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diff --git a/share/examples/atm/sscf-design.txt b/share/examples/atm/sscf-design.txt new file mode 100644 index 000000000000..a6e3f9ef1bac --- /dev/null +++ b/share/examples/atm/sscf-design.txt @@ -0,0 +1,129 @@ + + SSCF UNI Design + =============== + +SAP_SSCF_UNI Interface +---------------------- +This is the stack SAP interface between the UNI signalling layer (eg. Q.2931) +and the SSCF module. The stack commands defined for this interface are modeled +after the SSCF protocol specification primitives AAL-xxx. See the protocol +specification documents referenced below for full descriptions of the SSCF UNI +interface presented to the signalling user. + + +o The following stack commands are sent from the signalling module to SSCF: + +Stack Command: SSCF_UNI_INIT +Description: Initialize a SAP instance. This should be the first stack + command issued across the SAP instance after the service stack + has been successfully instantiated. +Argument 1: Specifies the UNI version to be used for this stack instance. + (enum uni_vers) +Argument 2: Not used. + + +Stack Command: SSCF_UNI_TERM +Description: Terminate a SAP instance. This must be the last stack command + issued across the SAP instance. The stack instance will be + deleted upon completion of this command. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_ESTABLISH_REQ +Description: Request the establishment of an assured SAAL connection to the + SAAL peer entity. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_RELEASE_REQ +Description: Request the termination of an assured SAAL connection to the + SAAL peer entity. +Argument 1: Specifies whether future session establishment indications from + the SAAL peer should be processed. Valid values are + SSCF_UNI_ESTIND_YES or SSCF_UNI_ESTIND_NO. (int) + Note that this is a local implementation parameter only. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_DATA_REQ +Description: Request that an assured SDU be sent to the SAAL peer. +Argument 1: Pointer to an mbuf chain containing the user SDU. + (struct mbuf *) +Argument 2: Not used. + + +Stack Command: SSCF_UNI_UNITDATA_REQ +Description: Request that an unacknowledged SDU be sent to the SAAL peer. +Argument 1: Pointer to an mbuf chain containing the user SDU. + (struct mbuf *) +Argument 2: Not used. + + +o The following stack commands are sent from SSCF to the signalling module: + +Stack Command: SSCF_UNI_ESTABLISH_IND +Description: Indication that an assured SAAL connection has been established + by the SAAL peer entity. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_ESTABLISH_CNF +Description: Confirmation of an assured SAAL connection establishment, + previously requested via an SSCF_UNI_ESTABLISH_REQ command. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_RELEASE_IND +Description: Indication that an assured SAAL connection has been terminated + by the SAAL peer entity. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_RELEASE_CNF +Description: Confirmation of an assured SAAL connection termination, + previously requested via an SSCF_UNI_RELEASE_REQ command. +Argument 1: Not used. +Argument 2: Not used. + + +Stack Command: SSCF_UNI_DATA_IND +Description: Indication that an assured SDU has been received from the + SAAL peer. +Argument 1: Pointer to an mbuf chain containing the peer's SDU. + (struct mbuf *) +Argument 2: Not used. + + +Stack Command: SSCF_UNI_UNITDATA_IND +Description: Indication that an unacknowledged SDU has been received from + the SAAL peer. +Argument 1: Pointer to an mbuf chain containing the peer's SDU. + (struct mbuf *) +Argument 2: Not used. + + + +Protocol Specifications +----------------------- +For UNI_VERS_3_0, see Q.SAAL2. +For UNI_VERS_3_1, see Q.2130. + + + +Implementation Limitations +-------------------------- +o The Parameter Data parameter is not supported for the following primitives: + AAL-ESTABLISH request + AAL-ESTABLISH indication + AAL-ESTABLISH confirm + AAL-RELEASE request + AAL-RELEASE indication + + + @(#) $Id: sscf.design,v 1.1.1.1 1996/12/04 20:48:17 mks Exp $ + |