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-
- CPCS Design
- ===========
-
-SAP_CPCS Interface
-------------------
-This is the stack SAP interface between an AAL CPCS provider and an AAL CPCS
-user. The stack commands defined for this interface are modeled after the
-AAL3/4 and AAL5 protocol specification primitives CPCS-xxx. See the protocol
-specification documents referenced below for full descriptions of the CPCS
-interface.
-
-
-o The following stack commands are sent from a CPCS user to the CPCS provider:
-
-Stack Command: CPCS_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: Not used.
-Argument 2: Not used.
-
-
-Stack Command: CPCS_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: CPCS_UNITDATA_INV
-Description: Request that an SDU be sent to the remote AAL user.
-Argument 1: Pointer to an mbuf chain containing the user SDU.
- (struct mbuf *)
-Argument 2: Not used.
-
-
-Stack Command: CPCS_UABORT_INV
-Description: Not supported.
-Argument 1: N/A
-Argument 2: N/A
-
-
-o The following stack commands are sent from the CPCS provider to a CPCS user:
-
-Stack Command: CPCS_UNITDATA_SIG
-Description: Indication that an SDU has been received from the remote AAL
- user.
-Argument 1: Pointer to an mbuf chain containing the peer's SDU.
- (struct mbuf *)
-Argument 2: Not used.
-
-
-Stack Command: CPCS_UABORT_SIG
-Description: Not supported.
-Argument 1: N/A
-Argument 2: N/A
-
-
-Stack Command: CPCS_PABORT_SIG
-Description: Not supported.
-Argument 1: N/A
-Argument 2: N/A
-
-
-
-Protocol Specifications
------------------------
-See I.363.
-
-
-
-Implementation Limitations
---------------------------
-o The CPCS-LP, CPCS-CI and CPCS-UU parameters are not supported.
-
-o The Streaming Mode service is not supported.
-
-o The Abort service is not supported.
-
-
- @(#) $FreeBSD$
-