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Editor's note: Minutes received 4/6/93. These minutes have not been edited
and the attendee list has not been appended.
Reported by Mark S. Lewis
MODEMMGT - Modem Management with SNMP
Birds of a Feather (BOF) Session
March 30, 1993 - Columbus Ohio
MINUTES OF SESSION
------------------
There were approximately 25 attendees made up of modem manufacturers,
SNMP developers, and modem users/service providers. The BOF was begun
with a discussion of the need to manage modems by users and service
providers. We explored the need to monitor and control modems, as
well as account for their usage. It was clear that the ability to
change the configuration of modems was important. It was suggested
that other devices like fax, DSU/CSUs, and perhaps terminal adapters
should be treated similarly. Most agreed that we should be as
inclusive as possible in writing a 'modem' MIB.
+-----------+-----------+
| Character | PPP |
|-----------+-----------|
| RS-232-Like |
|-----------------------|
| Modem |
+-----------------------+
MIB Hierarchy
We briefly discussed relevant MIBs including the RS-232-Like,
Character, PPP, and DS1/E1 (RFC 1406). Enterprise MIB extensions were
briefly considered including those from Telebit and US Robotics. A
short presentation was made by Les Brown (TIA TR-30.4) on a Draft
Recommendation V.im; Management Information Model for V-Series DCE's.
It was pointed out that some vendors had looked at this draft and had
implemented a subset of it. This may be the essential portion of what
seems to be a very comprehensive definition in the draft.
Some raised issue about which problems we are trying to solve. Others
suggested a clear statement about the problems would provide helpful
direction. Some questioned the model being considered: whether is was
geared for a stand-alone device or a rack installation. It was agreed
that we should use a rack model which supports multiple devices
through tables in a MIB rather than single objects.
There was a question about whether or not it was important to produce
a general modem MIB. It was suggested that some want extensive
enterprise MIB support from their particular vendor. Some of the SNMP
management station developers said they would not be willing to add
support for each vendors enterprise MIB extensions, but would be
willing to add support for a general modem MIB. It was agreed a
general modem MIB was necessary.
There was discussion about how many object might be included in a
modem MIB. The V.im draft seemed to define 200-250 objects. Some
thought it would be good to limit the modem MIB to around 100 objects.
As a comparison, the DS1/E1 MIB (RFC 1406) defines approximately that
many objects.
Given the base of relevant work, the BOF Chair proposed that an IETF
Working Group be formed to work in conjunction with TR-30.4 to produce
a joint standard modem MIB. A proposed charter was presented and
discussed. There was discussion about the different cultures of the
two groups. There was some skepticism that the two groups could
produce a joint document. The Chair proposed that discussions should
be carried-out through e-mail and periodic face-to-face meetings.
A proposed schedule was discussed which set certain goals. Basically,
the joint document would be completed in 1993. This means that the
joint group would produce at least 2 drafts, which would be reviewed
face-to-face at least twice. Presumably, there would be extensive
e-mail discussion in the interim. Most considered this an aggressive
schedule but thought it was a good objective.
The BOF concluded with agreement that an IETF Working Group should be
organized to pursue these goals. The Chair agreed to update the
proposed charter and submit it to the acting Management Area Director.
He also agreed to setup the required mailing list, and ftp repository
of relevant MIBs and documents.