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IBM S/390 Open Systems Adapter 2 Enhancements for VSE/ESA and ATM

Hardware Announcement
October 7, 1997
Announcement Letter Number: 197-295


Table of Contents:



At a Glance

The OSA-2 and the OSA/SF now offer:

  • TCP/IP configuration support for VSE/ESA
    • You'll now have low-cost connectivity for TCP/IP applications as well as ACF/VTAM applications
The following is available for the ATM OSA-2 features in the OS/390, MVS/ESA, VM/ESA, and VSE/ESA environments:
  • REXX Execs to configure a feature
    • An OS/2 workstation is no longer required to configure any of the OSA-2 features.
  • SNA/APPN (ACF/VTAM) enhanced connectivity with support for additional physical units (PUs) for ATM LANE
    • Fewer ATM OSA-2 features are required to support your end users. You can increase your capacity, without increasing your costs.
-----------------------------------------
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Overview

We are pleased to expand the support for the S/390 (R) Open Systems Adapter 2* and the S/390 Open Systems Adapter Support Facility** to include TCP/IP configuration support for VSE/ESA (TM) Version 2 Release 2.1 or above. You'll now be able to configure the OSA-2 Ethernet, Token-Ring, FDDI, or ATM features to communicate with TCP/IP applications. Previously, this support was only available for ACF/VTAM (R) applications.

We are also offering the following for OS/390 (TM), MVS/ESA (TM), VM/ESA (R), and VSE/ESA:

  • The flexibility to configure the ATM OSA-2 features without the need for an OS/2 (R) workstation

  • Enhanced connectivity for SNA/APPN (R) applications when using an ATM OSA-2 feature configured for ATM Forum-compliant LAN Emulation (ATM LANE).
    • You can configure more physical units (for example, workstations) per emulated port reducing the cost of connectivity.
*     OSA-2
**    OSA/SF



Intended Customers

The S/390 Open Systems Adapter 2 is for enterprises:

  • Requiring industry-standard interfaces

  • Experiencing growth of their networks

  • Conducting eBusiness

  • Desiring direct connectivity to S/390 Servers in a campus LAN environment

  • Wishing to reduce the total cost of connectivity



Key Prerequisites

Hardware Requirements

  • S/390 Parallel Enterprise Server (TM) -- G3 and G4

  • S/390 Application StarterPak 3000

  • S/390 Multiprise (TM) 2000 Server

  • S/390 Parallel Enterprise Server (TM) 9672 R2 and R3 Models
Note: The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.

Software Requirements: Depending upon the OSA-2 enhancement, the appropriate release of one or more of the following may be required:

  • OS/390, MVS/ESA, VM/ESA, or VSE/ESA

  • ACF/VTAM (R) or TCP/IP
Note: PTFs (Program Temporary Fixes) are required.



Planned Availability Date

October 31, 1997

------------------------------

This announcement is provided for your information only. For additional information, contact your IBM representative, call 800-IBM-4YOU, or visit the IBM home page at: http://www.ibm.com



DESCRIPTION



TCP/IP Configuration Support for VSE/ESA

We are pleased to expand the support of the S/390 Open Systems Adapter Support Facility (OSA/SF) to allow you to configure an OSA-2 feature to communicate with Transmission Control Protocol/Internet Protocol (TCP/IP) applications. This support is available for VSE/ESA Version 2 Release 2.1 and above. Support for OSA/SF in the Advanced Communications Function for Virtual Telecommunication Access Method (ACF/VTAM) for VSE/ESA environment became generally available April 25, 1997. You'll now also have cost-effective connectivity for end user access to TCP/IP applications as well as ACF/VTAM applications.

The S/390 Open Systems Adapter 2 (OSA-2) is an integrated S/390 hardware feature that incorporates the functions of a channel adapter, a control unit, and local area network (LAN) interfaces into an integrated S/390 hardware feature providing industry standard connectivity to LANs simplifying enterprise networks, and reducing the number of physical boxes that must be managed.

In the VSE/ESA environment end users are supported via Ethernet, Token-Ring and Fiber Distributed Data Interface (FDDI) LANs as well as Asynchronous Transfer Mode (ATM) networks via ATM Forum-compliant LAN Emulation for Ethernet and Token-Ring LANs. You can exploit low-speed and high-speed industry-standard technologies.

In TCP/IP environments, in addition to ACF/VTAM environments, you have full-duplex/switched support for the Ethernet/Token-Ring (ENTR) OSA-2 feature allowing attachment to LAN switches giving you an effective technique to avoid some of the costs associated with network growth. It is possible to solve network capacity problems with minimal disruption to the infrastructure and minimal wiring closet, building cabling, and software changes.

The OSA-2 features continue to be managed by the S/390 Open Systems Adapter Support Facility (OSA/SF), a host-based tool with a workstation-based Graphical User Interface (GUI) and a Restructured Extended Executor Language (REXX) Exec interface.

OSA/SF is available as a component of VSE Central Functions 6.1.1 in VSE/ESA Version 2 Release 2.1 or above.

The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.



ATM OSA-2 Features

The ATM OSA-2 features support ATM Forum-compliant LAN Emulation (ATM LANE) in the OS/390, MVS/ESA, VM/ESA, and VSE/ESA environments. The ATM OSA-2 features also support native ATM in the OS/390 and MVS/ESA Advanced Peer to Peer Networking (APPN) environment. In September 1997, we added support for ATM Internet Protocol (IP) Forwarding (RFC1483 -- routed encapsulation over ATM Adaptation Layer 5 -- AAL5) in the OS/390 and MVS/ESA TCP/IP environment.



Configuration Flexibility for ATM OSA-2 Features

REXX Exec Support: Currently, to configure and customize an ATM OSA-2 customers have been using the OSA/SF Graphical User Interface (GUI) on an OS/2 workstation. Now customers will be able to communicate with an ATM OSA-2 feature using a Restructured Extended Executor Language (REXX) Exec. Customers can issue the call from Time Sharing Option (TSO) using OS/390 or MVS/ESA, Conversational Monitor System (CMS) using VM/ESA, or a System Partition (SP (TM)) using VSE/ESA.

The two OSA/SF interfaces, a REXX Exec and the OSA/SF GUI, are currently available for the Ethernet, Token-Ring, and FDDI features.

This support is enabled via OSA/SF and is being made available for the OS/390, MVS/ESA, VM/ESA, and VSE/ESA environments. You have the flexibility to configure any of the OSA-2 features using the GUI on an OS/2 workstation or using REXX Execs to issue OSA/SF commands in a text format on a command line. You can also automate OSA/SF procedures using REXX Execs.

The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.



SNA/APPN Enhanced Connectivity for ATM OSA-2 Features

Increased Number of Physical Units (PUs) Supported: The design has been modified to allow up to a maximum of 2047 PUs to be defined to an ATM OSA-2 feature when configured to run ATM Forum-compliant LAN Emulation (ATM LANE) instead of the current 255 PUs per emulated port on the ATM OSA-2 feature. Recognize that an ATM OSA-2 feature supports a total of 1000 concurrent ATM connections (Switched Virtual Circuits -- SVCs or Permanent Virtual Circuits -- PVCs) of which up to 256 can be PVCs. Refer to the Technical Description ATM OS/A-2 section for further detail. Actual connectivity may vary based upon user workloads.

By increasing the number of PUs (for example, workstations) per emulated port, you will be able to reduce the number of required OSA-2 features. This reduces the total cost of connectivity and improves manageability.

This enhanced connectivity (2047 PUs per port) was made available for the OSA-2 Ethernet, Token-Ring, and FDDI features in March of this year (OS/390, MVS/ESA, and VM/ESA) and April of this year (VSE/ESA). This was an improvement over the previously announced date of June 27, 1997. Now, increased PUs are also available for the ATM OSA-2 features.

This support is enabled via OSA/SF and is being made available for the OS/390, MVS/ESA, VM/ESA, and VSE/ESA environments.

The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.

For a further explanation of these OSA-2 enhancements and the required hardware and software, refer to Planning for the S/390 Open Systems Adapter, GC23-3870.



PRODUCT POSITIONING

You now have the flexibility to configure an OSA-2 feature to support TCP/IP or SNA/APPN (ACF/VTAM) applications in the OS/390, MVS/ESA, VM/ESA and VSE/ESA environments.

The S/390 Open Systems Adapter 2 feature:

  • Helps to reduce the total cost of connectivity by permitting direct attachment of S/390 Servers to industry-standard interfaces.

  • Along with the S/390 Server becomes an even more viable enterprise server in the campus local area network (LAN) environment, providing integrated direct access to applications. This further enhances the movement from hierarchical processing to allow the S/390 Server to participate as a true peer to LAN devices.

  • Brings the strengths of the S/390 Server (security, backup/recovery, centralized access to data) to the LAN environment.

  • Expands the connectivity alternatives available. It can be directly connected to Ethernet, Token-Ring, and FDDI LANs, LAN backbones, high-speed workstations, bridges, routers, intelligent hubs, switches, and ATM networks.

  • Provides a direct, native, industry-standard connection to Ethernet, Token-Ring, and FDDI LANs, and ATM networks, simplifying enterprise networks, and reducing the number of physical boxes that must be managed.



STATEMENT OF GENERAL DIRECTION

IBM intends to address the customer need for higher speed connectivity in the Ethernet environment. We will be adding a new S/390 Open Systems Adapter 2 (OSA-2) feature, supporting 100 Megabits per second (Mbps) Ethernet (Fast Ethernet). This feature will utilize the same packaging as the current OSA-2 features, plugging directly into a standard I/O slot, making it an integral component, and enabling convenient LAN attachment.

The Fast Ethernet OSA-2 feature provides direct access from the S/390 server to high bandwidth and high capacity campus LAN backbones. It is a cost-effective solution to satisfy network performance problems.

It is expected that the Fast Ethernet OSA-2 feature will become available first half 1998.

The announcement and availability of the referenced function will be based upon IBM's business and technical judgement.



REFERENCE INFORMATION

Refer to:

  • Software Announcement 297-413, dated October 7, 1997 (VSE/ESA Version 2 Release 3)

  • Software Announcement 297-410, dated October 7, 1997 (TCP/IP for VSE/ESA Version 1 Release 3)

  • Hardware Announcement 197-194, dated September 9, 1997 (S/390 Open Systems Adapter 2 Enhancements for OS/390)

  • Software Announcement 297-231, dated June 24, 1997 (eNetwork Communications Server Enhancements for S/390 -- An Enterprise-Class Solution for Network Computing)

  • Software Announcement 297-043, dated March 11, 1997 (S/390 Open Systems Adapter 2 Enhancements -- VSE/ESA, ATM, SNA/APPN)

  • Software Announcement 296-336, dated September 10, 1996 (VM/ESA Version 2 Release 2.0 Provides Critical Year 2000 Support; this announces support for OSA/SF in the VM/ESA environment)

  • Software Announcement 296-154, dated April 29, 1996 (S/390 Open Systems Adapter Support Facility Version 1 Release 2)

  • Hardware Announcement 196-194, dated September 10, 1996 (New IBM S/390 Parallel Enterprise Server -- Generation 3; one OSA-2 feature is shipped with each G3; includes announcement of switched/full duplex support for the OSA-2 Ethernet/Token-Ring (ENTR) feature)

  • Hardware Announcement 196-193, dated September 10, 1996 (New S/390 Multiprise 2000 Servers; one OSA-2 feature is shipped with each S/390 Multiprise 2000; includes announcement of switched/full duplex support for the OSA-2 Ethernet/Token-Ring (ENTR) feature)

  • Hardware Announcement 196-101, dated April 29, 1996 (155 ATM S/390 Open Systems Adapter 2 Feature Delivers Integrated Connectivity to ATM Environments)
For additional information on all of the S/390 Open Systems Adapter 2 features and the S/390 Open Systems Adapter Support Facility, contact your IBM representative.

Trademarks

      VSE/ESA, MVS/ESA, OS/390, S/390 Parallel Enterprise Server,
      Multiprise, S/390 Parallel Enterprise Server, and SP are
      trademarks of International Business Machines Corporation in
      the United States or other countries or both.
      S/390, ACF/VTAM, VM/ESA, OS/2, APPN, and VTAM are registered
      trademarks of International Business Machines Corporation in
      the United States or other countries or both.
      Other company, product, and service names may be trademarks or
      service marks of others.



SUPPLEMENTAL INFORMATION



TECHNICAL DESCRIPTION -- ATM OSA-2

The Asynchronous Transfer Mode (ATM) OSA-2 features support ATM Forum-compliant LAN Emulation (ATM LANE) in the OS/390 (TM), MVS/ESA (TM), VM/ESA (R), and VSE/ESA (TM) environments. The ATM OSA-2 features also support native ATM in the OS/390 and MVS/ESA Advanced Peer to Peer Networking (APPN (R)) environment. In September 1997, we added support for ATM Internet Protocol (IP) Forwarding (RFC1483 -- routed encapsulation over ATM Adaptation Layer 5 -- AAL5) in the OS/390 and MVS/ESA Transmission Control Protocol/Internet Protocol (TCP/IP) environment.



Configuration Flexibility for ATM OSA-2 Features

REXX Exec Support: The S/390 (R) Open Systems Adapter Support Facility (OSA/SF) interfaces include a Restructured Extended Executor Language (REXX) Exec or the OSA/SF Graphical User Interface (GUI) on an OS/2 (R) non-dedicated workstation.

Using REXX Execs, you can automate OSA/SF procedures. You can also issue OSA/SF commands in a text format on a command line. Additionally, you can use the IBM NetView (R) program to invoke user-written REXX Execs that call the OSA/SF Application Programming Interface (API).

A REXX Exec can be issued from:

  • Time Sharing Option (TSO) User on OS/390 or MVS/ESA

  • Conversational Monitor System (CMS) User on VM/ESA

  • System Partition (SP (TM)) on VSE/ESA



SNA/APPN Enhanced Connectivity for ATM OSA-2 Features

Increased Number of Physical Units (PUs) Supported: An ATM OSA-2 feature supports a total of 1000 concurrent ATM connections; Switched Virtual Circuits -- SVCs or Permanent Virtual Circuits -- PVCs, of which up to 256 can be PVCs. When an ATM OSA-2 feature is configured to run ATM Forum-compliant LAN Emulation (ATM LANE) the following should be observed:

  • Configure no more than 1000 PUs with a distinct Medium Access Control (MAC) address to communicate with a single emulated port on an ATM OSA-2 feature at any one time when using ATM LANE (for example, no more than 1000 MAC addresses per LAN Emulation Client (LEC)).

  • Configure no more than 1000 SVCs per ATM OSA-2 feature.

  • Configure no more than 2047 PUs per ATM OSA-2 feature.



TECHNICAL INFORMATION



Specified Operating Environment

Limitations: Recognize that there will be a limit to the total number of clients that can be connected if you are using ATM LANE and are attached to an Ethernet or Token-Ring LAN via a bridge. You should not exceed a total of 1000 clients with a distinct MAC address.

If the clients are directly attached to the ATM network no more than 1000 SVCs should be established.

Refer to product publications for the hardware and software requirements for the OS/390, MVS/ESA, VM/ESA, and VSE/ESA environments. The document, Planning for the S/390 Open Systems Adapter Feature, is continuously updated and is the best source of up-to-date information. This manual identifies the specified operating environments, and the hardware and software prerequisites. This document is available from your local distribution center. Local copies are also available. Contact your IBM representative.

Hardware Requirements: The OSA-2 features are supported on the following S/390 Servers:

  • S/390 Parallel Enterprise Server (TM) -- Generation 4
    • 9672 R5 Models RA5, R15, RB5, R25, RC5, R35, R45, R55, R65, R75, R85, R95, RX5, RY5
  • S/390 Parallel Enterprise Server (TM) -- Generation 3
    • 9672 R4 Models RA4, R14, RB4, R24, RC4, R34, R44, R54, R64, R74, R84, R94, RX4, RY4
  • S/390 Application StarterPak 3000
    • 3000 A10 and A20 Models
  • S/390 Multiprise (TM) 2000 Server
    • 2003, All Models
  • S/390 Parallel Enterprise Server
    • 9672 R2 Models RA2, R12, R22, R32, R42, R52, R72
    • 9672 R3 Models R53, R63, R73, R83, RX3
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.

Software Requirements: Only the minimum program release levels are listed. Service levels and higher release levels are assumed to be supported.

One of the following is required:

  • OS/390 Release 2 or above (5645-001)

  • MVS/ESA Version 4 Release 3 JES 2 or above (5695-047)

  • MVS/ESA Version 4 Release 3 JES 3 or above (5695-048)

  • VM/ESA Version 2 Release 2.0 or above (5654-030)

  • VSE/ESA Version 2 Release 2.1 or above (5690-VSE)
One or more of the following is required:
  • TCP/IP for MVS/ESA Version 2 Release 2.1 (5735-HAL)

  • Communications Server for MVS/ESA Release 1 or above (5655-A29)

  • ACF/VTAM (R) for MVS/ESA Version 4 Release 1 or above (5695-117)
  • TCP/IP for VM/ESA Version 2 Release 3 (5735-FAL)

  • ACF/VTAM (R) for VM/ESA Version 4 Release 2.0 or above (5654-010)
  • TCP/IP for VSE/ESA Version 1 Release 3 (5686-A04)

  • ACF/VTAM for VSE/ESA Version 4 Release 2 or above (5686-065)
The new functions are offered as Program Temporary Fixes (PTFs) to OSA/SF.

The following is required:

  • The S/390 Open Systems Adapter Support Facility with Program Temporary Fixes (PTFs) as identified in each environment (OS/390, MVS/ESA, VM/ESA, and VSE/ESA).



OS/390 and MVS/ESA

OSA/SF Version 1 Release 2 is available as a non-exclusive base element of OS/390 Release 2 and above. OSA/SF runs as a started task.

OSA/SF Version 1 Release 2 (5655-104) is available as a separately orderable program product for the MVS/ESA V4R3, V5R1, and V5R2 environments.

For the enhancement (Configuration Flexibility for ATM OSA-2 Features -- REXX Exec Support) the following is required:

  • S/390 Open Systems Adapter Support Facility Version 1 Release 2 with APAR OW28283
For the enhancement (SNA/APPN Enhanced Connectivity for ATM OSA-2 Features -- Increased Number of PUs Supported) the following is required:
  • S/390 Open Systems Adapter Support Facility Version 1 Release 2 with APAR OW28666
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features.



VM/ESA

OSA/SF is integrated in VM/ESA Version 2 Release 2.0 and above and is available as an optionally installed facility.

For the ATM OSA-2 enhancements the following is required:

  • S/390 Open Systems Adapter Support Facility with APAR OW28966
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features.



VSE/ESA

OSA/SF is available as a component of VSE Central Functions 6.1.1 in VSE/ESA Version 2 Release 2.1 and above. OSA/SF is shipped on the extended base tape.

For TCP/IP Configuration Support and ATM OSA-2 enhancements the following is required:

  • S/390 Open Systems Adapter Support Facility with APAR PQ06993
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features.



PUBLICATIONS

                                                           Order
Title                                                      Number

Planning for the S/390 Open Systems GC23-3870 Adapter Feature

OS/390 Open Systems Adapter Support SC28-1855 Facility User's Guide

Using the S/390 Open Systems Adapter SC23-3872 Support Facility for MVS/ESA

VM/ESA: Open Systems Adapter Facility SC28-1992 User's Guide

VSE/ESA Open Systems Adapter Facility SC28-1946 User's Guide

Open Systems Adapter 2 Implementation SG24-4770 Guide



ORDERING INFORMATION

The following is required:

  • The S/390 Open Systems Adapter Support Facility with Program Temporary Fixes (PTFs) as identified in each environment (OS/390, MVS/ESA, VM/ESA, and VSE/ESA).



OS/390 and MVS/ESA

OSA/SF Version 1 Release 2 is available as a non-exclusive base element of OS/390 Release 2 and above. OSA/SF runs as a started task.

OSA/SF Version 1 Release 2 (5655-104) is available as a separately orderable program product for the MVS/ESA V4R3, V5R1, and V5R2 environments.

For the enhancement (Configuration Flexibility for ATM OSA-2 Features -- REXX Exec Support) the following is required:

  • S/390 Open Systems Adapter Support Facility Version 1 Release 2 with APAR OW28283
For the enhancement (SNA/APPN Enhanced Connectivity for ATM OSA-2 Features -- Increased Number of PUs Supported) the following is required:
  • S/390 Open Systems Adapter Support Facility Version 1 Release 2 with APAR OW28666
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.



VM/ESA

OSA/SF is integrated in VM/ESA Version 2 Release 2.0 and above and is available as an optionally installed facility.

For the ATM OSA-2 enhancements the following is required:

  • S/390 Open Systems Adapter Support Facility APAR OW28966
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.



VSE/ESA

OSA/SF is available as a component of VSE Central Functions 6.1.1 in VSE/ESA Version 2 Release 2.1 and above. OSA/SF is shipped on the extended base tape.

For TCP/IP Configuration Support and ATM OSA-2 enhancements the following is required:

  • S/390 Open Systems Adapter Support Facility with APAR PQ06993
The S/390 Open Systems Adapter 2 enhancements are available for the currently installed or on-order S/390 Open Systems Adapter 2 features. For the appropriate hardware service levels, contact your service representative.



Required Hardware and Software Levels

For complete information on the release levels, APARs, and PTFs that are required, refer to the appropriate program directory and the relevant preventive service planning (PSP) buckets, such as 9672DEVICE and OSA120 for OS/390 and MVS/ESA; VMESA210F for VM/ESA -- subset OSASF/220; VSEESA221 for VSE/ESA.



TERMS AND CONDITIONS

Terms and conditions are unaffected by this announcement.



CHARGES

Charges are unaffected by this announcement.



CALL NOW TO ORDER

To order, contact the IBM North America Sales Centers, your local IBM representative, or your IBM Business Partner (TM).

IBM North America Sales Centers, our national direct marketing organization, can add your name to the mailing list for catalogs of IBM products.

 Phone:     800-IBM-CALL
 Fax:       800-2IBM-FAX
 Internet:  ibm_direct@vnet.ibm.com
 Mail:      IBM North America Sales Centers
            Dept. LE010
            P.O. Box 16848
            Atlanta, GA  30321-0848
 Reference: LE010

To identify your local IBM Business Partner or IBM representative, call 800-IBM-4YOU.

Note: Shipments will begin after the planned availability date.

Trademarks

      MVS/ESA, OS/390, VSE/ESA, SP, S/390 Parallel Enterprise Server,
      S/390 Parallel Enterprise Server, Multiprise, and Business
      Partner are trademarks of International Business Machines
      Corporation in the United States or other countries or both.
      VM/ESA, APPN, S/390, OS/2, NetView, ACF/VTAM, and VTAM are
      registered trademarks of International Business Machines
      Corporation in the United States or other countries or both.
      Other company, product, and service names may be trademarks or
      service marks of others.