Re: How to attach proprietary system to Net-Snmp?

Hello Robert,
thanks for Your "helping Hand"!

> From: Robert Story <rstory@freesnmp.com>
> On Sat, 26 Feb 2005 20:18:55 +0100 Ekkehard wrote:
> What do you mean by 'tables could only hold one record'?

As I wrote, there a several different Subdevices, with very different=20
properties. The "One Row per Subdevice"-Approach will force me to drop al=
l=20
different properties from the devices into one (big) record.
Example:
One Device is a thermometer another is a humidity device. The themometer =
gives=20
degrees in Integers from -50 to +100 =B0C, the humidity device gives rela=
tive=20
percentage from 0 to 100 rel. humidity.
Assuming we have one thermometer with device ID 0 and one humidity device=
with=20
ID 1, the row and table looks like this
deviceNumber currentTemp currentHumidity
0 +20 n.a.
1 n.a. 60%
If I looks to my real devices the have *lots* of settings (Alarmranges,=20
trapenables, etc.) and we have *lots* of different devices so the row hav=
e to=20
be *very* long.
So the means 'tables could only hold one record'!


> Read over this entry in my FAQ, and see if you it helps.
> http://www.freesnmp.com/net-snmp/faq....html#multidev
"proxy" seems not a good solution, because OIDs are shared between differ=
ent=20
subdevices.
"table" see below.
"context" seems to be the best suggestion, I have to learn how this stuff=
=20
could used.


> Another idea would be to do something similar to the host resources mib=
=2E One
> table defines all the rows with their types, and each specific type has=
it's
> own table for type specific parameters.

Nice Idea.
One table for temperatures, one for humidity, each holding device ID and =
the=20
value. This will - on the opposite - spread all values from one device ov=
er=20
the whole mib, making collecting the data from one subdevice very hard.

>=20
> -- Robert Story; NET-SNMP Junkie
Thanks for Your help!
Best regards
Ekkehard



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