|
Question(s): 9/7 SOURCE: ITU-T
Study Group 7 TITLE: ASN.1:1997
as the notation for SMIng _____________ COMMUNICATION TO: IETF / SMIng working group FOR: Information APPROVAL: ITU-T Study Group 7 CONTACT: Olivier Dubuisson Tel: +33 2 96 05 38 50 France Télécom R&D Fax: +33 2 96 05 39 45 France Email: Olivier.Dubuisson@francetelecom.com |
ITU-T SG 7 Q.9/7 has carefully studied the requirements for the
notation to be used to specify SMIng and concludes that it has an available
notation that in our understanding fully meets those requirements (even the
optional ones). This is a mature notation which is well supported by a number
of commercial and public domain tools.
Q.9/7 experts plan to attend the next IETF meeting to be held in
Salt Lake City, 9-14 December 2001. We also invite discussion at any upcoming
meeting of Q.9/7 (Q.12/17 from September 17 onwards), and will present the
notation and discuss with the SMIng group any modifications that may result
from open issues that could not directly be identified from the requirements
document.
ITU-T sees many advantages in the use of an existing and mature
notation, both technically and from the point of view of extending ITU-T and
IETF collaboration.
The primary specification of the notation and its semantics would
be by using the Information Object Class notation and its WITH SYNTAX clause
from the 1997 edition of ASN.1 (now available free on the web, see http://asn1.elibel/tm.fr/standards).
This primary definition can be readily mapped to an ABNF specification of the
syntax, which could be included as an Annex to the SMIng RFC.
The SMIng group will recognize that the Information Object Class
notation was introduced in 1994 to replace the ASN.1 Macro notation (which was
found to have many flaws) and has many similarities with that notation. Thus it
will be familiar to those who know the existing SMI.