This document provides a detailed design for the data portion of the Mississippi Library Commission (MLC) public library network. The data network is based on Frame Relay technology, and would provide more functionality at a higher speed than a previously considered dial-in network could. The document is divided into 16 sections: (1) Introduction; (2) Current Environment; (3) Desired Functionality; (4) Network Overview/Cost Summary; (5) Hardware Requirements; (6) Software Requirements; (7) Network Requirements at MLC; (8) Network Topology Options; (9) Equipment at the Endpoints; (10) Personnel Issues; (11) Training Issues; (12) Network Deployment Issues; (13) Network Support Issues; (14) Security and Firewalls; (15) Next Steps; and (16) Attachments. Attachments include a library-by-library breakdown of the proposed network used to determine overall estimated costs for telecommunications lines and library equipment; public and private device IP (Internet Protocol) and WAN (wide area network) addressing charts; router configurations; MLC computer survey and results; diagrams and charts of network connectivity options with cost information; and MLC CD-ROM tower specifications. (SWC)