Re: [IETFMIBS] Enumerations with underscores

["Eduardo Cardona" <e.cardona at CableLabs.com>]

Thanks Mark, 
That explains the issue clear. 

Eduardo

-----Original Message-----
From: Mark Ellison [mailto:mark at ellisonsoftware.com] 
Sent: Thursday, April 30, 2009 7:41 PM
To: Eduardo Cardona
Cc: ietfmibs at ietf.org
Subject: Re: [IETFMIBS] Enumerations with underscores

Hi Eduardo,

On 04/30/2009 09:03 PM, Eduardo Cardona wrote:
> I couldn't find a restriction in RFC 2578, or a recommendation
guideline
> in RFC 4181 that prohibits the use of underscores in integer
enumerated
> values labels. 
> smilint 0.4.3 complains and NET-SNMP 5.1.x (aka. libsmi) complained
> about the existence of underscores in an enumeration
>
> Is there any clarification in some place about underscores usage?  
>
>   
In RFC 2578 on page 21, section 7.1.1,  "Integer32 and INTEGER", the 
last paragraph states:

       Finally, a label for a named-number enumeration must consist of
one
       or more letters or digits, up to a maximum of 64 characters, and
the
       initial character must be a lower-case letter.  (However, labels
       longer than 32 characters are not recommended.)  Note that
hyphens
       are not allowed by this specification (except for use by
information
       modules converted from SMIv1 which did allow hyphens).

Hyphens are specifically addressed because they were allowed in SMIv1.  
Now, while an underscore is not a hyphen it is also not a 'letter' or a 
'digit', so your SMIv2 syntax compilers are going to complain.
> Thanks for any suggestion
>
> Eduardo
>   
HTH,

Mark
http://EllisonSoftware.com/