Re: defining an OID for a scalar Instance

[Harrie Hazewinkel <harrie@lisanza.net>]

Hi,

Wijnen, Bert (Bert) wrote:
> The IPSEC-SPD-MIB has this:
>
>    spdTrueFilter OBJECT-TYPE
>            SYNTAX      Integer32
>            MAX-ACCESS  read-only
>            STATUS      current
>            DESCRIPTION
>                "This scalar indicates a (automatic) true result for
>                 a filter.  I.e. this is a filter that is always
>                 true, useful for adding as a default filter for a
>                 default action or a set of actions."
>            ::= { spdStaticFilters 1 }
>
>    spdTrueFilterInstance OBJECT IDENTIFIER ::= { spdTrueFilter 0 }
>
> And SMICng says that this is an ERROR:
>     E: f(ipsec-spd.mi2), (951,4) Item "spdTrueFilter" must not have items registered
>     below it
>
> We (MIB experts) have also used it in the DISMAN event MIB:
>
>     sysUpTimeInstance OBJECT IDENTIFIER ::= { sysUpTime 0 }
>
> So do we agree to call the ERROR msg from SMICng a FALSE msg?

I would say yes.

The type 'OBJECT IDENTIFIER' more as the 'glue' to make
the naming tree. I beleive this is the spirit of this type
in ASN.1 and from SMI we do not add extra semantics to it.
If I remember it well, the DIFF-SERV-MIB has something
similar also.


--
Harrie

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