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As/400, 5/38 AND PS/2 AS 12.1 NODES
IN A SUBAREA NElWORK
G24-3420-00
AS/400, S/38 and PS/2 as T2.1 Nodes
in a Subarea Network
Document Number GG24-3420
September 30, 1989
International Technical Support Center, Raleigh
Edition (September 1989)
This edition applies to Release 1.2 of AS/400 Operating System/400 and to all subsequent releases
until otherwise indicated in new editions or technical bulletins. It also applies to CPF Release 8 of the
S/38, DOS 3.3 for the PC and PS/2 and OS/2 EE 1.2 for the PS/2.
Referel1ces in this publication to IBM products, programs, or services do not imply that IBM intends to
make these available in all countries in which IBM operates. Any reference to an IBM program
product in this document is not intended to state or imply that only IBM's program product may be
used. Any functionally equivalent program may be used instead.
The information contained in this document has not been submitted to any formal IBM test and
is distributed on an 'As Is' basis without any warranty either express or implied. The use of
this information or the implementation of any of these techniques is a customer responsibility
and depends on the customer's ability to evaluate and integrate them into the customer's oper-
ational environment. While each item may have been reviewed by IBM for accuracy in a spe-
cific situation, there is no guarantee that the same or similar results will be obtained
elsewhere. Customers attempting to adapt these techniques to their own environments do so
at their own risk.
Publications are not stocked at the address given below. Requests for IBM publications should be
made to the IBM branch office serving your locality.
A form for reader's comments is provided at the back of this publication. If the form has been
removed, comments may be addressed to
IBM International Technical Support Center
Department 985, Building B657
P.O. Box 12195
Research Triangle Park, North Carolina 27709
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IBM may use or distribute whatever information you supply in any way it believes appropriate without
incurring any obligation to you.
IBM is a registered trademark of the International Business Machines Corporation.
AS/400, oS/400 , PS/2 and OS/2 are trademarks of the International Business Machines Corporation.
(c) Copyright International Business Machines Corporation 1989
ii AS/400, S/38 and PS/2 as T2.1 Nodes in a Subarea Network
Abstract
Advanced Peer-to-Peer Networking (APPN) is the latest network implementation
to connect peer systems. Today with the T2.1 implementation on VTAM V3R2
and NCP V4R3, V5R2 it is possible to attach APPN networks to a subarea
network and use all the T2.1 advantages (for example, use of routing capabili-
ties on the host, parallel and multiple session support).
This document contains information on this implementation of Advanced Peer-
to-Peer Networking (APPN) in a network conSisting of an AS/400, System/38,
PS/2 and an S/370 SNA subarea network. It will also discuss some of the con-
siderations which need to be made when a switched line, leased line or token-
ring connection is used in this type of network.
The information is based on installation and operation experiences obtained
during a residency project at the ITSC Raleigh.
You should treat this document only as a supplement to the standard IBM refer-
ence publications.
ASYS MSYS LSYS CSYS (361 pages)
Abstract iii
Iv AS/400, S/38 and PS/2 as T2.1 Nodes in a Subarea Network
Acknowledgements
The authors of this document are: