Computer Sciences Corporation, P.O. Box 240005, Huntsville, AL 35824-6405

D -- ATM SERVICE SOL ATD-124-MKC-96/0009 POC Marla K. Carter, 205-544-8953 Computer Sciences Corporation, as the NASA Mission Support Contractor for Marshall Space Flight Center, is responsible for the development, operation and maintenance of the Program Support Communications Network (PSCN). The PSCN presently interconnects all NASA centers and NASA Headquarters with a DS-3 level dedicated network based on TDM technology. It is NASA's intent to migrate the network backbone to ATM technology where such a move proves to be cost effective. The migration will be accomplished in phases, with initial implementation at three NASA centers; Ames Research Center, California, Langley Research Center, Virginia, and Lewis Research Center, Ohio. To support the planned migration of the PSCN backbone to ATM technology, it is CSC's intent to procure ATM service from a commercial vendor with a proven experience base of telecommunications service delivery at very high levels of throughput, availability, reliability and maintainability. A Request for Proposals will be issued on or about January 20, 1996, for an integrated Asynchronous Transfer Mode (ATM) cell-relay, standards based communications service to provide Wide Area Network and intercenter service for NASA. The ATM Service is to be provided via the vendor's fiber-optic network, which must support service delivery to sites throughout the United States, including Alaska and Hawaii. The ATM Service shall provide multiple access rates up to OC-3 (155.52 Mbps) initially and, shall be capable of provisioning both symmetrical and asymmetrical, bi-directional, Virtual Path Connections (VPCs) and Virtual Channel Connections (VCCs) between buyer specified locations. Interested parties have 15 days from publication date of this synopsis to request a copy of the Request for Proposal. Oral communications are not aceptable in response to this notice. Requests for information should be directed in writing or by fax 205-544-5125 to the attention of James F. Mitchell or Marla K. Carter. All requests should indicate business size. (0011)

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