Re: Methods in the NIM requirements

["John Strassner" <jstrassn@cisco.com>]

??? An information model is independent of any specific type
of repository. What does the directory have to do with
anything?

regards,
John
----- Original Message -----
From: "Weiss, Walter" <WWeiss@lucentctc.com>
To: <nim@ops.ietf.org>
Sent: Thursday, April 20, 2000 11:35 PM
Subject: RE: Methods in the NIM requirements


> I think Keith's point is accurate (and I phrased my point
poorly), SNMP
> assumes a memory map model. Therefore, the protocol *and*
the data
> structures assume an interactive relationship with the
device (a "go" in
> Andrea's terms). But I think we are refining the
parameters of the question
> without discussing the question directly. If the NIM model
implies a "go"
> semantic, how is the model applicable to the directory. If
I have a method
> for reboot that means do it now, how do I represent the
current state
> (rebooting/(re)initializing/unavailable) of the machine
in a directory.
> "Go" implies real-time semantics, yet we all know that
directories are not
> well suited for real-time status representations.
>
> regards,
>
> -Walter
>
> > -----Original Message-----
> > From: remoore@us.ibm.com [mailto:remoore@us.ibm.com]
> > Sent: Wednesday, April 19, 2000 7:40 AM
> > To: Weiss, Walter
> > Cc: nim@ops.ietf.org
> > Subject: RE: Methods in the NIM requirements
> >
> >
> >
> >
> > Walter,
> >
> > You've said this twice now:
> >
> > >Should the semantics of "go" be in the model? If we
look at many
> > >of the models out there today, all have "go" semantics.
However,
> > >most are in the protocol itself. The SET command is
part of SNMP,
> > >not the MIB.
> >
> > >In contrast, when the model is applied to a management
protocol
> > >(SNMP), actions are implied by the protocol (GETs and
SETs).
> >
> > But it isn't true.  The semantics of SNMP's SET command
itself
> > are simply changing the value of a MIB object
(attribute).  If an
> > SNMP SET is going to have side effects, these *must* be
specified
> > in the MIB definition of the object being SET.
> >
> > The *protocol* operation that embodies the concept of an
action is
> > (not surprisingly) CMIS/CMIP's M-ACTION operation.
> >
> >
> > Regards,
> > Bob
> >
> > Bob Moore
> > IBM Networking Software
> > +1-919-254-4436
> > remoore@us.ibm.com
> >
> >
> >
>
>
>