1 | 2   High-Performance TCP/IP for the MVS Enterprise Server Delivers the highest performance TCP/IP stack available to make users and applications more productive Provides greater efficiency for multiprocessing applications Reduces MCS overhead Bombproof reliability Workload balancing Scalable to thousands of concurrent terminal, data transfer, or API users Enterprise Server TCP/IP The need to bring TCP/IP to an MVS or OS/390 mainframe is becoming more urgent than ever TCP/IP is the de facto standard protocol for network interoperability. As heterogeneous distributed environments evolve and Intranets, Extranets, and the Internet proliferate, the demand for TCP/IP grows. TCP/IP is now integrated with all major desktop and server operating systems. Furthermore, developers use TCP/IP-compatible APIs to write new applications or port existing ones from UNIX systems, making TCP/IP increasingly essential to MVS. Top Performance, Superior Efficiency, High Availability The efficiency of the enterprise depends on the efficiency of the network. That is why SOLVE: Stack is built to support more users concurrently with lower CPU demands than competitive products. In fact, SOLVE: Stack uses even fewer CPU resources than products that offload protocols to improve CPU consumption. This results in increased productivity today, and a longer period of use before hardware upgrades are necessary, preserving the business investment. SOLVE: Stack is native to MVS, not ported from another operating system, and is entirely resident on the host. This simplifies the data path and speeds up client/server transactions. And because the architecture for SOLVE: Stack is MVS-based, interoperation with MVS is simple, direct, fast, and highly efficient. SOLVE: Stack 5.2 includes Fault Tolerant, a unique optional SOLVE: Stack feature, which significantly enhances system availability for business-critical production environments. SOLVE: Stack-Fault Tolerant automatically and transparently reroutes user sessions if a controller, network router, or router link fails. User sessions continue without interruption or delay. The Strategic Solution Why choose Interlink for enterprise TCP/IPaccess? Because SOLVE: Stack is the standard by which mainframe based TCP/IP is judged. Interlink has over 12 years of experience in integrating TCP/IP in the enterprise. Over 1000 MVS mainframes worldwide run Interlink products. To leverage enterprise information systems to maximum advantage while supporting a growing number of network users with unprecedented speed and efficiency. SOLVE: Stack is the answer. Fast File Transfer Whether business need fast replication of data for applications, rapid bulk download to data warehouses, or efficient data upload from distributed systems during brief collection windows, high-speed file transfer to and from the mainframe is essential to productivity. SOLVE: Stack offers the fastest, most efficient FTP implementation available for file transfers to and from MVS systems. ASCII, EBCDIC, and double-byte character translation are supported, and files can be transmitted to and from MVS regardless of data structures. MVS partitioned data sets are handled as directories for interfacing with GUI-based FTP clients. SMS-managed, PDSE, multivolume, and tape data sets are supported within the MVS environment to help users manage storage resources more efficiently and reliably. High Volume Terminal Access Enterprises depend on 3270-oriented applications and new ones continue to be developed. These applications are the heart of the business, generating revenue and profits through on-line transactions, controlling inventory and distribution, and running the company. The superior efficiency of SOLVE: Stack gives thousands of users access to business applications on the mainframe over a high-performance TCP/IP network. Businesses benefit from the lower costs and simplified management of using a single network with a single protocol stack. Users gain fast response times. SOLVE: Stack supports tn3270 for Telnet terminal access, which allows tn3270 users on PCs and other systems to use 3270 mainframe applications. Remote TCP/IP users can log into SNA applications in line mode or full-screen mode, which supports both LU0 and LU2 protocols. Telnet now interfaces to standard VTAM USS definitions, allowing 3270 users to continue to use familiar logon screens. Application Compatibility With SOLVE: Stack, business can develop new client/server applications for MVS platforms, take advantage of third-party software, and continue to run existing applications. And not only will these new and existing applications run over TCP/IP, they'll run faster and more efficiently because of the inherent advantages of SOLVE: Stack. SOLVE: Stack provides APIs that enable application-to-application communications, permitting new distributed applications to interface with TCP/IP. SOLVE: Stack provides run-time compatibility with IBM and ISV applications built suing UNIX System Services, IUCV, TLI, or HPNS socket APIs. And it features compatibility with IBM FTP, which means that scripts, applications, and files containing IBM FTP syntax can be used without modification.