[mrtg] Re: Problem using mathematical expressions.

[Alex van den Bogaerdt]

On Fri, Nov 22, 2002 at 10:53:21AM +0000, Chris Mancuska wrote:


> With a bit of experimentation, I've found that mathematical expressions
> involving OIDs work for the expression BEFORE the & but not after, so
> 
> Target[atdc2_part1n2]: .1.3.6.1.2.1.25.2.3.1.6.1
> /.1.3.6.1.2.1.25.2.3.1.5.1&\
> .1.3.6.1.2.1.25.2.3.1.6.2:public at hostname:

Here you are -->dividing<-- a single OID.

> Works, but
> 
> Target[atdc2_part1n2]: .1.3.6.1.2.1.25.2.3.1.5.1&\
> .1.3.6.1.2.1.25.2.3.1.6.2 / .1.3.6.1.2.1.25.2.3.1.5.2:public at hostname:
> 
> Does not. Have I found a bug, or am I a little stupid? If so can someone
> please explain how stupid!

Here you are dividing -->by<-- a single OID.

You MUST use two OIDs. If you don't, it SHOULDn't work at all.  It seems
that it does work however you end up with a zero.  Division by zero.

Alex

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