2009/1/12 Larry Brown <[email protected]>:
> In the description of some of the enhancements from v1 to v2 it lists
> the ability to include "bit strings".

I presume you are referring to the pseudo-type BITS.
This is effectively a set of enumerations  (i.e. zero or more
of a collection of named values).



>          Does this mean that a value held
> under a particular OID could be a binary blob

That has always been supported, using the OCTET STRING type.
Note that OCTET STRING is inherently a binary type - it's not
limited to printable strings (although there are several TCs
which do restrict values to printable strings).


> And if it is, is there some limit to the size of such a file?

>From RFC 2578:

SimpleSyntax ::=
    CHOICE {

        -- OCTET STRINGs with a more restrictive size
        -- may also be used
        string-value
            OCTET STRING (SIZE (0..65535)),
   }

and from section 7.1.2

7.1.2.  OCTET STRING

   The OCTET STRING type represents arbitrary binary or textual data.
   Although the SMI-specified size limitation for this type is 65535
   octets, MIB designers should realize that there may be implementation
   and interoperability limitations for sizes in excess of 255 octets.


Dave

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