PWG> SC topic - no requirements in Counter Spec or Port MIB

PWG> SC topic - no requirements in Counter Spec or Port MIB

PWG> SC topic - no requirements in Counter Spec or Port MIB

McDonald, Ira imcdonald at sharplabs.com
Mon May 23 17:41:41 EDT 2005


Hi,

I halfway agree with Jerry below.

I think it's possible to write pretty terse requirements
for the Port Mon MIB (because it has a small, focused
purpose in life).

But I tend to believe that the Counter spec needs more than
"a few paragraphs".  For most specs (including PWG ones),
we have free-standing requirements documents that include
realistic use cases and detailed requirements derived from
those use cases.  In the absence of WIMS (and certainly it
can't be referenced at all by the current Counter spec),
what conceivable use case is there for abstract counters?
Without any concrete mappings, the counters can't even be 
transmitted.  

There are three obvious use cases for counters:
(1) Monitoring basic network element health for operators;
(2) Monitoring usage and consumption for field service;
(3) Monitoring usage and consumption for billing/accounting.

Doing the first without strong mutual authentication is unwise,
but often done today internal to enterprise networks with
SNMPv1/v2 MIBs.

Doing the second without strong mutual authentication is likely
to lead to service contract disputes.

Doing the third without strong mutual authentication is simply
out of the question - unverifiable billing info is garbage.

That's not exhaustive, but _none_ of that is addressed in the
current Counter spec.

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: owner-pwg at pwg.org [mailto:owner-pwg at pwg.org]On Behalf Of
thrasher at lexmark.com
Sent: Monday, May 23, 2005 3:55 PM
To: pwg at pwg.org
Subject: Re: PWG> SC topic - no requirements in Counter Spec or Port MIB



I would think that if it's really that hard to put down into words the 
the problems being solved (and what's required to solve these 
problems), then the resulting work product is probably not worth 
of being standardized in the first place. 

In the case of the PortMon MIB it should be pretty easy to 
list what the problem is with respect to the configuration of a network
printer 
port on the client side and the installation of an appropriate printer
driver, and 
to create a bulleted list of what needs to be part of the MIB to enable
this. 

In the case of the Counter Spec. it should also be fairly straightforward to

create a couple of paragraphs explaining what needs to be counted and 
why as far as the need for billing/fleet management metrics. 

I don't see this as a failure of the Process 2.0 since this was required in
the 
original PWG Process document, I see it more as "our" failure to follow it. 

JT 


"McDonald, Ira" <imcdonald at sharplabs.com> 
Sent by: owner-pwg at pwg.org 
05/23/2005 03:19 PM 
        
        To:        "'pwg at pwg.org'" <pwg at pwg.org> 
        cc:         
        Subject:        PWG> SC topic - no requirements in Counter Spec or
Port MIB



Hi,

A topic for this Thursday's PWG Steering Committee:

Both the PWG Imaging System Counters spec and the PWG
Port Monitor MIB do _not_ have an internal requirements
section.  Without an explicit variance from the PWG SC,
neither of these documents can enter Formal Approval
(the PWG Process/2.0 has no loopholes here).

On the other hand, the PWG Imaging Counter MIB _does_
have an internal requirements section.

Mea culpa - I should have realized this problem with
both specs a long time back, but the question is, what
to do?

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 



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