HP-UX SNAplus2 R7 NOF Programmer's Guide

NOF API Verbs
QUERY_DOWNSTREAM_LU
When the node is not running, this parameter is ignored; SNAplus2 returns information about all downstream
LUs.
3.117.3 Returned Parameters: Successful Execution
If the verb executes successfully, SNAplus2 returns the following parameters:
primary_rc
AP_OK
buf_size
Length of the information returned in the supplied buffer.
total_buf_size
Returned value indicating the size of buffer that would have been required to return all the list information
requested. A value greater than
buf_size indicates that not all the available entries were returned.
num_entries
Number of entries returned in the data buffer.
total_num_entries
Total number of entries available. A value greater than num_entries indicates that not all the available entries
were returned.
Each entry in the data buffer consists of the following parameters:
downstream_lu_summary.overlay_size
The size of the returned
downstream_lu_summary structure, and therefore the offset to the start of the next entry
in the data buffer.
When your application needs to go through the returned buffer to find each
downstream_lu_summary structure
in turn, it must use this value to move to the correct offset for the next data structure, and must not use the
C
sizeof() operator. This is because the size of the returned overlay may increase in future releases of
SNAplus2; using the returned overlay size ensures that your application will continue to work with future
releases.
downstream_lu_summary.dspu_name
Name of the PU associated with the LU. The name is an 8-byte EBCDIC type-A string, padded on the right
with EBCDIC spaces if the name is shorter than 8 characters.
downstream_lu_summary.dslu_name
Name of the LU. The name is an 8-byte EBCDIC type-A string, padded on the right with EBCDIC spaces if
the name is shorter than 8 characters.
downstream_lu_summary.description
A null-terminated text string describing the downstream LU, as specified in the definition of the downstream
LU.
For a DLUR-supported LU, this parameter is reserved.
downstream_lu_summary.dspu_services
When the verb is issued to a running node, this parameter specifies the services provided by the local node
to the downstream LU.
Possible values are:
AP_PU_CONCENTRATION
Downstream LU is served by PU concentration.
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