GetNext index problem

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Old 12-11-2007
Rotem Tzuk
 
Posts: n/a
Default GetNext index problem
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Hi
=20
I have implemented a MIB that includes a table.
I use the iterator functions as shown in the example MIB.
I have 2 rows in my table each refers to a file that holds the data.
My iterator handlers set the appropriate file name in the
my_data_context.=20
I extract the file name in the MIB handler by calling
netsnmp_extract_iterator_context.
=20
When I run snmpwalk I get all my data as expected - both rows are there.
=20
When I try to get a specific index by calling
snmpgetnext -v2c -c public localhost MY-MIB::myValue.1
or=20
snmpgetnext -v2c -c public localhost MY-MIB::myValue.2
=20
I always get the first value - for some reason the index is ignored.
=20
Tracing the MIB handler - file name extracted form
netsnmp_extract_iterator_context is always the first file.
My MIB handler is called only once (which is OK).
=20
=20
Can you provide some hint for wrong implementation of table indexing or
better way to call snmpgetnext?
=20
=20
thanks in advance
Rotem
=20
=20






=20

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.6000.16546" name=3DGENERATOR></HEAD>
<BODY>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007>Hi</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D928441809-11122007>I have =
implemented a=20
MIB that includes a table.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D928441809-11122007>I use =
the <FONT=20
color=3D#010001>iterator </FONT>functions as shown in the example=20
MIB.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>I have=20
2 rows in my table each refers to a file that holds the=20
data.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>My=20
iterator handlers set the appropriate file name in the my_data_context.=20
</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>I=20
extract the file name in the MIB handler by calling <FONT =
color=3D#010001=20
size=3D2>netsnmp_extract_iterator_context.</FONT></SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>When I=20
run <FONT face=3D"Times New Roman">snmpwalk</FONT> I get all my data as =
expected -=20
both rows are there.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>When I=20
try to get a specific index by calling</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007>snmpgetnext -v2c -c public localhost=20
MY-MIB::myValue.1</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>or=20
</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007>snmpgetnext -v2c -c public localhost=20
MY-MIB::myValue.2</SPAN></FONT></DIV></SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007>&nbsp;I always get the first value - for some =
reason=20
the index is ignored.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007>Tracing the MIB handler - file name extracted =
form=20
netsnmp_extract_iterator_context is always the first =
file.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN =
class=3D928441809-11122007>My MIB=20
handler is called only once (which is OK).</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial color=3D#010001 size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D928441809-11122007>Can =
you provide some=20
hint for wrong implementation of table indexing or better way to call=20
snmpgetnext?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D928441809-11122007>thanks =
in=20
advance</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007>Rotem</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D928441809-11122007></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV><FONT face=3DArial=20
size=3D2></FONT><FONT face=3DArial color=3D#010001 =
size=3D2></FONT><BR><BR><BR><BR><BR>
<DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial=20
size=3D2></FONT>&nbsp;</DIV></BODY></HTML>

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