Hi,
Right - ASN.1 doesn't allow discontinuous integer ranges.
The DESCRIPTION clause of this textual convention could
disallow the length of '1', but it's not important to do,
I think.
With respect to max length of 60, the public MIBs that
I'm aware of often use 63 octets and the rest use a
longer max length (except for the admittedly flawed
legacy objects in Printer MIB v2, RFC 3805 - I tried
to fix them before we published RFC 3805, but got shot
down by my co-editors).
Cheers,
- Ira
Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Blue Roof Music / High North Inc
PO Box 221 Grand Marais, MI 49839
phone: +1-906-494-2434
email: imcdonald(_at_)sharplabs(_dot_)com
-----Original Message-----
From: John Cowan [mailto:cowan(_at_)ccil(_dot_)org]
Sent: Saturday, February 10, 2007 1:16 PM
To: Doug Ewell
Cc: ietf-languages(_at_)iana(_dot_)org; LTRU Working Group;
ietf(_at_)ietf(_dot_)org
Subject: [Ltru] Re: Last Call: draft-mcwalter-langtag-mib (Language Tag
MIB) to Proposed Standard
Doug Ewell scripsit:
Since tags of 1 character are never well-formed, I suggest that the
definition:
SYNTAX OCTET STRING (SIZE (0..60))
be amended to exclude the 1-character case. I assume that a zero-length
tag, while also not defined in RFC 4646, was included in the I-D to
allow the special case of "no tag."
AFAIK, ASN.1 does not allow sizes like (0, 2..60). I wouldn't even
bother with this change.
--
John Cowan cowan(_at_)ccil(_dot_)org http://ccil.org/~cowan
Rather than making ill-conceived suggestions for improvement based on
uninformed guesses about established conventions in a field of study with
which familiarity is limited, it is sometimes better to stick to merely
observing the usage and listening to the explanations offered, inserting
only questions as needed to fill in gaps in understanding. --Peter Constable
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