The following are node tuning characteristics:
This option allows you to configure APPN node tuning parameters.
Answer the following questions:
This parameter is an estimate of the maximum number of nodes that you expect to be logically adjacent to this router network node at any one time.
This parameter is used along with the Maximum number of ISR sessions parameter by the automatic tuning algorithm to calculate the values for the Maximum shared memory and Maximum cached directory entries tuning parameters.
Valid Values: 1 to 2800
Default Value: 100
Default Value:
Valid Values: 10 to 8000
Default Value: 50
This parameter is an estimate of the maximum number of TGs connecting network nodes in the sub-network (that is, in the topology known by this node).
Valid Values: 9 to 64000
Default Value: 3 times the value of the maximum number of network nodes in the sub-network.
This parameter specifies an estimate of the maximum number of intermediate session routing sessions (ISR) expected to be supported by this router network node at any one time.
This parameter is used in conjunction with the Maximum number of adjacent nodes parameter by the automatic tuning algorithm to calculate the values for the Maximum shared memory and Maximum cached directory entries tuning parameters.
Valid Values: 10 to 7500
Default Value: 200
This parameter specifies an estimate of the maximum number of adjacent EN and NN, with CP-CP sessions using option set 1402 (Control Flows over RTP option set).
Valid Values: 0 to 100%
Default Value: 0 (none)
This parameter specifies the largest percentage of ISR sessions that use ISR to HPR mappings.
Valid Values: 0 to 100%
Default Value: 0 percent
This parameter specifies the largest percentage of adjacent nodes allowed to function as adjacent DLUR PU nodes.
Valid Values: 0 to 100 percent
Default Value: 0 percent
Valid Values: 0 to 100%
Default Value: 0%
This parameter specifies a maximum number of buffers to be reserved for ISR session accounting.
Valid Values: 0 or 1
Default Value: 0 (default is 1 if ISR session accounting is enabled)
This parameter specifies a maximum number of memory records per ISR accounting buffer.
This parameter is configurable using the &cfgprg; only.
Valid Values: 0 to 2000
Default Value: 100
When enabled, this parameter overrides the tuning calculations generated by the Command Line and enables you to specify explicit values for the Maximum shared memory parameter and the Maximum cached directory entries parameter.
This parameter is configurable using the &cfgprg; only.
Valid Values: Yes, No
Default Value: No
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.
Valid Values: 1280 - 40960 KB
Default Value: 40960 KB
This parameter specifies the amount of shared memory that APPN will use for buffers.
Valid Values: 10 to 50
Default Value: 10% or 512 Kilobytes, whichever is larger.
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.
Valid Values: 0 to 65535
Default Value: 4000
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