So what does that mean to us?? It is ridiculous to have an obsolete OID
in the MIB because we changed our mind during development.
Mike Fenelon
Microsoft
________________________________
From: Wijnen, Bert (Bert) [mailto:bwijnen at lucent.com]
Sent: Thursday, July 28, 2005 11:20 AM
To: Mike Fenelon; McDonald, Ira; thrasher at lexmark.com
Cc: pmp at pwg.org
Subject: RE: PMP> [delete ppmPrinterEnabled] Restructured Port MIB (18
Jul y 2005)
It does not matter how long the OID has been out.
What matters is if it was formally assigned (by whoever controls
assignments in
enterprises pwg(2699) mibs(1)
and it seems (from the doc/mic that was posted) that ppmMIB did get and
OID
assigned, namely
enterprises pwg(2699) mibs(1) ppmMIB(2)
And so I claim it has been published and so in my view you would not
re-order OIDs.
There are sound technical reasons why that is the case, read
RFC2579-2580 for that.
If you had like an experimental tree somewhere under pwg, then you could
do it
there if you made VERY CLEAR statements that those are all for
experimental
and/or pre-release testing and so no-one should assume that OIDs in
there are
ever going to be permanent. You would still (in my view) re-root under
some other
branch at the top level of the ppmMIB module if you started reordering
OIDs.
Just trying to explain and help.
Bert
-----Original Message-----
From: Mike Fenelon [mailto:mfenelon at windows.microsoft.com]
Sent: Thursday, July 28, 2005 17:44
To: Wijnen, Bert (Bert); McDonald, Ira; thrasher at lexmark.com
Cc: pmp at pwg.org
Subject: RE: PMP> [delete ppmPrinterEnabled] Restructured Port
MIB (18 Jul y 2005)
The oid was only out for a few days. I think it would be much
more confusing to have a hole for something we took out of a draft, than
to simply move everything up after deleting the oid.
Mike Fenelon
Microsoft
________________________________
From: pmp-owner at pwg.org [mailto:pmp-owner at pwg.org] On Behalf Of
Wijnen, Bert (Bert)
Sent: Thursday, July 28, 2005 8:28 AM
To: McDonald, Ira; 'thrasher at lexmark.com'
Cc: 'pmp at pwg.org'
Subject: RE: PMP> [delete ppmPrinterEnabled] Restructured Port
MIB (18 Jul y 2005)
I have not followed detailed discussion on this... but
- SMI rules state that one a document with a MIB is published,
you can NEVER
re-use an OID for some other purpose. All you can do is
obsolete the
old object and add a new one.
- In IETF, when we just have internet drafts, we allow people to
re-use an OID
(supposedly no-one has used the OID while at internet draft
state, besides.
such MIB modules normally have a
::= { mib-2 xxxx } -- xxxx to be assigned by IANA
so there is no definite complete OID, and people who want to
do early implementations
fill in a number under their enterprise prerelease branch or
so.
the final xxxx gets assigned by IANA upon document approval
(right before RFC
publication) and so no OID changes are allowed anymore.
See the SMI documents for the rationale.
- But once published as RFC, we never re-use an OID, not even
when a new rev is
being published as a intrenet-draft.
Hope this helps,
Bert
-----Original Message-----
From: pmp-owner at pwg.org [mailto:pmp-owner at pwg.org]On
Behalf Of McDonald, Ira
Sent: Thursday, July 28, 2005 16:59
To: 'thrasher at lexmark.com'; McDonald, Ira
Cc: 'pmp at pwg.org'
Subject: RE: PMP> [delete ppmPrinterEnabled]
Restructured Port MIB (18 Jul y 2005)
Hi Jerry,
There's no such thing as a reserved no-access object,
but I'd be happy to leave
the hole (so that the OIDs don't change for any other
columnar objects). Would
you prefer that?
Note that ALL of the columnar objects were cleaned up
and reordered (and
renumbered) in this latest revision, so it would be hard
for there to be too many
implementations of the new OIDs already.
Others - shall I leave the hole and leave the other new
OID assignments stable?
Cheers,
- Ira
Ira McDonald (Musician / Software Architect)
Blue Roof Music / High North Inc
PO Box 221 Grand Marais, MI 49839
phone: +1-906-494-2434
email: imcdonald at sharplabs.com
-----Original Message-----
From: thrasher at lexmark.com
[mailto:thrasher at lexmark.com]
Sent: Thursday, July 28, 2005 10:33 AM
To: McDonald, Ira
Subject: RE: PMP> [delete ppmPrinterEnabled]
Restructured Port MIB (18 Jul y 2005)
Ira,
Are you just planning on creating a reserved
no-access object where ppmPortEnabled "used" to be, or are
you going to delete the entry and shift
everything else in the table up.??
Jerry
"McDonald, Ira" <imcdonald at sharplabs.com>
07/23/2005 01:56 PM
To: "McDonald, Ira" <imcdonald at sharplabs.com>,
"'thrasher at lexmark.com'" <thrasher at lexmark.com>
cc: "'pmp at pwg.org'" <pmp at pwg.org>,
"'Ron.Bergman at rpsa.ricoh.com'" <Ron.Bergman at rpsa.ricoh.com>
Subject: RE: PMP> [delete ppmPrinterEnabled] Restructured
Port MIB (18 Jul y 2005)
Hi,
Let's delete ppmPrinterEnabled, because the
'false' is redundant
with ppmPortEnabled of 'false' for all supported
ports. And
because otherwise, we must say "ignore
ppmPortEnabled of 'true'
for installation if ppmPrinterEnabled is
'false'". Which leads
me to agree that we should delete
ppmPrinterEnabled.
When a Printer is permanently removed from an
ENA interface,
the whole ppmPrinterTable row and all
subordinate rows in
ppmPortTable can just be deleted.
For 'ppmPortProtocolType' using
'PrtChannelTypeTC', we're working
to get 'unknown(2)' registered quickly with
IANA, so that we can
do the 'right thing' that Bert Wijnen pointed
out.
Cheers,
- Ira
Ira McDonald (Musician / Software Architect)
Blue Roof Music / High North Inc
PO Box 221 Grand Marais, MI 49839
phone: +1-906-494-2434
email: imcdonald at sharplabs.com
-----Original Message-----
From: McDonald, Ira
Sent: Friday, July 22, 2005 1:37 PM
To: 'thrasher at lexmark.com'; McDonald, Ira
Cc: pmp at pwg.org; Ron.Bergman at rpsa.ricoh.com
Subject: RE: PMP> Restructured Port MIB (18 July
2005)
Hi Jerry,
I agree that feedback from the clients
(Microsoft and Apple) on how they'd
like this to work would be helpful.
Remember, that a value of 'ppmPrinterIndex' must
NEVER be reassigned
to a different instance of a Printer at a later
date. While the MIB may
grow and shrink, the base 'ppmPrinterIndex'
should be immutably
associated with exactly one specific instance of
a Printer. This is both
correct MIB practice and required by the object
definition in the current
MIB draft.
Cheers,
- Ira
Ira McDonald (Musician / Software Architect)
Blue Roof Music / High North Inc
PO Box 221 Grand Marais, MI 49839
phone: +1-906-494-2434
email: imcdonald at sharplabs.com
-----Original Message-----
From: thrasher at lexmark.com
[mailto:thrasher at lexmark.com]
Sent: Friday, July 22, 2005 1:28 PM
To: McDonald, Ira
Cc: pmp at pwg.org; Ron.Bergman at rpsa.ricoh.com
Subject: RE: PMP> Restructured Port MIB (18 July
2005)
I would think that the usefullness of the
ppmPrinterEnabled for an
ENA would only be for the "transcient" case of
the plugging/unplugging
of the related printer. However at some point
(in the case that the printer
stays unplugged "permanently") the printer entry
and associated protocol
tables would be removed such that the the MIB
could grow and shrink
over time.....
For example, an ENA with a USB host interface
that supports up to
128 attached printers, In my opinion, shouldn't
need to have 128 printer
entries
in the MIB tables from first power on......only
the entries that have
detected (valid 1284ID)
printers etc. attached.....otherwise you'd end
up in most cases with 127
default printer entries
with associated port tables that don't actually
go anywhere.
Of course this behaviour is different from the
current TCPMON.ini file
which has static entries.......
I think maybe the clients should give guidance
on how they want it to work.
Jerry Thrasher
"McDonald, Ira" <imcdonald at sharplabs.com>
Sent by: pmp-owner at pwg.org
07/22/2005 12:13 PM
To: "'Bergman, Ron'"
<Ron.Bergman at rpsa.ricoh.com>, "McDonald,
Ira" <imcdonald at sharplabs.com>, "Wijnen, Bert
(Bert)" <bwijnen at lucent.com>,
pmp at pwg.org
cc:
Subject: RE: PMP> Restructured Port MIB
(18 July 2005)
Hi Ron,
If the Printer entry is deleted when an ENA
interface
is disconnected, then all the subordinate Port
entries
MUST be deleted too (because they are indexed by
the
object ppmPrinterIndex). This is ugly if the
local
printer is promptly plugged _back_ into the
interface.
If the Printer entry is left in place but _not_
clearly
marked 'disabled', then
ppmPrinterIEEE1284DeviceId,
ppmPrinterHrDeviceIndex and all the other
Printer
columnar objects must be reset (to default
values).
That's why the ppmPrinterEnabled object should
be kept.
The WG concensus was strong that ppmPortEnabled
was
required to keep the port list static (fixed
number
of ports for an interface). Therefore, I added
the
ppmPrinterEnabled object.
If others want ppmPrinterEnabled removed, would
they
please speak up soon?
Cheers,
- Ira
PS - Remember that this MIB is supposed to work
for
Network Spoolers too, where the concept of 'the
printer
is removed' is fuzzy. The 'printer' is just
some
configured downstream network printer that may
well
be administratively disabled _without_ removing
the
configuration at the Network Spooler.
Ira McDonald (Musician / Software Architect)
Blue Roof Music / High North Inc
PO Box 221 Grand Marais, MI 49839
phone: +1-906-494-2434
email: imcdonald at sharplabs.com
> -----Original Message-----
> From: Bergman, Ron
[mailto:Ron.Bergman at rpsa.ricoh.com]
> Sent: Thursday, July 21, 2005 8:24 PM
> To: McDonald, Ira; Wijnen, Bert (Bert);
pmp at pwg.org
> Subject: RE: PMP> Restructured Port MIB (18
July 2005)
>
>
> Ira,
>
> Base on my experience with ENAs, they do not
provide a feature to
> disable an output port unless the printer is
removed. Normally,
> this is to replace a worn-out unit or upgrade
a printer.
> In this case the old printer is gone forever.
So how does your
> "STATIC entries" handle this situation?
>
> Ron
>
> -----Original Message-----
> From: McDonald, Ira
[mailto:imcdonald at sharplabs.com]
> Sent: Wednesday, July 20, 2005 8:38 AM
> To: Bergman, Ron; McDonald, Ira; Wijnen, Bert
(Bert); pmp at pwg.org
> Subject: RE: PMP> Restructured Port MIB (18
July 2005)
>
>
> Hi Ron,
>
> Based on previous IPP experience, it will take
MONTHS to add one
> new enum to the PrtChannelTypeTC with IANA -
that would stop the
> Port Mon MIB dead in its tracks until it was
accepted by IANA.
>
> About ppmPrinterEnabled - same rationale as
ppmPortEnabled - keeps
> the number of Printer entries STATIC in an
implementation - lets
> the user see that the one Printer (i.e.,
hardward output interface)
> on an External Network Adapter should
presently be ignored.
>
> Remember that the Port Mon MIB MUST NOT depend
on either Host
> Resources or Printer MIB, by common concensus
- it may only
> AUGMENT them, if they are present.
>
> Cheers,
> - Ira
>
> Ira McDonald (Musician / Software Architect)
> Blue Roof Music / High North Inc
> PO Box 221 Grand Marais, MI 49839
> phone: +1-906-494-2434
> email: imcdonald at sharplabs.com
>
> > -----Original Message-----
> > From: Bergman, Ron
[mailto:Ron.Bergman at rpsa.ricoh.com]
> > Sent: Tuesday, July 19, 2005 7:40 PM
> > To: McDonald, Ira; Wijnen, Bert (Bert);
pmp at pwg.org
> > Subject: RE: PMP> Restructured Port MIB (18
July 2005)
> >
> >
> > Ira,
> >
> > I am not sure what value ppmPrinterEnabled
adds to the MIB.
> > This appears to be analogous to
> > On Line/Off Line. If I want to create a
driver for the
> > printer I don't care what the current
> > state is. That information is only
necessary when I am ready
> > to print and then this MIB is
> > not used.
> >
> > I believe that Bert has a valid point in
using
> > ppmPortProtocolType. It is not a major
effort
> > to add unknown(2) to the IANA registrations.
> >
> > Otherwise, the changes are inline with our
discussions
> > following the test.
> >
> > Ron
> >
> > -----Original Message-----
> > From: pmp-owner at pwg.org
[mailto:pmp-owner at pwg.org]On Behalf
> > Of McDonald,
> > Ira
> > Sent: Tuesday, July 19, 2005 9:46 AM
> > To: 'Wijnen, Bert (Bert)'; McDonald, Ira;
'pmp at pwg.org'
> > Subject: RE: PMP> Restructured Port MIB (18
July 2005)
> >
> >
> > Hi Bert,
> >
> > Thanks for your quick feedback. My replies
inline below.
> >
> > Cheers,
> > - Ira
> >
> >
> > Ira McDonald (Musician / Software Architect)
> > Blue Roof Music / High North Inc
> > PO Box 221 Grand Marais, MI 49839
> > phone: +1-906-494-2434
> > email: imcdonald at sharplabs.com
> >
> > > -----Original Message-----
> > > From: Wijnen, Bert (Bert)
[mailto:bwijnen at lucent.com]
> > > Sent: Tuesday, July 19, 2005 9:08 AM
> > > To: McDonald, Ira; 'pmp at pwg.org'
> > > Subject: RE: PMP> Restructured Port MIB
(18 July 2005)
> > >
> > >
> > > Only did a very very quick scan.
> > >
> > > Comments.
> > >
> > > - ppmPortProtocolTargetPort OBJECT-TYPE
> > > SYNTAX Integer32 (0..65535)
> > > I propose that you use InetPortNumber TC
from RFC4001
> > >
> >
> > Won't work, because this port is not limited
to Internet Suite
> > protocols. The 'service:' URI in
ppmPortServiceNameOrURI may
> > also be for non-Internet suites (AppleTalk,
NetWare, etc.).
> >
> > I'll correct the DESCRIPTION in the MIB and
make clear that
> > (as with the Printer MIB) ports/channels may
be from multiple
> > protocol suites.
> >
> >
> > > - ppmPortProtocolType OBJECT-TYPE
> > > SYNTAX Integer32 (0..2147483647)
> > >
> > > WHy not use TC PrtChannelTypeTC as the
SYNTAX?
> > > I do see that you want to use zero
(meaning not supported).
> > > But maybe better is to use none(1) in
that case, or maybe
> > > adding an enumeration to the TC of
notSupported(xx) ??
> > > It is now an IANA-maintained TC, so it
should not be that
> > > difficult to get a label added.
> > >
> >
> > Won't work. PrtChannelTypeTC currently only
defines 'other(1)'
> > and (foolishly) does NOT define 'unknown(2)'
(unlike every other
> > textual convention in the Printer MIB).
Because the Printer MIB
> > v2 still doesn't define DEFVAL clauses for
most objects, this
> > oversight has not surfaced before. We could
register 'unknown(2)'
> > with IANA, but _not_ fast enough (because
this MIB's going into OS
> > and printer vendor products right now).
> >
> >
> > > - ppmPortPrtChannelIndex has a reference
to RFC1213, while I
> > > think I would reather reference RFC2863
(the current IF-MIB)
> > >
> > > Bert
> > >
> >
> > Agreed. My mistake from the old Printer MIB
(RFC 1759).
> >
> > I'll correct the references in the MIB.
> > - Ira
> >
>
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