beautypg.com

Appn configuration commands – IBM SC30-3865-04 User Manual

Page 131

background image

Table 8. Configuration Parameter List - APPN Node Tuning (continued)

Parameter Information

Parameter

Maximum shared memory

Valid Values

0 - 5 108 KB

Default Value

5 108 KB

Description

This parameter specifies the amount of shared memory within the router that is
allocated to the APPN network node. APPN uses its shared memory allocation to
perform network operations and to maintain required tables and directories.

You can allow APPN to have a 4K RU size by setting

percent of APPN shared memory

used for buffers

to a sufficiently large value to allow at least 1 Megabyte of memory to

be available to the buffer manager.

This parameter is configurable using the Configuration Program and from talk 6

Parameter

Percent of APPN shared memory to be used for buffers

Valid Values

10 to 50

Default

10% or 512 Kilobytes, whichever is larger.

Description

This parameter specifies the amount of shared memory that APPN will use for buffers.

You can allow APPN to have a 4K RU size by setting

maximum shared memory

to at

least 1 Megabyte and setting

percent of APPN shared memory used for buffers

to a

sufficiently large value to allow at least 1 Megabyte of memory to be available to the
buffer manager.

This parameter is configurable using the Configuration Program and from talk 6

Parameter

Maximum cached directory entries

Valid Values

0 to 65 535

Default

4000

Description

This parameter specifies the number of directory entries to be stored or cached by the
router network node. If a directory entry for a node is cached, the router does not need
to broadcast a search request to locate the node. This reduces the time it takes to
initiate sessions with the node.

This parameter is configurable using the Configuration Program and from talk 6

Syntax:

set

traces

APPN Configuration Commands

Chapter 2. Configuring and Monitoring APPN

101

|
|