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upsmib-minutes-92jul.txt
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Editor's Note: Minutes received 8/8
CURRENT_MEETING_REPORT_
Reported by Bob Stewart/Xyplex
Minutes of the Uninterruptible Power Supply BOF (UPSMIB)
Agenda
o To identify the scope of the problem of monitoring and controlling
uninterruptible power supplies;
o To discuss an Internet Draft containing an initial proposal for
such a MIB, and
o To assess the interest and commitment towards ongoing work,
including the possibility of creating a Working Group to prepare
and advance proposals for standardization in this area. If there
is sufficient interest and commitment, the Working Group Charter
and timetable will be discussed.
For this meeting, Jeff Case presided and Bob Stewart recorded. The
meeting was well-attended, about 30 people, with representatives of
about 10 UPS vendors, many becoming involved in the Internet and the
IETF for the first time. After considerable discussion and review of a
proposal, the meeting decided to request startup of a Working Group,
with most of the work being done via a mailing list.
Goal
Efforts to make uninterruptible power supplies to be monitorable and
controllable via the Internet Standard Management Framework have already
begun. In the past, when MIB standardization has trailed product
development, as it did for terminal servers, intelligent repeaters, and
MAC bridges, users have been faced with the difficulties associated with
the unnecessary proliferation of similar, but different,
enterprise-specific (vendor) MIBs. As a result, it is desirable to
begin standardization efforts as soon as possible.
A draft document has been prepared as an introduction to the problem.
It states:
This memo defines an experimental portion of the Management
Information Base (MIB) for use with network management
protocols in TCP/IP-based internets. In particular, it defines
objects for managing uninterruptible power supply (UPS)
systems.
1
The document which is in the Internet-Drafts Directory, as previously
announced, is a new version of the memo which contains incorporates the
suggestions received by the authors since the initial document was
published, plus one new group, the upsTruck group.
Jeff presented the organizations and procedures that oversee Internet
Standard Development.
o Mailing list discussion a bit of a problem due to lack of mail
access by UPS vendors.
o Stressed structure above IAB, current and changing.
o All-volunteer lower structure.
Jeff stated goals.
o Decide whether to proceed.
o Identify sufficiently interesting set of common attributes with no
optional objects. The answer to a concern over response to
unimplemented objects was that groups are the unit of conformance
for interoperability.
Jeff presented highlights of the strawman proposal, which caused several
points of discussion.
o Volts and Minutes are too coarse, tenths of volts and seconds
better.
o Concern over debating individual objects deferred for later
detailed assessment of proposal.
o Traps are to bin in a separate document to ease passage of MIB.
o A UPS need not perform multiple tests simultaneously but may if it
can.
o It is implementation specific whether configuration options cause
changes.
o SNMP proxy mechanism preferred for handling multiple UPSes, rather
than table with index.
o A community string or party defines an agent.
o Fielded systems are basic and advanced, MIB represents advanced,
suggest organizing MIB accordingly. Agreed too much mandatory for
less expensive devices. Agree with option by Group for predictable
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functions. This is a marketing issue. This discussion should be
deferred for formal Working Group. We all want one standard.
We discussed whether we do indeed want to form a Working Group.
o Charter 1 or 2 documents to monitor and possibly control UPS, low
or high end, existing and future UPS technology.
o Consider application to similar embedded systems such as power
systems or power conditioners.
o Prefer not to encumber UPS needs.
o There was considerable concern about voting and influence. Process
is by consensus without company dominance or simple votes. The
major need is to define the problem and rally around a Standard.
SNMP itself was such a compromise.
o We need an editor and email communication. MCI, Sprint,
Compuserve, etc., provide mail service, and some do not charge for
reading mail.
o Arbitration is informal, by consensus and compromise.
o Credit is author's on front and sometimes individuals in
acknowledgements section, with name and affiliation.
o Mail is easier than news group.
o Publicity is acceptable as long as not claiming standard before
complete. Internet Drafts should not be referenced in procurement
or product literature, but RFCs may.
o Mailing list administrative address is upsmib-request@cs.utk.edu.
o We plan to have a document by the next IETF, final by following.
The next IETF conflicts with Comdex, a big problem. Suggested Las
Vegas meeting that vendors attend is a problem for Chairs.
One of the vendors (APC) presented an alternative proposal.
o MIB being implemented but needs to consider strawman proposal.
o Proprietary features were removed for presentation. Remainder was
divided into basic and advanced to maximize compatibility with past
and future systems.
3
o Extension objects point to further MIB, assuming it is similarly
structure. A single object is preferred and sufficient.
Several general issues were discussed before adjournment at 10:20.
o Someone suggested a breaker group. That varies considerable across
implementations. It could be handled by alarm group in strawman.
o We looked at several objects in strawman and general consensus was
they are implementable.
o Although one of the proposers, Emerson, does not implement
everything in the strawman, it was proposed for value to the
industry.
o On the issue of credit for draft and RFC the suggestion was to
limit it to SNMP Research. Suggested that Emerson receive
consideration as catalyst. Deferred to private discussions and
mailing list.
o Suggested September meeting central in U.S. deferred to mailing
list.
Attendees
Richard Baxter
Tom Brennan brennan@exide.com
Jeffrey Case case@cs.utk.edu
James Davin davin@thumper.bellcore.com
Michael Davison davison@cs.utk.edu
Roger Draper rdraper@cerf.net
Bill Elliot
David Engel david@ods.com
David Fencl
Owen Gallagher oweng@jjmhome.uucp
Theodore Greene
Kenneth Key key@cs.utk.edu
Sharon Lewis lewis@cs.utk.edu
Les Matheson matheson@cerf.net
Paul Moran Paul_Moran@3com.com
David Perkins dperkins@synoptics.com
Marshall Rose mrose@dbc.mtview.ca.us
Koichiro Seto seto@hitachi-cable.co.jp
Houman Shafiezadeh houman@exide.com
Timon Sloane peernet!timon@uunet.uu.net
Einar Stefferud stef@nma.com
Bob Stewart rlstewart@eng.xyplex.com
Adam Stolinski
Ray Wasson
4
Brian Young
5