Re: array-user snmpbulkwalk worked for a table not entire mib

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Hi Dave,



Thanks again. Could you possibly explain why an snmpbulkwalk

command would work on my MIB when the non-repeater value is set to 1

and fail when not set at all? As my original email specified, if a

snmpbulkwalk is done on one of my tables I get:



No more variables left in this MIB View (It is past the end of the MIB tree)



If the -Cn1 is set then no such problem. The real problem is

trying to walk multiple tables in one snmpbulkwalk, as it can't go

from one to another if it receives the "No more" after the first.



- John







--- On Thu 05/26, Dave Shield wrote:

From: Dave Shield [mailto: D.T.Shield@csc.liv.ac.uk]

To: jntdino@excite.com

Cc: net-snmp-users@lists.sourceforge.net

Date: Thu, 26 May 2005 16:11:47 +0100

Subject: Re: array-user snmpbulkwalk worked for a table not entire mib



On Thu, 2005-05-26 at 15:48, jntdino@excite.com wrote:> does setting the > non-repeater value to 1 have a similar functional effect to the a > command as the max-repetitions?No - the two fields have completely different purposes.A single GetBulk request is basically equivalent to oneGetNext request (with "non-repeater" varbinds) followedby "max-repetitions" GetNext requests (each containingthe remaining varbinds).So GetBulk( non=2, max=3) A B C D Eis equivalent to: GetNext A B GetNext C D E GetNext C' D' E' GetNext C" D" E"If max=1, then this becomes GetNext A B GetNext C D Ewhich is exactly equivalent to GetNext A B C D EIt's the max-repetitions field that really distinguishesGetBulk from GetNext requests. Hence setting this to 1is pointless.Dave

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Hi Dave,



Thanks again. Could you possibly explain why an snmpbulkwalk

command would work on my MIB when the non-repeater value is set to 1

and fail when not set at all? As my original email specified, if a

snmpbulkwalk is done on one of my tables I get:



No more variables left in this MIB View (It is past the end of the MIB tree)



If the -Cn1 is set then no such problem. The real problem is

trying to walk multiple tables in one snmpbulkwalk, as it can't go

from one to another if it receives the "No more" after the first.



- John



<br>

<br>

--- On Thu 05/26, Dave Shield < D.T.Shield@csc.liv.ac.uk > wrote:

From: Dave Shield [mailto: D.T.Shield@csc.liv.ac.uk]

To: jntdino@excite.com

Cc: net-snmp-users@lists.sourceforge.net

Date: Thu, 26 May 2005 16:11:47 +0100

Subject: Re: array-user snmpbulkwalk worked for a table not entire mib



On Thu, 2005-05-26 at 15:48, jntdino@excite.com wrote:<br><br>> does setting the <br>> non-repeater value to 1 have a similar functional effect to the a <br>> command as the max-repetitions?<br><br><br>No - the two fields have completely different purposes.<br><br>A single GetBulk request is basically equivalent to one<br>GetNext request (with "non-repeater" varbinds) followed<br>by "max-repetitions" GetNext requests (each containing<br>the remaining varbinds).<br><br>So<br> GetBulk( non=2, max=3) A B C D E<br><br>is equivalent to:<br><br> GetNext A B<br> GetNext C D E<br> GetNext C' D' E'<br> GetNext C" D" E"<br><br><br>If max=1, then this becomes<br><br> GetNext A B<br> GetNext C D E<br><br>which is exactly equivalent to<br><br> GetNext A B C D E<br><br>It's the max-repetitions field that really distinguishes<br>GetBulk from GetNext requests. Hence setting this to 1<br>is
pointless.<br><br>Dave<br><br><p><hr><font size=2 face=geneva><b>Join Excite! - <a href=http://www.excite.com target=_blank>http://www.excite.com</a></b><br>The most personalized portal on the Web!</font>

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