SNMP problems checking switch
Andreas Ericsson
ae at op5.se
Wed Nov 3 12:39:24 CET 2004
Florian Beese wrote:
> Hi,
>
> I got a problem using SNMP on a 3COM Super Stack II Switch.
>
> I am using the MIB-2 (described in RFC 1213), which is supported for this
> switch.
>
> Now, when I do the following:
> ./check_snmp -H 1.1.1.1 -C public -o 1.3.6.1.2.1.2.1.0
> I get an "SNMP OK - 34" for the number of interfaces, which is a bit strange
> (34? on 12-port), but seems ok so far.
It includes NULL, loopback, and possibly a plethora of different interfaces.
> When I don't put the 0 at the end it isn't working anymore. But on some other
> machines we monitor with SNMP it works. I looked it up in the documentation and
> with the 0 it should work properly... As long as I don't want to access any
> tables.
>
> When I do the following:
> ./check_snmp -H 1.1.1.1 -C public -o 1.3.6.1.2.1.2.2.1.8.1
> to check the status of the first interface on the switch I don't get a
> respone "SNMP problem - No data received from host". With other switches it
> works properly. I tried some other values of the table and of another table and
> got no response, too.
>
> Any idea, why this isn't working?
>
Yes.
.1.3.6.1.2.1.2.2.1.8 means 'status of first logical interface'.
.1.3.6.1.2.1.2.2.2.8 means 'status of second logical interface'.
I'm sure you get the drift.
snmpwalk -v 1 -c public host .1.3.6.1.2.1.2.2
should be somewhat enlightening as well.
> Thanks in advance!
>
You're welcome.
> regards
> Florian Beese
>
> PS: Excuse my bad english.
>
It's far better than most native english speakers on this list, so don't
apologize for it.
--
Andreas Ericsson andreas.ericsson at op5.se
OP5 AB www.op5.se
Lead Developer
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