Re: error showing SNMPWALK on the last table of a view

[sarath a. <sar...@ya...>]

Hi Chris,

Thanks for the reply.
I did some more tests to understand the problem. I find that if we are configuring a table's OID in the view and doing a SNMPWALK on the table, we are getting all the data from the table and at the end getting the message:
"No more variables left in this MIB View (It is past the end of the MIB tree)"

But when we configure the view with the OID of a column of the table instead of the OID of the whole table as done above, and do SNMPWALK on that column OID, we are getting all the data from that column and at the end we are getting Timeout message:
"Timeout: No Response from <device - ip>"


I have tried with delay option " -T 10" also , but same result.
If we are using column of the table as last or only OID in the view, we are getting timeout message after SNMPWALK on the column.
Looking at the packets captured while the SNMPWALK, once we came to the end of the column no reply was sent for the last get-next query and it did few repeats and showed timeout. But when we configured the whole table OID in the view, for the last get-next a reply went with the next table and SNMPWALK stopped with message that we reached the end of the view.

thanks and regards
S Sarath 


On Wednesday, June 25, 2014 1:11 AM, chris tech <chr...@ya...> wrote:
 


Hello,
 
Does the same happen when you change the default timeout say with your snmpwalk -t 10 [the rest of your arguments] (for 10 sec), and does the same happen if you try to do a snmpwalk on the tree that appears last just before the timeout? 
 
24.06.2014, 16:37, "sarath azad" <sar...@ya...>:
Hello,
> 
>Could you please help in resolving the below problem?
> 
>If we are configuring a view containing a single MIB table and do a SNMPWALK on it, it is showing all the data on the table and at the end of the table it is showing a message:
>"No more variables left in this MIB View (It is past the end of the MIB tree)"
> 
>If this table is a small table with few entries it is showing above message. And if it is a big table with some 4 thousand odd entries it is showing "Timeout: No Response from <device - ip>".
> 
>When looking at the snmp packets exchanged, For the query on the smaller table, after the table's last entry is sent, another snmp get-next is sent to the device with the last entity of the table. Now as the next entity is outside the view (since our table is the last item in the view) it is getting message that no more variables in the view. But if the table is big with few thousands of entries, this last snmp get-next with the last index is not responded. After a few retries we are getting Timeout message. 
> 
>Could you please help in resolving this issue, as why this timeout is showing for large tables?
> 
>thanks and regards
>S Sarath,
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