Critical Assessment of Association Admission Manage Methods in ATM Networks

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Executive Summary

CAC establishes, modifies and terminates virtual ath/channel connections. More specifically, it is responsible for high-layer signaling protocols, signaling ATM Adaptation Layer (AAL) functions to interpret or generate signaling cells, interface with a signaling network, negotiation of traffic contracts with users requesting new VPCs/VCCs, renegotiation with users to change established VPCs/VCCs, allocation of switch resources for VPCs/VCCs, including route selection, admission/rejection decisions for requested VPCs/VCCs, generation of UPC/NPC parameters. If the CAC is centralized, a single processing unit would receives signaling cells from the input modules, interpret them, and perform admission decisions and resource allocation decisions for all the connections in the switch.

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