Enhanced APIs

Enhanced APIs

OS/390 OpenEdition (UNIX System Services) asynchronous I/O (required for DB2 V5 TCP/IP support) and SRB mode.

Multiple BIND support for server applications (parallel processing for FTP, Telnet, and vendor applications).

Enhanced TLI interface—data spaces, cross memory, SRB mode, etc.

SAS 6.0 support.

Other Enhancements

Year 2000 support.

FTP server support for IP address as RACROUTE TERMID—allows security rules to deny FTP access unless permitted by IP address.

Cisco router-based queuing—IP Type of Service (TOS) can be set for applications to better interface to Cisco queuing mechanisms like Weighted Fair Queuing (WFQ).

Product Changes

The parameter WRELIM has been removed from the UDP and TCP statements. Buffering is handled automatically in Cisco IOS for S/390 release 2.0.

Some of the control blocks for the POOL command have changed. The EPCB control block is now called the SEPM, the SRE is now called the SAW, and the ARCB, TUCB, and TSQB control blocks have been combined into the ATCB. The 256B pool no longer exists.

The message ACC210I Internet Protocol Task Started no longer displays to indicate that startup has completed. A message will display indicating startup completion in Cisco IOS for S/390 release 2.0. The message number will vary, depending on the device you are using; the message text will be

Media media_name is now operational with one or more active interfaces.

Initialization and termination messages now appear in mixed case. This may impact some automated operations packages that search for messages to invoke some action. You should review these messages and take appropriate action.

Some parameters for Cisco IOS for S/390 release 2.0 have been renamed to improve readability, but aliases have been added for the names used in Version release 1.0. The following names and aliases are available for Cisco IOS for S/390 release 2.0:

Table 1

Parameter Aliases

 

 

 

 

 

 

Parameters

Aliases

 

 

 

 

 

 

MAXSNDBUF

MAXSENDBUF

MAXLSEND

MAXLSND

 

 

 

 

MAXRCVBUF

MAXRECVBUF

MAXLRECV

MAXLRCV

 

 

 

 

DEFQSEND

DEFQSND

 

 

 

 

 

 

DEFQRECV

DEFQRCV

 

 

 

 

 

 

DEFSNDBUF

DEFSENDBUF

DEFLSEND

DEFLSND

 

 

 

 

DEFRCVBUF

DEFRECVBUF

DEFLRECV

DEFLRCV

 

 

 

 

MAXTSEND

MAXTSND

MAXLTSEND

MAXLTSND

 

 

 

 

MAXTRECV

MAXTRCV

MAXLTRECV

MAXLTRCV

 

 

 

 

Cisco IOS for S/390 Release 2.0 Release Notes 3

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Cisco Systems S/390 manual Product Changes, Enhanced APIs, Other Enhancements, Parameter Aliases Parameters

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.