Retrieving varbinds in sequence from pdu

Hi,

I have a requirement to performe various processing for each parameter 
received in a PDU.  I am using NetSNMP as an EMS agent (mid level agent), 
and when I receive a SET Request from higher level manager, I need to SET 
the data on the lower level component. 

I am currently handling a PDU by building a buffer in the RESERVE1 and 
RESERVE2 passes, and sending the buffer to to lower level component in the 
COMMIT pass.

The problem is when I receive a PDU containing 2 tabular parameters, 
followed by 1 scalar parameter, followed by 1 tabular parameters.   The 
processing is done in the order 
        TABULAR 1 RESERVE1
        TABULAR 2 RESERVE1
        TABULAR 3 RESERVE1
        TABULAR 4 RESERVE1
        TABULAR 1 RESERVE2
        TABULAR 2 RESERVE2
        TABULAR 3 RESERVE2
        TABULAR 4 RESERVE2
        SCALAR RESERVE1
        SCALAR RESERVE2
so that all the tabular parameters are handled before the scalar parameter 
is handled, even though the scalar was the third parameter. 

I require my processing to be performed in the order -
        TABULAR 1 RESERVE1
        TABULAR 2 RESERVE1
        TABULAR 3 RESERVE1
        TABULAR 4 RESERVE1
        SCALAR RESERVE1
        SCALAR RESERVE2
        TABULAR 1 RESERVE2
        TABULAR 2 RESERVE2
        TABULAR 3 RESERVE2
        TABULAR 4 RESERVE2
as I need to perform some custom handling on all tabular parameters 
received before the scalar parameter.

Please let me know if there is any way to determine the order of the 
parameters in the PDU, irrespective of the type of parameter (scalar or 
tabular).  Although I have not checked, but this descripancy may also be 
due to different files being generated for the different types of 
parameters.

Thanks in advance,
Anjali

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