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Networkinggetting Started with System I Communications IBM i Version 7.2 Networking Getting started with System i communications IBM Note Before using this information and the product it supports, read the information in “Notices” on page 99. This document may contain references to Licensed Internal Code. Licensed Internal Code is Machine Code and is licensed to you under the terms of the IBM License Agreement for Machine Code. © Copyright International Business Machines Corporation 1998, 2013. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Getting started with IBM i communications............................................................ 1 PDF file for Getting started with System i communications....................................................................... 1 Networking concepts................................................................................................................................... 1 Advanced Peer-to-Peer Networking...................................................................................................... 1 Advanced Program-to-Program Communication.................................................................................. 2 Dependent logical unit requester...........................................................................................................3 High-Performance Routing.....................................................................................................................3 Systems Network Architecture.............................................................................................................. 5 TCP/IP..................................................................................................................................................... 5 Configuring your iSeries server for communications.................................................................................. 5 Creating a network interface description...............................................................................................5 Creating a network server description...................................................................................................5 Creating a line description......................................................................................................................5 Optimizing communications performance.................................................................................................. 6 Improving wide area network performance.......................................................................................... 6 Improving local area network performance.......................................................................................... 8 Improving data path performance.......................................................................................................10 Communications applications................................................................................................................... 17 User-written APPC applications...........................................................................................................17 Distributed data management............................................................................................................. 17 Application programming interface performance considerations......................................................18 Communicating with a host system.......................................................................................................... 20 Matching iSeries system parameters for a host system......................................................................20 Configuring depedent logical unit requester....................................................................................... 33 Communicating with a remote iSeries server........................................................................................... 34 Matching iSeries system line description parameters for a remote iSeries system...........................34 Matching iSeries system controller description parameters for a remote iSeries system.................37 Matching iSeries system device description parameters for a remote iSeries system......................38 Examples: Connecting one iSeries server to another iSeries server.................................................. 39 Communicating with a remote workstation controller............................................................................. 43 Matching iSeries system parameters for a 5494 controller................................................................43 Matching iSeries system parameters for a 3x74 controller................................................................ 52 Matching iSeries system parameters for finance controllers..............................................................57 Matching iSeries system parameters for retail controllers................................................................. 62 Common networking standards................................................................................................................ 72 Local area network standards..............................................................................................................72 Wide area network standards.............................................................................................................. 74 Troubleshooting communications problems............................................................................................ 76 Displaying message queues to solve communication problems........................................................ 76 Displaying the Product Activity Log to solve communication problems.............................................77 Displaying the Print Error Log to solve communication problems......................................................77 Using communications trace to solve communication problems.......................................................78 Using the system problem log to solve communication problems.....................................................81 Using the status information to solve communication problems....................................................... 82 Using reason codes to solve communication problems......................................................................82 Considerations for system tuning during error recovery.....................................................................84 Using error messages to aid in error recovery.....................................................................................85 Reference information............................................................................................................................... 85 Example details: iSeries to host server connection over a nonswitched SDLC line........................... 85 Example details: iSeries to host server connection over a token-ring line.........................................86 Example details: iSeries server DLUR support with connection to the host server........................... 87 iii Example details: iSeries server with APPN connection to VTAM........................................................88 Example details: iSeries server to iSeries server connection using X.25...........................................90 Example details: iSeries server to iSeries server connection using SDLC..........................................91 Example details: iSeries server to iSeries server connection using one-way automatic dial............92 Example details: iSeries server to iSeries server connection using Enterprise Extender (HPRIP)....94 Example details: iSeries server connection to a 3174 control unit.................................................... 95 Example details: iSeries server connection to 4690 LU0 over token-ring network...........................96 Example details: iSeries server connection to 4690 peer over token-ring network..........................96 Notices................................................................................................................99 Programming interface information........................................................................................................100 Trademarks.............................................................................................................................................. 100 Terms and conditions.............................................................................................................................. 101 iv Getting started with IBM i communications The iSeries server can use many different networking technologies. Supported protocols include TCP/IP, APPC, APPN, HPR, Remote workstation, asynchronous, and binary synchronous communications. iSeries communications configuration is done by either manually or automatically creating a set of configuration objects that represent the local and remote systems that are to communicate. The types of objects that are created for a communications configuration depend on the type of communications being configured. PDF file for Getting started with System i communications You can view and print a PDF file of this information. To view or download the PDF version, select Getting started with System i communications (about 2180 KB). Saving PDF files To save a PDF on your workstation for viewing or printing: 1. Right-click the PDF link in your browser. 2. Click the option that saves the PDF locally.
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