IBM AS/400, Hardware User Manual

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Contents
Part 1. Getting started with AS/400 communications . . . . . . . . . . . . . . 1
Chapter 1. Print this topic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 2. Configuring AS/400 for communications . . . . . . . . . . . . . . . . . . . 5
Creating a network interface description . . . . . . . . . . . . . . . . . . . . . . . . 5
Creating a network server description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Creating a line description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 3. Optimizing communications performance . . . . . . . . . . . . . . . . . . 7
Improving wide area network performance . . . . . . . . . . . . . . . . . . . . . . . . 7
Adjusting WAN protocols for optimum AS/400 performance . . . . . . . . . . . . . . . . 7
Adjusting the WAN line speed for optimum AS/400 performance. . . . . . . . . . . . . . . 7
WAN line speed considerations for IOPs
. . . . . . . . . . . . . . . . . . . . . . . 8
Improving local area network performance . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjusting LANs for optimum communications performance . . . . . . . . . . . . . . . . . 9
Adjusting LAN lines for optimum communications performance . . . . . . . . . . . . . . . 9
LAN line speed considerations for IOPs . . . . . . . . . . . . . . . . . . . . . . . 10
Improving data path performance . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Considerations for subsystem configuration for error recovery performance . . . . . . . . . . 11
Communications performance considerations for interactive jobs . . . . . . . . . . . . . . 12
Communications performance considerations for batch jobs . . . . . . . . . . . . . . . . 13
Mixing interactive and batch jobs on a WAN line . . . . . . . . . . . . . . . . . . . . 13
Performance considerations for AnyNet communications . . . . . . . . . . . . . . . . . 14
Subsystems
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 4. Communications applications . . . . . . . . . . . . . . . . . . . . . . . 17
User written APPC applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Distributed data management (DDM) . . . . . . . . . . . . . . . . . . . . . . . . . 17
Application program interface (API) performance considerations . . . . . . . . . . . . . . . 17
Performance considerations for intersystem communications function . . . . . . . . . . . . 18
Performance considerations for Common Programming Interface Communications
. . . . . . . 19
Chapter 5. Communicating with host systems . . . . . . . . . . . . . . . . . . . . . 21
Matching AS/400 parameters for a host system . . . . . . . . . . . . . . . . . . . . . 21
Matching AS/400 line description parameters for a host system . . . . . . . . . . . . . . 21
Matching AS/400 controller description parameters for a host system . . . . . . . . . . . . 23
Matching AS/400 device description parameters for a host system . . . . . . . . . . . . . 24
Matching AS/400 mode and class-of-service description parameters for a host system . . . . . . 25
Configuring dependent LU requester (DLUR) . . . . . . . . . . . . . . . . . . . . . . 31
Configuring the host controller description . . . . . . . . . . . . . . . . . . . . . . 31
Configuring the device descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 6. Communicating with a remote AS/400 system . . . . . . . . . . . . . . . . 33
Matching AS/400 line description parameters for a remote AS/400 system . . . . . . . . . . . 33
Matching AS/400 controller description parameters for a remote AS/400 system . . . . . . . . . 35
Matching AS/400 device description parameters for a remote AS/400 system . . . . . . . . . . 36
Connecting one AS/400 to another AS/400 system . . . . . . . . . . . . . . . . . . . . 37
Chapter 7. Communicating with remote workstation controllers . . . . . . . . . . . . . . 41
Matching AS/400 parameters for 5494 controllers. . . . . . . . . . . . . . . . . . . . . 41
Matching AS/400 parameters for a 5494 connected by token-ring . . . . . . . . . . . . . . 41
Matching AS/400 parameters for a 5494 connected by Ethernet . . . . . . . . . . . . . . 44
© Copyright IBM Corp. 1998, 2001
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