[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

disman MIB Followup on gmpls-alarm-spec-



Tom, (Randy)

Thank you for providing this input. What we're looking for is a reference that provides enumerated values for alarms. The ITU specs that we found all provide text strings, which is what we're trying to avoid. It seems that the disman MIB provides exactly what we're looking for.

Please let us know if our intended use of the values defined in the MIB makes sense from your (disman WG's) perspective, or if you recommend an alternate approach.

Thank you,
Lou

PS The text in the new rev (submitted today) of the draft reads:
[from: http://labn.net/docs/draft-berger-ccamp-gmpls-alarm-spec-01.txt]
3.1.3. Error Codes and Values

   The Error Codes and Values used in ALARM_SPEC objects are the same as
   those used in ERROR_SPEC objects.  New Error Code values for use with
   both ERROR_SPEC and ALARM_SPEC objects may be assigned to support
   alarm types defined by other standards.

   In this document we define one new Error Code.  The Error Code uses
   the value TBA (by IANA) and is referred to as "Alarms".  The values
   used in the Error Values field are the same as the values used for
   IANAItuProbableCause in the Alarm MIB [ALARM-MIB].

The error values field is carried in an object with the format:
[from: rfc3473]
    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |            Length             | Class-Num (6) | C-Type (3)    |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |                     IPv4 Error Node Address                   |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |     Flags     |   Error Code  |          Error Value          |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |                                                               |
   ~                              TLVs                             ~
   |                                                               |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+



At 10:20 AM 11/19/2003, Tom Petch wrote:
FYI


As a member of the disman WG, I have followed the development of the alarm mib,
currently draft-ietf-disman-alarm-mib-15.txt, over some years and this has
included formal liaison with SG4 and some contact with SG15 over such issues as
who owns the code points and who can define them. SG4 have expressed
satisfaction with the way in which the liaison with disman WG has worked (as on
the IETF web site).


But

1) not knowing the working procedures of the ITU, I don't know if the agreement
with disman extends to other IETF WG - the wording suggests not to me.


2) the alarm mib is currently under debate between authors and WG chair with a
list of some 80 issues being resolved; the most difficult to resolve appear IMO
to be the ones relating to the existence of the ITU alarm table as an
augmentation of the basic disman alarm table (and perhaps IMHO the lack of
suitable features in SMIv2). The alarm mib is complex, not one I would expect
people to be able to dip into and readily extract a part thereof.


3) I have lost track of the start of this thread and just what it was that this,
ccamp, WG
wanted to include in what (and my Acrobat viewer renders the text of the bullet
points in AlarmSpec as black blobs of varying size:-(! But whatever it is, I
suggest you contact the
disman chair, randy presuhn, to clarify the niceties of any interaction with the
output of disman, whatever form that finally takes. It may be that M.3100
related material should be in a common MIB module and not included in the alarm
mib because of issues of future updates and cross references from multiple WGs..


I think this is known as cross-functional review:-)

Tom Petch


-----Original Message----- From: Wijnen, Bert (Bert) <bwijnen@lucent.com> To: Brungard, Deborah A, ALABS <dbrungard@att.com>; Wijnen, Bert (Bert) <bwijnen@lucent.com>; Adrian Farrel <adrian@olddog.co.uk>; Lou Berger <lberger@movaz.com> Cc: ccamp@ops.ietf.org <ccamp@ops.ietf.org> Date: 18 November 2003 23:10 Subject: RE: Taking to the list:draft-berger-ccamp-gmpls-alarm-spec-00.txt


>the disman mib has enumerations I believe! > >Thanks, >Bert > >> -----Original Message----- >> From: Brungard, Deborah A, ALABS [mailto:dbrungard@att.com] >> Sent: dinsdag 18 november 2003 23:06 >> To: Wijnen, Bert (Bert); Adrian Farrel; Lou Berger >> Cc: ccamp@ops.ietf.org >> Subject: RE: Taking to the >> list:draft-berger-ccamp-gmpls-alarm-spec-00.txt >> >> >> Thanks Bert. >> >> M.3100 provides the generic information model, X.733 and >> X.736 define OSI generics pointing to X.721, and X.721 >> provides abstract syntax. We were looking for an enumeration >> to use vs. needing to support abstract syntax strings in >> signaling. Any suggestions are welcome. >> Deborah >> >> -----Original Message----- >> From: Wijnen, Bert (Bert) [mailto:bwijnen@lucent.com] >> Sent: Tuesday, November 11, 2003 11:46 AM >> To: Adrian Farrel; Lou Berger >> Cc: ccamp@ops.ietf.org >> Subject: RE: Taking to the >> list:draft-berger-ccamp-gmpls-alarm-spec-00.txt >> >> >> Things to potentially look at: >> >> draft-ietf-disman-alarm-mib-15.txt >> >> [M.3100] ITU Recommendation M.3100, "Generic Network Information >> Model", 1995 >> >> [X.733] ITU Recommendation X.733, "Information Technology - Open >> Systems Interconnection - System Management: Alarm >> Reporting Function", 1992 >> >> [X.736] ITU Recommendation X.736, "Information Technology - Open >> Systems Interconnection - System Management: Security >> Alarm Reporting Function", 1992 >> >> Thanks, >> Bert >> >> > -----Original Message----- >> > From: Adrian Farrel [mailto:adrian@olddog.co.uk] >> > Sent: dinsdag 11 november 2003 17:28 >> > To: Lou Berger >> > Cc: ccamp@ops.ietf.org >> > Subject: Re: Taking to the >> > list:draft-berger-ccamp-gmpls-alarm-spec-00.txt >> > >> > >> > Lou, >> > >> > I believe the alarm reference was M.3100. >> > >> > Can someone confirm? >> > >> > Adrian >> > >> > >> > > In the morning's meeting the AD's asked to bring the >> proposed Alarm >> > > communication extension to "the list". For today's >> > presentation see: >> > > http://www.labn.net/docs/AlarmSpec00.pdf >> > > >> > > I believe the issues to be discussed are: >> > > 1) Is there general interest in this work? >> > > 2) Should the usage of new TLVs in Error_Spec be permitted? >> > > (We think there's some value, particularly with string >> > > and timestamp) >> > > 3) Are there good references for alarm code points? >> > > >> > > Thank, >> > > Lou (and co-authors) >> > >> > >> >