Tips and Techniques for Using TCP/IP on i5/OS

An IBM Redpaper publication

Published 25 May 2006

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IBM Form #: REDP-4158-00
(50 pages)

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Authors: Yessong Johng, Clair Wood, Garrett Lanzy, John Kasperski, John Wingertsman


This IBM Redpaper provides various tips and techniques for managing TCP/IP with IBM i5/OS:
- Various recommendations that might improve your network configuration and enable you to obtain optimal performance in a TCP/IP network.
- Information about the different ways that TCP/IP can be started and ended, including potential problems that might occur if starting TCP/IP is not carefully planned.
- Discussion about why it is important for a TCP/IP application to check the status of TCP/IP in a proper way. Includes an example of a program that checks TCP/IP status.
- Procedure for assigning an alias to a TCP/IP interface that can be used in place of an IP address in programs. Information is also provided about a new feature called the preferred interface list to assist with handling adapter failures.
- Notes about using exit programs and what you can do with the exit points that are defined for IBM-supplied TCP/IP applications.

Table of contents

Chapter 1. Optimizing performance in a TCP/IP network
Chapter 2. Considerations for starting and ending TCP/IP
Chapter 3. Checking TCP/IP status programmatically
Chapter 4. Using alias names and setting proxy ARP and preferred interface lists programmatically
Chapter 5. Using Exit programs

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