SAS/C Usage Notes

F RUNTCP,TCP SNAP ALL

Obtaining a TCPEEP

Read the Cisco IOS for S/390 System Management for information to help you set up and submit your trace address space and submit the TCPEEP TSO command.

Obtaining an SVC Dump

Read the IBM document MVS/ESA System Commands Reference Summary for the syntax of the required DUMP commands. In particular, include all jobs involved in the problem using the JOBNAME parameter of the DUMP command.

Obtaining JCL Output

Copy the JCL output of RUNTCP to a file using the following procedure:

If you are using JES2/SDSF, type XDC beside the job listed in SDSF and follow the panel instructions. This will let you copy to a data set of your choice. Generally, for every thousand lines of job output you need three 3390 tracks.

If you are using JES3, you may use FLASHER or a similar product to copy the RUNTCP output to a data set in a similar fashion.

SAS/C Usage Notes

You must use the SAS 6.0 compiler, header files, object files, and runtime libraries to COMPILE and LINK using the Cisco IOS for S/390 release 2.0 socket library

You can run a down-level (SAS 5.5) c program against Cisco IOS for S/390 release 2.0, and it can be compiled and linked using the Cisco IOS for S/390 release 1.0 (or lower) socket library. However, it must be run using the SAS 5.5 runtime library. This program can then run over the Cisco IOS for S/390 release 2.0 stack.

Mixing any SAS 6.0 modules/headers with SAS 5.5 modules/headers will cause problems.

Mixing any Cisco IOS for S/390 release 2.0 socket modules/headers with Cisco IOS for S/390 release 1.0 socket modules/headers will cause problems.

Mixing runtime modules between releases will cause problems.

In addition, in SAS 6.0, LSCNCOM is always dynamically loaded. If linked with the application program in 6.0, LSCNCOM will cause ABENDs.

Converting from Cisco IOS for S/390 Release 1.0 to Cisco IOS for S/390 Release 2.0

This section provides information on how to convert your Cisco IOS for S/390 release 1.0 configuration files to the configuration files used for Cisco IOS for S/390 release 2.0. There is also a discussion on the use of the LOGGING statement.

Several diagrams are given to show the parameter changes. In the diagrams, parameters not available in Cisco IOS for S/390 release 2.0 are shown crossed out (OLDPARM). New parameters are shown in boldface type (BOLD).

34Cisco IOS for S/390 Release 2.0 Release Notes

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Cisco Systems S/390 manual SAS/C Usage Notes, Obtaining a Tcpeep, Obtaining an SVC Dump, Obtaining JCL Output

S/390 specifications

Cisco Systems S/390, also known as IBM's S/390 architecture, is a revolutionary mainframe computing solution that has significantly impacted enterprise computing since its introduction. Though primarily associated with IBM, its integration with Cisco Systems technologies has fostered enhanced networking capabilities, creating a robust platform for organizations to leverage.

One of the most notable features of the S/390 architecture is its scalability. The system is designed to manage workloads efficiently, enabling organizations to scale their operations seamlessly as their requirements grow. This architecture supports an extensive range of applications, from transaction processing to complex data analysis, making it suitable for diverse industries.

The S/390 systems are known for their reliability and resilience. With advanced error detection and correction mechanisms, the architecture minimizes downtime, ensuring that mission-critical applications remain operational. The mainframe's design accommodates redundancy and fault tolerance, reinforcing its reputation as a dependable computing solution.

Moreover, security is a core characteristic of the S/390 infrastructure. It incorporates various security features, such as encryption and robust access control mechanisms, to safeguard sensitive data against unauthorized access and cyber threats. This level of security is particularly critical for industries such as finance, healthcare, and government, where data protection is paramount.

The integration of Cisco networking technologies with the S/390 architecture brings enhanced connectivity and streamlined communication capabilities. Cisco’s advanced routing, switching, and security solutions bolster the mainframe's communication prowess, enabling organizations to create seamless, high-performance networks. This ensures that data flows efficiently between the mainframe and other networked devices.

Additionally, S/390 supports an array of middleware solutions, facilitating better interoperability with modern applications and cloud services. Organizations can take advantage of this flexibility to leverage existing investments in technology while embracing innovative solutions.

In summary, Cisco Systems S/390 embodies a potent combination of scalability, reliability, security, and advanced networking features. Its architecture serves as a cornerstone for enterprise computing, allowing organizations to meet their evolving business needs while maintaining high-performance standards. As businesses increasingly rely on data-driven decision-making, S/390 remains a critical asset for organizations striving for efficiency and innovation in their operations.