1820df7a2d
Host ATM Research Platform (HARP), Network Computing Services, Inc. This software was developed with the support of the Defense Advanced Research Projects Agency (DARPA).
85 lines
2.0 KiB
Plaintext
85 lines
2.0 KiB
Plaintext
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CPCS Design
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===========
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SAP_CPCS Interface
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------------------
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This is the stack SAP interface between an AAL CPCS provider and an AAL CPCS
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user. The stack commands defined for this interface are modeled after the
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AAL3/4 and AAL5 protocol specification primitives CPCS-xxx. See the protocol
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specification documents referenced below for full descriptions of the CPCS
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interface.
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o The following stack commands are sent from a CPCS user to the CPCS provider:
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Stack Command: CPCS_INIT
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Description: Initialize a SAP instance. This should be the first stack
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command issued across the SAP instance after the service stack
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has been successfully instantiated.
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Argument 1: Not used.
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Argument 2: Not used.
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Stack Command: CPCS_TERM
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Description: Terminate a SAP instance. This must be the last stack command
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issued across the SAP instance. The stack instance will be
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deleted upon completion of this command.
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Argument 1: Not used.
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Argument 2: Not used.
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Stack Command: CPCS_UNITDATA_INV
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Description: Request that an SDU be sent to the remote AAL user.
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Argument 1: Pointer to an mbuf chain containing the user SDU.
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(struct mbuf *)
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Argument 2: Not used.
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Stack Command: CPCS_UABORT_INV
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Description: Not supported.
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Argument 1: N/A
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Argument 2: N/A
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o The following stack commands are sent from the CPCS provider to a CPCS user:
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Stack Command: CPCS_UNITDATA_SIG
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Description: Indication that an SDU has been received from the remote AAL
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user.
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Argument 1: Pointer to an mbuf chain containing the peer's SDU.
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(struct mbuf *)
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Argument 2: Not used.
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Stack Command: CPCS_UABORT_SIG
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Description: Not supported.
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Argument 1: N/A
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Argument 2: N/A
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Stack Command: CPCS_PABORT_SIG
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Description: Not supported.
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Argument 1: N/A
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Argument 2: N/A
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Protocol Specifications
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-----------------------
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See I.363.
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Implementation Limitations
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--------------------------
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o The CPCS-LP, CPCS-CI and CPCS-UU parameters are not supported.
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o The Streaming Mode service is not supported.
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o The Abort service is not supported.
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@(#) $Id: cpcs.design,v 1.1.1.1 1996/12/04 20:48:14 mks Exp $
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