Thanks for excellent answer!
Martin
On 7/8/15, Stuart Kendrick <stua...@alleninstitute.org> wrote:
> Yes, I understand the relationship between SNMP agents & MIB files in the
> way you and DPS describe below.
>
> Rephrasing using my words:
>
> - Manufacturer decides to support, say, monitoring fan state. Let's take
> Cisco as an example
>
> - Cisco writes the CISCO-ENVMON-MIB file, including an Object Value which
> returns the state of a given fan:
>
> ciscoEnvMonFanState OBJECT-TYPE
> SYNTAX CiscoEnvMonState
> MAX-ACCESS read-only
> STATUS current
> DESCRIPTION
> "The current state of the fan being instrumented."
> ::= { ciscoEnvMonFanStatusEntry 3 }
>
> - Developers use the definitions in that MIB file to write code. I suspect
> that implementations vary widely -- one possible way to do this:
> (1) In the Cisco IOS, include support for talking to the hardware in order
> to report on fan state
> (2) In the Cisco CLI, include support for some sort of 'show fan state'
> command
> (3) In the Cisco SNMP agent, include support for querying fan state
>
> - Voila: an operating system which supports reporting on fan state from
> both the CLI and the SNMP agent.
>
> --sk
>
> -----Original Message-----
> From: Martin T [mailto:m4rtn...@gmail.com]
> Sent: Wednesday, July 08, 2015 8:30 AM
> To: net-snmp-users@lists.sourceforge.net
> Subject: correlation of MIB files and MIB support on SNMP agents
>
> Hi,
>
> I read a product pamphlet from DPS Telecom where they had following Q&A
> section:
>
> -----
> Q: I want to use a device feature that isn’t described in the MIB.
> What can I do?
>
> A: You can ask the vendor to extend the MIB to include this feature.
> DPS Telecom has extended its MIB to support client needs. But you need to
> understand that extending a MIB is actually a software development project.
> The MIB is not just a text file. It’s also a software interface document to
> the embedded firmware of your SNMP device.
> Making additions to the MIB requires rewriting the device firmware.
> This is a serious project, involving writing code, debugging it, and
> undergoing a thorough quality assurance process.
> -----
>
> So am I correct that vendors like Cisco or Juniper develop their MIB files
> which are downloadable from their web-sites tightly with their MIB support
> on SNMP agents? In other words MIB files and MIB support on SNMP agents is
> closely correlated?
>
>
> thanks,
> Martin
>
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