Re: vacmViewTreeFamilySubtree missing SIZE restriction

Hi,

I read it wrong, ODJECT IDENTIFIER can be refined but I am not sure
if a size contraint must be present. The MIB compiler I am using does not
complain this.

regards
Xiang

On Mon, 13 Jan 2003, Xiang Li wrote:

> 
> Hi, 
> 
> In rfc2578
> 
> 9.  Refined Syntax
> 
>    Some macros have clauses which allows syntax to be refined,
>    specifically: the SYNTAX clause of the OBJECT-TYPE macro, and the
>    SYNTAX/WRITE-SYNTAX clauses of the MODULE-COMPLIANCE and AGENT-
>    CAPABILITIES macros [2].  However, not all refinements of syntax are
>    appropriate.  In particular, the object's primitive or application
>    type must not be changed.
> 
>    Further, the following restrictions apply:
> 
>                           Restrictions to Refinement of
>      object syntax         range   enumeration     size
>      -----------------     -----   -----------     ----
>                INTEGER      (1)        (2)           -
>              Integer32      (1)         -            -
>             Unsigned32      (1)         -            -
>           OCTET STRING       -          -           (3)
> 
>      OBJECT IDENTIFIER       -          -            -
> 
> 
> ***Note:  OBJECT IDENTIFIER should not be refined...***
> 
> 
> 
>  No other types of refinements can be specified in the SYNTAX clause.
>    However, the DESCRIPTION clause is available to specify additional
>    restrictions which can not be expressed in the SYNTAX clause.
>    Further details on (and examples of) sub-typing are provided in
>    Appendix A.
> 
> 
> On Sat, 11 Jan 2003, Michael Kirkham wrote:
> 
> > 
> > Hi, all.  My MIB compiler work picked upon the following error in RFC
> > 3415, which is also present in 2575 and 2275:
> > 
> > rfc3415.mib [SNMP-VIEW-BASED-ACM-MIB:vacmViewTreeFamilyEntry] : error :
> > INDEX object 'vacmViewTreeFamilySubtree' value may exceed maximum of 128
> > subidentifiers for OBJECT IDENTIFIER length.
> > 
> > The RFC 3415 definition is:
> > 
> > vacmViewTreeFamilySubtree OBJECT-TYPE
> >     SYNTAX       OBJECT IDENTIFIER
> >     MAX-ACCESS   not-accessible
> >     STATUS       current
> >     DESCRIPTION "The MIB subtree which when combined with the
> >                  corresponding instance of vacmViewTreeFamilyMask
> >                  defines a family of view subtrees.
> >                 "
> >     ::= { vacmViewTreeFamilyEntry 2
> > 
> > I believe it should be:
> > 
> >     SYNTAX       OBJECT IDENTIFIER (SIZE(2..84))
> > 
> > --
> > Michael Kirkham
> > www.muonics.com
> > 
> 
> 

-- 
      ; Regards
             --Xiang Li--