RE: Problem/Issue importing MIB net-snmp

Thanks for your response Dave,

More comments below **

N
-----Original Message-----
From: Dave Shield [mailto:[email protected]] 
Sent: Wednesday, February 01, 2006 12:33 PM
To: Brazell, Nate (CTR)
Cc: [email protected]
Subject: Re: Problem/Issue importing MIB net-snmp

On Wed, 2006-02-01 at 11:50 -0500, Brazell, Nate (CTR) wrote:

> 1.  Is net-snmp able to use the FIBRE-CHANNEL-FE-MIB
>     or the FCMGMT-MIB?

What do you mean by "use" ?
**  I guess what I mean is can it query the objects in the MIB without
writing custom code.  Since this is a popular MIB it seems someone would
have done the code writing already.  <Cringing at the thought of writing
code>

If you've got an agent that you know implements these
MIBs, then the Net-SNMP tools should be able to recognise
the MIB object names, and retrieve the appropriate values
with no real changes.
**  Isn't snmpd the agent?  Could it be as easy as compiling snmpd with
a --with-module=xxx.  How do I know what MIB's snmpd implements?

If you want the Net-SNMP agent to *report* these values,
then this involves a significant amount of work.
**  Could you explain this a little more?  I am not a code writer but I
understand code writing if that makes any sense?


> 3.  I've read several posts of web sites where you can download
>     new MIBS and install them but does it always require a rebuild
>     of the net-snmp suite or custom code writing?

If you already have a suitable agent, then no.
If you need to *extend* the agent to support this new MIB, then yes.



> I then use the snmptranslate -m +FIBRE-CHANNEL-FE-MIB -IR fcFxPortName
> This returns:
>       FIBRE-CHANNEL-FE-MIB::fcFxPortName 

> (Not a OID as the FAQ for adding MIBS suggests) Is this correct?

The default output format has changed since the FAQ was written.
Try
    snmptranslate -m +FIBRE-CHANNEL-FE-MIB -IR -On fcFxPortName
or
    snmptranslate -m +FIBRE-CHANNEL-FE-MIB -IR -Of fcFxPortName

That should work OK.


**  And it did in fact work ok.  Thanks.  Baby steps huh?

> Also snmpwalk -v2c -c readonlystringhere -localhost fcFxPortName
> Returns
> 
>      FIBRE-CHANNEL-FE-MIB::fcFxPortName = No Such Object

Because the agent does not implement this object.
You'll need to write code for that.

** Thanks Dave.


Dave


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