback_FH_V
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_FH/ SCTP_Loopback_FH_O
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_E
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_E/ SCTP_Loopback_E_O
SCTP_Loopback_E_O_6_1	Ensure that the IUT on receipt of ERROR message with cause Stale
	Cookie Error in Cookie Echoed state, takes one of the following actions depending on the implementation: 1) Sends a new INIT message to the tester to generate a new cookie and reattempt the setup procedure. 2) Discards the TCB and changes the state to closed. 3) Sends a new INIT message to the tester adding a cookie preservative parameter requesting the extension on lifetime of cookie. Arrange the data at the tester such that ERROR message with cause stale cookie error is sent in response to COOKIE-ECHO message. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_E/ SCTP_Loopback_E_I
SCTP_Loopback_E_I_6_4	Ensure that the IUT on receipt of INIT-ACK message without a Cookie
	parameter, sends an ERROR message with cause Missing Mandatory Parameter or may send an ABORT or no message at all. Arrange the data at the tester such that a INIT-ACK is sent to SUT without Cookie parameter. SUT: Client
SCTP_Loopback_E_I_6_5	Ensure that the IUT on receipt of INIT-ACK message with an
	unknown TLV parameter, sends an ERROR message with cause Unrecognized Parameters. Arrange the data at the tester such that a INIT-ACK is sent to SUT with an unknown TLV parameter. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_BDC
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_V
SCTP_Loopback_BDC_V_7_5	Ensure that the IUT on receipt of COOKIE-ACK chunk
	bundled with DATA chunks, accepts the COOKIE-ACK and responds with a SACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ACK with COOKIE-ACK as the first chunk. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_I
SCTP_Loopback_BDC_I_7_2_discarded	Ensure that the IUT on receipt of DATA chunks bundled with
	INIT-ACK chunk discards this packet or sends an ABORT or accepts the INIT-ACK but ignores the DATA chunks. Arrange the data at the tester such that a data chunks are bundled with INIT-ACK message. SUT: Client
SCTP_Loopback_BDC_I_7_2_abort	Ensure that the IUT on receipt of DATA chunks bundled with
	INIT-ACK chunk discards this packet or sends an ABORT or accepts the INIT-ACK but ignores the DATA chunks. Arrange the data at the tester such that a data chunks are bundled with INIT-ACK message. SUT: Client
SCTP_Loopback_BDC_I_7_2_ignore_data	Ensure that the IUT on receipt of DATA chunks bundled with
	INIT-ACK chunk discards this packet or sends an ABORT or accepts the INIT-ACK but ignores the DATA chunks. Arrange the data at the tester such that a data chunks are bundled with INIT-ACK message. SUT: Client
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_D
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_D/ SCTP_Loopback_D_V
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_D/ SCTP_Loopback_D_I
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_A
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_A/ SCTP_Loopback_A_V
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_A/ SCTP_Loopback_A_O
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_M
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_M/ SCTP_Loopback_M_I
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_RT
SCTP_Loopback_Tests/ SCTP_Loopback_Client_Tests/ SCTP_Loopback_RT/ SCTP_Loopback_RT_I
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_AS
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_AS/ SCTP_Loopback_AS_V
SCTP_Loopback_AS_V_1_1_2	Ensure the IUT can establish a complete association after receiving an INIT from the tester
	Arrange the data at the tester such that an INIT is sent to IUT. SUT: Server Status: Mandatory Reference: RFC 4960/2960 [1], sections 5.1 [1] and 5.1.6[1]
SCTP_Loopback_AS_V_1_5_2	Ensure that the IUT on re-establishing an association to a peer, uses a random Initiate-Tag value in the INIT-ACK message
	Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that normal association can be established and terminated between tester and SUT. SUT: Server
SCTP_Loopback_AS_V_1_6_1	Ensure that the IUT on receipt of an INIT message with the listed parameters accepts this message
	and responds to it. tester such that the listed parameters (IPv4 Address Parameter, IPv6 Address Parameter, CookiePreservative, Supported Address Type Parameter) are sent in INIT message. SUT: Server
SCTP_Loopback_AS_V_1_7_1_A	Ensure that the IUT, if there is a mismatch in the Outbound Stream and Inbound Stream parameters
	in INIT and INIT-ACK message, either aborts the association or settles with minimum of the two parameters. of the SUT is Z. Arrange data at the tester such that INIT message is sent from tester with MaximumInboundStreams YSCTP_Loopback_AS_V_1_7_1_B tests aborting the association SUT: Server
SCTP_Loopback_AS_V_1_7_1_B	Ensure that the IUT, if there is a mismatch in the Outbound Stream and Inbound Stream parameters
	in INIT and INIT-ACK message, either aborts the association or settles with minimum of the two parameters. of the SUT is Z. Arrange data at the tester such that INIT message is sent from tester with MaximumInboundStreams YSCTP_Loopback_AS_V_1_7_1_B tests aborting the association SUT: Server
SCTP_Loopback_AS_V_1_7_5	Ensure that the IUT supports at least 2 incoming streams and 2 outgoing streams
	at the tester such that INIT message is sent from tester with OutboundStreams and MaximumInboundStreams set to 2. SUT: Server
SCTP_Loopback_AS_V_1_10_1	Ensure that the IUT on receipt of an INIT message with no IP addresses
	sends an INIT-ACK message to the source IP address from where INIT was received. Arrange the data at the tester such that no IP addresses are sent in INIT. SUT: Server
SCTP_Loopback_AS_V_1_11_1	Ensure that the IUT on receipt of an INIT message with one or more IP
	addresses sends an INIT-ACK message to the source IP addresses from where INIT was received and uses all of these IP address plus the IP address from where INIT comes combined with the SCTP source port number as the destination transport address. Arrange the data at the tester such that one or more IP addresses are sent in INIT message. SUT: Server
SCTP_Loopback_AS_V_1_12_1	Ensure that the IUT on receipt of an INIT message with Host Name address and
	no other IP address sends an ABORT message with error Unresolvable Address. the data at the tester such that Host Name address is sent to SUT with no other IP address in INIT message SUT: Server
SCTP_Loopback_AS_V_1_13_1	Ensure that the IUT on receipt of an INIT message with Supported address field
	sends an INIT-ACK message with the address of the type contained in the Supported address field in the received INIT. the data at the tester such that Supported Address field is sent in INIT. Also the SUT is capable of using the address type mentioned in Supported Address field. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_AS/ SCTP_Loopback_AS_I
SCTP_Loopback_AS_I_1_4	Ensure that the IUT remains in closed state if COOKIE-ECHO message is not received
	INIT-ACK message. Also let maximum no of association which SUT can establish is n and n-1 of them are already established. Try to make the nth association. SUT: Server
SCTP_Loopback_AS_I_1_7_2	Ensure that the IUT, if OutboundStreams are found zero in the received INIT message,
	sends an ABORT message for that INIT. or silently discards the received message. the tester such that INIT message with OutboundStreams equal to 0 is sent from tester. SUT: Server
SCTP_Loopback_AS_I_1_8_1	Ensure that the IUT on receipt of unrecognised TLV parameters in received INIT message fills them
	in the Unrecognised Parameters of the INIT-ACK and continues on processing of further parameters. such that a datagram with undefined parameter type and MSB two bits in the parameter type equal to 11 is sent to tester. SUT: Server Status: Mandatory Reference: RFC4960/2960, section 3.3.3.1 / DTS/MTS-00086 v0.0.4 (2004-07)
SCTP_Loopback_AS_I_1_8_2	Ensure that the IUT on receipt of an unrecognized parameter in the INIT-chunk does not process any further parameters and does not report it
	a datagram with undefined parameter type and MSB two bits in the parameter type equal to 00 is sent to the IUT Status: Mandatory SUT: Server
SCTP_Loopback_AS_I_1_8_3	Ensure that the IUT on receipt of an unrecognized parameter in the INIT-chunk does not process any further
	parameters and report it using an Unrecognized Parameters parameter field." datagram with undefined parameter type and MSB two bits in the parameter type equal to 01 is sent to the IUT. SUT: Server
SCTP_Loopback_AS_I_1_8_4	Ensure that the IUT on receipt of an unrecognized
	parameter in the INIT-chunk skips this parameter and does process any further parameters. tester such that a datagram with undefined parameter type and MSB two bits in the parameter type equal to 10 is sent to the IUT. Status: Mandatory SUT: Server
SCTP_Loopback_AS_I_1_13_2	Ensure that the IUT on receipt of an INIT message with Supported address type
	which the receiver is incapable of using sends an ABORT message with cause Unresolvable Address. the data at the tester such that Supported address type field IPv6 is sent to SUT in INIT message (END USER PLEASE NOTE: Supported Address Type IPv4 will not be sent. Your SUT should not support IPv6.). Also receiver (i.e. SUT) is not capable of using supported address type, i.e ONLY IPv4. SUT: Server
SCTP_Loopback_AS_I_1_14_1	Ensure that the IUT on receipt of an INIT message with Init-Tag equal to zero
	destroys the TCB and may send an ABORT. Pre-condition: Association is not established between tester and SUT. Arrange the data at the tester such that Initiate-tag field equal to zero is sent to SUT in INIT message. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_IMH
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_IMH/ SCTP_Loopback_IMH_I
SCTP_Loopback_IMH_I_3_1	Ensure that the IUT on receipt of an invalid INIT message with message
	length < length of all mandatory parameters, discards the message or may send an ABORT message. the data at the tester such that INIT message is sent to SUT with message length less than the length of all mandatory parameters. SUT: Server
SCTP_Loopback_IMH_I_3_3	Ensure that the IUT on receipt of a COOKIE-ECHO message with invalid
	verification tag, discards the COOKIE-ECHO message. Arrange the data at the tester such that COOKIE-ECHO message with a different verification tag (Different from what received in INIT-ACK) is sent in response to INIT-ACK. SUT: Server
SCTP_Loopback_IMH_I_3_4	Ensure that the IUT on receipt of an INIT message with wrong CRC-32c
	checksum, discards the INIT message. Tester_IP_CDC --> RFC3309_CRC32_Checksum in the System Configuration to FALSE and restart the test environment. Arrange data at the tester such that it sends INIT message to SUT with wrong CRC-32c checksum. SUT: Server
SCTP_Loopback_IMH_I_3_5	Ensure that the IUT on receipt of a COOKIE-ECHO message with other cookie
	than sent in INIT_ACK, discards the message. the data at the tester such that COOKIE-ECHO message is sent with cookie different from received cookie in INIT-ACK. SUT: Server
SCTP_Loopback_IMH_I_3_6	Ensure that the IUT on receipt of a COOKIE-ECHO message after lifetime
	received in INIT-ACK message has expired, should send an ERROR with cause “"Stale Cookie Error”". the data at the tester such that COOKIE-ECHO message is sent after life time of the received cookie in INIT-ACK message has expired. SUT: Server
SCTP_Loopback_IMH_I_3_8_A	Ensure that the IUT on receipt of an INIT message with a packet length
	smaller than the Chunk length defined, sends an ABORT message or discards the message. SCTP_Loopback_IMH_I_3_8_B discards the message the data at the tester such that chunk length is greater than the length of the message being sent to other SUT. SUT: Server
SCTP_Loopback_IMH_I_3_8_B	Ensure that the IUT on receipt of an INIT message with a packet length
	smaller than the Chunk length defined, sends an ABORT message or discards the message. SCTP_Loopback_IMH_I_3_8_B discards the message the data at the tester such that chunk length is greater than the length of the message being sent to other SUT. SUT: Server
SCTP_Loopback_IMH_I_3_9	Ensure that the IUT on receipt of a SHUTDOWN-ACK message with invalid
	verification tag, discards the message. tester such that SHUTDOWN-ACK message with invalid verification tag is sent to SUT in Shutdown Sent state. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_DM
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_DM/ SCTP_Loopback_DM_O
SCTP_Loopback_DM_O_4_2_1	Ensure that the IUT on receipt of an INIT message when association
	is already established, sends an INIT-Ack message and existing association is not disturbed. to SUT when association is established between tester and SUT. Also, source IP address, destination IP address and port numbers are the same as in the established association. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_E
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_E/ SCTP_Loopback_E_I
SCTP_Loopback_E_I_6_6	Ensure that the IUT on receipt of COOKIE-ECHO message
	bundled with error (cause = Unrecognized Parameter), continues to establish the association. Arrange the data at the tester such that COOKIE-ECHO bundled with ERROR (cause = Unrecognized Parameters) is sent to SUT. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_BDC
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_V
SCTP_Loopback_BDC_V_7_4	Ensure that the IUT on receipt of COOKIE-ECHO chunk
	bundled with DATA chunks, accepts the packet and responds with a COOKIE-ACK bundled with a SACK or a single COOKIE-ACK and then a SACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ECHO as the first chunk. SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Server_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_I
SCTP_Loopback_BDC_I_7_1	Ensure that the IUT on receipt of any DATA chunks
	bundled with INIT chunk discard this packet. Arrange the data at the tester such that data chunks are bundled with INIT message. section 2.11 SUT: Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_AT
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_AT/ SCTP_Loopback_AT_V
SCTP_Loopback_AT_V_2_2	Ensure that the IUT on receipt of an ABORT removes the association. Further message exchanges between
	tester and IUT need to take place to verify the removal of the association from outside the SUT. such that an ABORT message is sent to SUT in it. SUT: Client or Server
SCTP_Loopback_AT_V_2_6	Ensure that the IUT on receipt of SHUTDOWN-ACK message in Shutdown Sent state
	sends a SHUTDOWN COMPLETE message and terminates the association. tester such that SHUTDOWN-ACK is sent in response to SHUTDOWN message. SUT: Client or Server
SCTP_Loopback_AT_V_2_14	Ensure that the IUT, if there is still outstanding DATA, receives a SHUTDOWN
	that acknowledges the outstanding DATA, sends a SHUTDOWN-ACK. tester such that there is still outstanding DATA in IUT which has not been acknowledged by SACK and that the tester sends SHUTDOWN MESSAGE to IUT that acknowledges this DATA. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_AT/ SCTP_Loopback_AT_I
SCTP_Loopback_AT_I_2_3	Ensure that the IUT on receipt of an Terminate primitive will send a SHUTDOWN
	message to its peer only when all the outstanding DATA has been acknowledged by the tester. sent from SUT to the tester. Arrange the data in SUT such that Terminate primitive is received from upper layers. SUT: Client or Server
SCTP_Loopback_AT_I_2_4	Ensure that the IUT starts the T2-Shutdown timer and after its expiry a SHUTDOWN message is
	sent again. tester such that no SHUTDOWN-ACK or DATA is sent in response to SHUTDOWN. SUT: Client or Server
SCTP_Loopback_AT_I_2_5	Ensure that the IUT after retransmitting SHUTDOWN message for ASSOCIATION.MAX.RETRANS
	or TimeOut occurs for T5-shutdown-guard timer, removes the association and optionally sends an ABORT. Further message exchanges between tester and IUT need to take place to verify the removal of the association from outside the SUT. tester such that in response to SHUTDOWN no SHUTDOWN-ACK or DATA message is sent. SUT: Client or Server
SCTP_Loopback_AT_I_2_7_1	Ensure that the IUT, if it is in Shutdown sent state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown sent state. SUT: Client or Server
SCTP_Loopback_AT_I_2_7_2	Ensure that the IUT, if it is in Shutdown receive state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown receive state. SUT: Client or Server
SCTP_Loopback_AT_I_2_7_3	Ensure that the IUT, if it is in Shutdown pending state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown pending state. SUT: Client or Server
SCTP_Loopback_AT_I_2_7_4	Ensure that the IUT, if it is in Shutdown-Ack sent state and receives data for transmission
	from upper layer, does not send this new data. such that upper layers send data to transmit when it is in Shutdown-Ack sent state. SUT: Client or Server
SCTP_Loopback_AT_I_2_8	Ensure that the IUT, if it is in Shutdown Sent state and receives data,
	acknowledges the message and restarts the T2-Shutdown timer. tester such that after receiving SHUTDOWN message, DATA message is sent to SUT. SUT: Client or Server
SCTP_Loopback_AT_I_2_9	Ensure that the IUT, if it is in Shutdown Receive state and receives data,
	discards the data. tester such that DATA is sent to SUT after sending SHUTDOWN message. Also in SUT there is outstanding DATA for which SACK has not come from tester. SUT: Client or Server
SCTP_Loopback_AT_I_2_10	Ensure that the IUT, if there is still outstanding DATA, does not send a
	SHUTDOWN-ACK on reception of a SHUTDOWN (even received multiple times). tester such that it sends SHUTDOWN message to IUT. The SHUTDOWN should not acknowledge the last used DATA of the SUT, i.e. that in IUT there is still outstanding DATA which has not been acknowledged. Then a second SHUTDOWN has to be sent which again does not acknowledge the last used DATA of the IUT. SUT: Client or Server
SCTP_Loopback_AT_I_2_11	Ensure that the IUT, after expiry of T2-Shutdown timer, sends a SHUTDOWN-ACK
	message again. tester such that no SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_Loopback_AT_I_2_12	Ensure that the IUT, after retransmitting SHUTDOWN-ACK message for
	ASSOCIATION.MAX.RETRANS times, removes the association and optionally sends an ABORT. tester such that no SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_Loopback_AT_I_2_13	Ensure that the IUT, if it is in Shutdown-Ack Sent state, accept a
	SHUTDOWN COMPLETE message and removes the association. tester such that SHUTDOWN COMPLETE is sent in response to SHUTDOWN-ACK. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_IMH
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_IMH/ SCTP_Loopback_IMH_I
SCTP_Loopback_IMH_I_3_7	Ensure that the IUT on receipt of an ABORT message with incorrect
	verification tag, discards the message. Arrange the data at the tester such that ABORT message is sent to SUT with incorrect verification tag. SUT: Client or Server
SCTP_Loopback_IMH_I_3_10	Ensure that the IUT on receipt of a SHUTDOWN-COMPLETE message with invalid
	verification tag, discards the message. tester such that SHUTDOWN-COMPLETE message with invalid verification tag is sent to SUT in Shutdown Ack Sent state. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_DM
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_DM/ SCTP_Loopback_DM_O
SCTP_Loopback_DM_O_4_2_2	Ensure that the IUT on receipt of an INIT message after sending
	a SHUTDOWN-ACK message, discards the INIT message and retransmits the SHUTDOWN-ACK message. Arrange the data at the tester such that after sending a SHUTDOWN-ACK message, discards the INIT message and retransmits the SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Loopback_DM_O_4_4	Ensure that the IUT on receipt of a COOKIE-ACK message, after association is
	established, discards the COOKIE-ACK message. Arrange the data at the tester such that COOKIE+ACK message is retransmitted to SUT after association is established between tester and sut. SUT: Client or Server
SCTP_Loopback_DM_O_4_5	Ensure that the IUT on receipt of a SHUTDOWN message, after sending a
	SHUTDOWN message on its own, sends a SHUTDOWN-ACK message. Arrange the data at the tester such that SHUTDOWN message is send after receiving SHUTDOWN message from the other end. SUT: Client or Server
SCTP_Loopback_DM_O_4_6_2	Ensure that the IUT on receipt of a SHUTDOWN message in closed state, sends
	an ABORT message. sent to SUT which is in closed state. Reference: RFC 4960/2960, section 9.2 SUT: Client or Server
SCTP_Loopback_DM_O_4_6_3	Ensure that the IUT on receipt of a SHUTDOWN message in Shutdown Sent state,
	sends a SHTUDOWN-ACK message and restarts T2-Shutdown timer. data in SUT such that terminate primitve is received from ULP to terminate the association. Arrange data at the tester such that SHUTDOWN message is sent to SUT. SUT: Client or Server
SCTP_Loopback_DM_O_4_7_2	Ensure that the IUT on receipt of a SHUTDOWN-ACK message, in Established
	state, discards the message or sends an ABORT. Arrange the data at the tester such that SHUTDOWN-ack message is sent to SUT with correct verification tag. SUT: Client or Server
SCTP_Loopback_DM_O_4_7_3	Ensure that the IUT on receipt of a SHUTDOWN-ACK message in SHUTDOWN-ACK
	sent state, send a SHUTDOWN-COMPLETE message and closes the association. data at the tester such that SHUTDOWN message is sent to SUT. Also, SHUTDOWN-ACK message is sent to SUT after receiving SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Loopback_DM_O_4_8	Ensure that the IUT on receipt of a COOKIE-ECHO message in Established
	state, discards the message and current state is not disturbed. data at the tester such that COOKIE-ECHO message with invalid Message Authentication Code (MAC) is sent to SUT. SUT: Client or Server
SCTP_Loopback_DM_O_4_10	Ensure that the IUT on receipt of a data message in Shutdown-Ack sent state,
	discards the message and may send an ABORT. data at the tester such that SHUTDOWN message is sent to SUT. Also, DATA message is sent from tester to SUT. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_FH
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_FH/ SCTP_Loopback_FH_V
SCTP_Loopback_FH_V_5_2	Ensure that the IUT on receipt of a HEARTBEAT message, sends a HEARTBEAT-ACK
	message with the information carried in the HEARTBEAT message. data at the tester such that HEARTBEAT message is sent to the SUT. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_FH/ SCTP_Loopback_FH_I
SCTP_Loopback_FH_I_5_1_1	Ensure that the IUT when total number of consecutive retransmissions
	to a peer exceeds the Association.Max.Retrans, closes the association and may send an ABORT. data at the tester such that no SACK is sent in response to DATA received from SUT. SUT: Client or Server
SCTP_Loopback_FH_I_5_1_2	Ensure that the IUT on receipt of a SACK from the tester, for a DATA which
	has been retransmitted, resets the counter which counts the total retransmission to an endpoint. data at the tester such that SACK is sent in response to DATA received from SUT only when the DATA has been retransmitted for two to three times. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_FH/ SCTP_Loopback_FH_O
SCTP_Loopback_FH_O_5_3_1	Ensure that the IUT on receipt of a DATA message, from a transport address
	corresponding to which there is no association, sends an ABORT message. data at the tester such that DATA is sent to the SUT. SUT: Client or Server
SCTP_Loopback_FH_O_5_3_2	Ensure that the IUT on receipt of an ABORT message from a transport address
	corresponding to which there is no association, discards the message. data at the tester such that ABORT is sent to the SUT. SUT: Client or Server
SCTP_Loopback_FH_O_5_3_3	Ensure that the IUT on receipt of a SHUTDOWN-ACK message from a transport
	address corresponding to which there is no association, sends a SHUTDOWN COMPLETE message with T_Bit set. data at the tester such that SHTUDOWN-ACK is sent to the SUT. SUT: Client or Server
SCTP_Loopback_FH_O_5_3_4	Ensure that the IUT on receipt of an SHUTDOWN COMPLETE message from a
	transport address corresponding to which there is no association, discards the message. data at the tester such that SHUTDOWN COMPLETE is sent to the SUT. SUT: Client or Server
SCTP_Loopback_FH_O_5_3_5	Ensure that the IUT on receipt of a COOKIE ECHO message from a
	a non-unicast address where there is no association between them, discards the message. data at the tester such that COOKIE ECHO is sent to the SUT with non unicast source address. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_E
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_E/ SCTP_Loopback_E_O
SCTP_Loopback_E_O_6_2	Ensure that the IUT on receipt of ERROR message with cause Stale
	Cookie Error in state other than Cookie Echoed state, discards the message and association is not disturbed. Arrange the data at the tester such that ERROR message with cause stale cookie error is sent. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_E/ SCTP_Loopback_E_I
SCTP_Loopback_E_I_6_3	Ensure that the IUT on receipt of DATA message to a non-existing
	stream, sends an ERROR message with cause Invalid Stream Identifier or aborts the association. Arrange the data at the tester such that a DATA message is sent to SUT on a stream which is not existing for the association. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_BDC
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_V
SCTP_Loopback_BDC_V_7_6	Ensure that the IUT on receipt of SHUTDOWN chunk
	bundled with a SACK, accepts the packet and responds with a SHUTDOWN-ACK. Arrange the data at the tester such that DATA chunks are bundled with COOKIE-ACK with COOKIE-ACK as the first chunk. SUT: Client or Server
SCTP_Loopback_BDC_V_7_7	Ensure that the IUT on receipt of SACK bundled
	with DATA chunks accepts the packet and responds with a SACK for the received DATA chunks. Arrange the data at the tester such that SACK bundled with DATA chunks is sent to SUT. SUT: Client or Server
SCTP_Loopback_BDC_V_7_8_discard	Ensure that the IUT on receipt of a SHUTDOWN-ACK
	bundled with DATA chunks discards the packet and remains in Shutdown sent state or sends an ABORT or accepts the SHUTDOWN-ACK but ignores the DATA chunks, which would mean that the IUT has to send a SHUTDOWN-COMPLETE. and SUT is in SHUTDOWN-SENT state. Arrange the data at the tester such that DATA is bundled with SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Loopback_BDC_V_7_8_abort	Ensure that the IUT on receipt of a SHUTDOWN-ACK
	bundled with DATA chunks discards the packet and remains in Shutdown sent state or sends an ABORT or accepts the SHUTDOWN-ACK but ignores the DATA chunks, which would mean that the IUT has to send a SHUTDOWN-COMPLETE. and SUT is in SHUTDOWN-SENT state. Arrange the data at the tester such that DATA is bundled with SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Loopback_BDC_V_7_8_ignore	Ensure that the IUT on receipt of a SHUTDOWN-ACK
	bundled with DATA chunks discards the packet and remains in Shutdown sent state or sends an ABORT or accepts the SHUTDOWN-ACK but ignores the DATA chunks, which would mean that the IUT has to send a SHUTDOWN-COMPLETE. and SUT is in SHUTDOWN-SENT state. Arrange the data at the tester such that DATA is bundled with SHUTDOWN-ACK message. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_BDC/ SCTP_Loopback_BDC_I
SCTP_Loopback_BDC_I_7_3_shutdown_ack	Ensure that the IUT, on receipt of any DATA chunks bundled with
	SHUTDOWN-COMPLETE chunk discards this packet and remains in SHUTDOWN-ACK sent state or sends an ABORT or accepts the SHUTDOWN-COMPLETE but ignores the DATA chunks. SUT is in SHUTDOWN-ACK sent state. Arrange the data at the tester such that DATA chunks are multiplexed with SHUTDOWN COMPLETE chunk with SHUTDOWN-COMPLETE as the first chunk. SUT: Client or Server
SCTP_Loopback_BDC_I_7_3_abort	Ensure that the IUT, on receipt of any DATA chunks bundled with
	SHUTDOWN-COMPLETE chunk discards this packet and remains in SHUTDOWN-ACK sent state or sends an ABORT or accepts the SHUTDOWN-COMPLETE but ignores the DATA chunks. SUT is in SHUTDOWN-ACK sent state. Arrange the data at the tester such that DATA chunks are multiplexed with SHUTDOWN COMPLETE chunk with SHUTDOWN-COMPLETE as the first chunk. SUT: Client or Server
SCTP_Loopback_BDC_I_7_3_ignore	Ensure that the IUT, on receipt of any DATA chunks bundled with
	SHUTDOWN-COMPLETE chunk discards this packet and remains in SHUTDOWN-ACK sent state or sends an ABORT or accepts the SHUTDOWN-COMPLETE but ignores the DATA chunks. SUT is in SHUTDOWN-ACK sent state. Arrange the data at the tester such that DATA chunks are multiplexed with SHUTDOWN COMPLETE chunk with SHUTDOWN-COMPLETE as the first chunk. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_D
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_D/ SCTP_Loopback_D_V
SCTP_Loopback_D_V_8_1	Ensure that the IUT is able to send Unsegmented user message, if resolving
	SCTP packet is less than or equal to MTU size. the data from user part such that size of the resolving SCTP packet is less than or equal to MTU size and smaller than the maximum supported size of user data. SUT: Client or Server
SCTP_Loopback_D_V_8_2	Ensure that the IUT is able to perform data segmentation and transmission
	the large size data from user part such that size exceeds MTU. When updating MTU_size, also updated TSPX_xUA_Data_frag1 and TSPX_xUA_Data_frag2. SUT: Client or Server
SCTP_Loopback_D_V_8_3	Ensure that the IUT is able to receive segmented data
	the segmented data such that SUT receives first, middle and end piece of segmented data. When updating MTU_size, also updated TSPX_xUA_Data_frag1 and TSPX_xUA_Data_frag2. SUT: Client or Server
SCTP_Loopback_D_V_8_4	Ensure that the IUT on receipt of a SACK cancels the timer, T3-rtx and
	does not increase it. the data at the tester such that SACK is sent in response of DATA message. SUT: Client or Server
SCTP_Loopback_D_V_8_9	Ensure that the IUT, before it send new DATA chunks, first transmits any
	outstanding DATA chunks, which are marked for retransmission. the data at the tester such that tester ignores TSN3 and sends SACK with gap in DATA. SUT: Client or Server
SCTP_Loopback_D_V_8_10	Ensure that the IUT, if it sends DATA to a multihomed endpoint on one
	address and receives a SACK from the alternate address in that host, it accepts the SACK. such that on reception of a packet containing a DATA chunk, the packet containing the corresponding SACK chunk is sent with a source address different from the destination address of the receive packet containing the DATA chunk. SUT: Client or Server
SCTP_Loopback_D_V_8_13	Ensure that the IUT can receive DATA equal to maximum User Data size
	defined by the upper layer. the data at the tester such that DATA chunk with size of data equal to the maximum user data size of the SUT is sent to SUT. SUT: Client or Server
SCTP_Loopback_D_V_8_14	Ensure that the IUT can send DATA equal to maximum User Data size defined
	by the upper layer. the data from user part such that size is equal to the maximum User Data size defined by the upper layer. SUT: Client or Server
SCTP_Loopback_D_V_8_15	Ensure that the IUT on receipt of DATA larger than own User Data size,
	send an ABORT with cause "Out of Resources." the data at the tester such that DATA chunk with size of data larger than user data size of the SUT is sent to SUT SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_D/ SCTP_Loopback_D_I
SCTP_Loopback_D_I_8_5	Ensure that the IUT after expiry of the timer, T3-rtx, sends the DATA
	message again. the data at the tester such that no SACK is sent in response of DATA message. SUT: Client or Server
SCTP_Loopback_D_I_8_11	Ensure that the IUT on receipt of a DATA chunk with no user data, sends an
	ABORT with cause "No User Data" the data at the tester such that DATA chunk with no user data is sent to SUT. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_D/ SCTP_Loopback_D_O
SCTP_Loopback_D_O_8_6	Ensure that the IUT on receipt of duplicate DATA chunks should report this
	in a SACK and number of duplicate TSN count should be reset once reported in SACK. the data at the tester such that it will send duplicate DATA to SUT. SUT: Client or Server
SCTP_Loopback_D_O_8_7	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit more than one DATA. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. SUT: Client or Server
SCTP_Loopback_D_O_8_8	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit DATA, until it receives a SACK, where the rwnd indicates that the peer has buffer space again. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. Data should be in large size so it will be transmitted in segments. SUT: Client or Server
SCTP_Loopback_D_O_8_8_M2UA	Ensure that the IUT, if its peers rwnd indicates that the peer has no
	buffer space, does not transmit DATA, until it receives a SACK, where the rwnd indicates that the peer has buffer space again. the data at the tester such that rwnd=0 is sent in SACK in response to DATA message. Data should be in large size so it will be transmitted in segments. SUT: Client or Server
SCTP_Loopback_D_O_8_12	Ensure that the IUT on receipt of a SACK that contains Cumulative TSN
	field less than the current Cumulative TSN Ack point, discards the SACK. the data at the tester such that SACK chunk with cumulative TSN less than the cumulative TSN ack point of SUT is sent to SUT. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_A
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_A/ SCTP_Loopback_A_V
SCTP_Loopback_A_V_9_1	Ensure that the IUT send a SACK for the first DATA chunk it receives
	immediately. the data such that tester sends the first DATA and wait for SACK. SUT: Client or Server
SCTP_Loopback_A_V_9_2	Ensure that the IUT can acknowledge the reception of multiple DATA
	chunks. the Tester such that it sends multiple DATA chunks bundled in on SCTP packet. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_A/ SCTP_Loopback_A_O
SCTP_Loopback_A_O_9_3	Ensure that the IUT, if it detects a gap in the received data chunk
	sequence, sends a SACK immediately where it reports the missing TSN in the GAP ACK block. the data such that SUT receive gap in DATA. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_M
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_M/ SCTP_Loopback_M_I
SCTP_Loopback_M_I_10_1	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 11, sends an ERROR with cause "Unrecognized Chunk type" and a SACK for the DATA chunk the Tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 11. SUT: Client or Server
SCTP_Loopback_M_I_10_2	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 00, discards this SCTP packet and does not process the DATA chunk. the data at the tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 00. SUT: Client or Server
SCTP_Loopback_M_I_10_3	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 01, discards this SCTP packet and does not process the DATA chunk. Additionally it has to send an ERROR with cause "Unrecognized Chunk Type" the data at the tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 01. SUT: Client or Server
SCTP_Loopback_M_I_10_4	Ensure that the IUT on receipt of an unrecognized chunk type with
	highest order 2 bits set to 10, discards this chunk and sends a SACK for the DATA chunk. the Tester such that a datagram with reserved chunk type is sent to IUT bundled with DATA chunk and higher two bits are set to 10. SUT: Client or Server
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_RT
SCTP_Loopback_Tests/ SCTP_Loopback_Generic_Tests/ SCTP_Loopback_RT/ SCTP_Loopback_RT_I
SCTP_Loopback_RT_