RE: Row operation in Net-SNMP

Hi Gefei

Yes, seems not only me have this question.
Hope Dave could give us some suggestion.

Thanks,
Barclay

-----Original Message-----
From: gefei [mailto:[email protected]] 
Sent: 2013年4月24日 23:25
To: Zheng, Wenjie (Barclay); 'Dave Shield'
Cc: [email protected]; [email protected]
Subject: RE: Row operation in Net-SNMP

Hi Wenjie,

I have the same question as you have, which is how to iterate the table row
by row instead of column by column. I posted it couple of months ago without
any answer yet.

I wonder if there is a way to choose which one to use during configuration
process.

If I could do that my snmpwalk would be 10 times faster in some cases.

If you find something let me know.

Thanks,

Gefei Jiang


-----Original Message-----
From: Zheng, Wenjie (Barclay) [mailto:[email protected]] 
Sent: Tuesday, April 23, 2013 11:03 PM
To: Zheng, Wenjie (Barclay); Dave Shield
Cc: [email protected];
[email protected]
Subject: Row operation in Net-SNMP

Hi, Dave et al,

I have a puzzle of Net-SNMP table operation, for example I have a table like
below:

a1-a2-a3-a4
b1-b2-b3-b4
c1-c2-c3-c4

In net-snmp, if I use iterator helper to implement the table handler, it
will translate the getbulk request to bunch of get request, the order is:
a1->b1->c1->a2->b2->c2.....

So it's first column then send column and so on. In my case, the data is
stored ourside in row order, like first row, second row.
a1->a2->a3->a4->b1->b2....
I can read the whole row one time, and then return all the values for the
whole row. Then I only need read outside data 3 times for the whole table.
But in the itorator helper, I will need to read outside data 12 times for
the whole table.

Do you have any good suggestion on this?

Thanks and have a nice day!
Barclay

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