|  | BEA eLink™ for Mainframe SNA | Developer Center
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| This Developer Center provides details about BEA eLink™ for Mainframe SNA 3.0, a multi-domain connectivity product which enables client/server communications between OS390/CICS programs and WebLogic Enterprise or TUXEDO applications via a Systems Network Architecture (SNA) network. Learn what's new in this release. ### Topics About This Developer Center Introducing the BEA eLink SNA System Understanding How the Software Works Configuring the System Verifying the Software Administering the Application Domain Programming Considerations Reference Pages (formerly called man pages) ATMI to CPI-C Function Mapping CPI-C Parameters and Values Error Messages Sample VTAM Configurations Glossary ### Other Presentation Formats All topics in an online book style (uses frames) PDF version of the BEA elink SNA topics (opens a new browser window) Use Adobe Acrobat Reader to access the PDF file. Get Acrobat Reader from the Adobe Web site (opens in new browser window). Copyright © 1999 BEA Systems, Inc. All Rights Reserved. Required browser: Netscape 4.0 or higher, or Microsoft Internet Explorer 4.0 or higher. Last update: April 1999