On Thu, 2006-01-26 at 15:25 -0500, Brian A. Seklecki wrote:
> Regarding the future of IPMI and SNMP, where do they intersect
> in the evolution of enterprise free software (aka, BSD) ?

Hmmmm...
IPMI isn't something that I've really looked at, so take the
following with a generous pinch of salt.   But from a quick
browse, I think they are complementary technologies.

The fundamental role of SNMP is to report and/or update various
bits of management information.  How that information is retrieved
from the underlying system is irrelevant - SNMP and the management
console don't care.



> What about more-practicle examples of IPMI -> Net-SNMP integration.

The obvious role for IPMI is in providing a mechanism for the agent
to retrieve such management information.  But this part of the agent
internals - it shouldn't be visible from outside.  The management
console doesn't really care whether the agent uses IPMI to report
what's happening, delving into the running kernel, or seeking
divine inspiration.  If SNMP provides the information, that's
all that matters.


> (an OID tree would need to be assigned to IPMI?)

That feels the wrong approach, IMO.
Bruce has already mentioned the LM-SENSORS-MIB, which was developed
with a particular sensor in mind, and he's been struggling with the
limitations of this.   IPMI seems to be rather more general in aim,
but an IPMI-MIB would still run the risk of being too specific, IMHO.


> Two [examples] come to mind: Platform independent environmental sensor
> data and chassis information.

My advice would be to look at using the existing "Entity Sensor MIB"
(RFC 3433) for the first, and view IPMI as the preferred mechanism
for populating this.   I believe that this MIB should be flexible
enough to cope with most of the examples you list.

Chassis information (IIUC) is very much the purpose of the "Entity
MIB" (RFC 4133).  So that would be the obvious way to report the
physical configuration of a system.   Though I'd probably suggest
starting simply, and just concentrate on the physical group
to begin with.

That might also help Bruce's problems with the existing sensor
reporting.


Dave


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