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Date: Tue, 02 Apr 2002 17:48:39 +0200
From: Marcus Brunner <brunner@ccrle.nec.de>
Reply-To: brunner@ccrle.nec.de
To: mpana@metasolv.com, Andrea Westerinen <andreaw@cisco.com>
Cc: IETF Policy <policy@ietf.org>, "Wg-Policy@Dmtf. Org" <wg-policy@dmtf.org>,
        "Wg-Network@Dmtf. Org" <wg-network@dmtf.org>
Subject: Re: [Policy] FilterList and EntriesInFilterList in PCIMe
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Mircea,


--On Tuesday, March 05, 2002 5:48 PM -0500 Mircea Pana <mpana@metasolv.com> 
wrote:

> Andrea,
>
>
> I have two issues that are somewhat related to each other:
>
> 1. If the restriction only applies to DiffServ then why is it defined in
> PCIMe? If, as you explain, this restriction is there to align with the
> DiffServ model then (IMO) QPIM would be a better place for it. PCIMe
> would simply indicate that if sequencing is not intended then the value
> "0" is to be used and as result the aggregated filters are ANDed.
>

It is defined in PCIMe because we want to use it in other models (e.g. 
MPLS), and has been regarded very general.

Does your mail mean that the text proposal from Andrea is not what you want 
to see?


> 2. However, if PCIMe allows sequencing for device-level filters (a
> FilterList of FilterEntries), then why doesn't it have the same
> functionality for the domain-level equivalent (a CompoundCondition of
> CompoundFilters)? I understand that the consensus is against component
> sequencing in the PCIMe CompoundCondition. Maybe the sequencing should
> be removed from the FilterList on the same premise that devices, due to
> their implementation, may not be able to honor it.

I am sorry, but do not understand what you mean.

Marcus

> Regards,
> Mircea.
>
>
>
>
>
> Andrea Westerinen wrote:
>>
>> Mircea, When the restriction was originally discussed, it was put in
>> place to align the model with the DiffServ Informal Model.  IE, to put a
>> default value in place such that the property COULD be used but may also
>> be ignored (and the default taken).  So, this was specifically about QoS
>> and not about the general model.  I am not sure where it got generalized
>> - or that it even should be generalized.  I would recommend that we
>> remove the word "always" in the phrase "always takes its default value"
>> (Section 4.9.2).  "Typically" or "usually" seems safer.
>>
>> The original thinking was to include all the model properties and align
>> the IETF and DMTF work, but also specify the "expected" defaults.
>>
>> Andrea
>>
>> -----Original Message-----
>> From: policy-admin@ietf.org [mailto:policy-admin@ietf.org]On Behalf Of
>> Mircea Pana
>> Sent: Monday, March 04, 2002 8:28 AM
>> To: IETF Policy
>> Subject: [Policy] FilterList and EntriesInFilterList in PCIMe
>>
>> The "FilterList" class imported from CIM, is redefined by PCIMe with an
>> additional restriction relative to the "EntriesInFilterList"
>> aggregation. This restriction is described in both Sections 4.9.2 and
>> 5.21.
>>
>> The two descriptions seem to be somewhat contradictory. Thus, while
>> 4.9.2 indicates the applicability of this restriction to *all* the
>> submodels:
>>
>> "For PCIMe and its submodels, the EntrySequence property in this
>>  aggregation always takes its default value '0', indicating that
>>  the aggregated filter entries are ANDed together."
>>
>> in section 5.21 the scope seems to be reduced to QoS submodel(s) *only*:
>>
>> "In modeling QoS classifiers, however, this property is always
>>  set to 0, to indicate that the aggregated filter entries are
>>  ANDed together to form a selector for a class of traffic."
>>
>> In section 5.21, was the reference to QoS intended as a scope limitation
>> or was that used as example? IMO clarification is necessary.
>>
>> Regards,
>> Mircea.
>>
>> _______________________________________________
>> Policy mailing list
>> Policy@ietf.org
>> https://www1.ietf.org/mailman/listinfo/policy



--------------------------------------
Dr. Marcus Brunner
Network Laboratories
NEC Europe Ltd.

E-Mail: brunner@ccrle.nec.de
WWW:    http://www.ccrle.nec.de/
personal home page: http://www.brubers.org/marcus



_______________________________________________
Policy mailing list
Policy@ietf.org
https://www1.ietf.org/mailman/listinfo/policy



From daemon@ns.ietf.org  Wed Apr  3 12:13:17 2002
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Date: Wed, 03 Apr 2002 11:57:46 -0500
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From: Mircea Pana <mpana@metasolv.com>
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CC: Andrea Westerinen <andreaw@cisco.com>, IETF Policy <policy@ietf.org>,
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Subject: Re: [Policy] FilterList and EntriesInFilterList in PCIMe
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Marcus,

I agree that this restriction should be generally applicable through PCIMe to
submodels. Andrea's mail seemed to suggest that the restriction would only
apply to DiffServ/QoS. This is where my first issue came from.

In the second issue, I compare "FilterList" with "CompoundContition". Either
can be used to aggregate a Set of traffic selection criteria. IMO either both
or none of them should allow component ordering. My preference is for no
ordering.

So, the text in PCIMe would read:

" 5.21. The Class FilterList

   This is a concrete class that aggregates instances of (subclasses of)
   FilterEntryBase via the aggregation EntriesInFilterList.  It is possible
   to aggregate different types of filters into a single FilterList - for
   example, packet header filters (represented by the IpHeadersFilter class)
   and security filters (represented by subclasses of FilterEntryBase
   defined by IPsec).

   The aggregation property EntriesInFilterList.EntrySequence is always
   set to 0, to indicate that the aggregated filter entries are ANDed together
   to form a selector for a class of traffic."

Regards,
Mircea.


Marcus Brunner wrote:

> Mircea,
>
> --On Tuesday, March 05, 2002 5:48 PM -0500 Mircea Pana <mpana@metasolv.com>
> wrote:
>
> > Andrea,
> >
> >
> > I have two issues that are somewhat related to each other:
> >
> > 1. If the restriction only applies to DiffServ then why is it defined in
> > PCIMe? If, as you explain, this restriction is there to align with the
> > DiffServ model then (IMO) QPIM would be a better place for it. PCIMe
> > would simply indicate that if sequencing is not intended then the value
> > "0" is to be used and as result the aggregated filters are ANDed.
> >
>
> It is defined in PCIMe because we want to use it in other models (e.g.
> MPLS), and has been regarded very general.
>
> Does your mail mean that the text proposal from Andrea is not what you want
> to see?
>
> > 2. However, if PCIMe allows sequencing for device-level filters (a
> > FilterList of FilterEntries), then why doesn't it have the same
> > functionality for the domain-level equivalent (a CompoundCondition of
> > CompoundFilters)? I understand that the consensus is against component
> > sequencing in the PCIMe CompoundCondition. Maybe the sequencing should
> > be removed from the FilterList on the same premise that devices, due to
> > their implementation, may not be able to honor it.
>
> I am sorry, but do not understand what you mean.
>
> Marcus
>
> > Regards,
> > Mircea.
> >
> >
> >
> >
> >
> > Andrea Westerinen wrote:
> >>
> >> Mircea, When the restriction was originally discussed, it was put in
> >> place to align the model with the DiffServ Informal Model.  IE, to put a
> >> default value in place such that the property COULD be used but may also
> >> be ignored (and the default taken).  So, this was specifically about QoS
> >> and not about the general model.  I am not sure where it got generalized
> >> - or that it even should be generalized.  I would recommend that we
> >> remove the word "always" in the phrase "always takes its default value"
> >> (Section 4.9.2).  "Typically" or "usually" seems safer.
> >>
> >> The original thinking was to include all the model properties and align
> >> the IETF and DMTF work, but also specify the "expected" defaults.
> >>
> >> Andrea
> >>
> >> -----Original Message-----
> >> From: policy-admin@ietf.org [mailto:policy-admin@ietf.org]On Behalf Of
> >> Mircea Pana
> >> Sent: Monday, March 04, 2002 8:28 AM
> >> To: IETF Policy
> >> Subject: [Policy] FilterList and EntriesInFilterList in PCIMe
> >>
> >> The "FilterList" class imported from CIM, is redefined by PCIMe with an
> >> additional restriction relative to the "EntriesInFilterList"
> >> aggregation. This restriction is described in both Sections 4.9.2 and
> >> 5.21.
> >>
> >> The two descriptions seem to be somewhat contradictory. Thus, while
> >> 4.9.2 indicates the applicability of this restriction to *all* the
> >> submodels:
> >>
> >> "For PCIMe and its submodels, the EntrySequence property in this
> >>  aggregation always takes its default value '0', indicating that
> >>  the aggregated filter entries are ANDed together."
> >>
> >> in section 5.21 the scope seems to be reduced to QoS submodel(s) *only*:
> >>
> >> "In modeling QoS classifiers, however, this property is always
> >>  set to 0, to indicate that the aggregated filter entries are
> >>  ANDed together to form a selector for a class of traffic."
> >>
> >> In section 5.21, was the reference to QoS intended as a scope limitation
> >> or was that used as example? IMO clarification is necessary.
> >>
> >> Regards,
> >> Mircea.
> >>
> >> _______________________________________________
> >> Policy mailing list
> >> Policy@ietf.org
> >> https://www1.ietf.org/mailman/listinfo/policy
>
> --------------------------------------
> Dr. Marcus Brunner
> Network Laboratories
> NEC Europe Ltd.
>
> E-Mail: brunner@ccrle.nec.de
> WWW:    http://www.ccrle.nec.de/
> personal home page: http://www.brubers.org/marcus


_______________________________________________
Policy mailing list
Policy@ietf.org
https://www1.ietf.org/mailman/listinfo/policy



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Subject: [Policy] Policy 2002 Call for Participation [ietf]
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(Please accept our apologies if you receive duplicates of this message)

                  POLICY 2002 - Call for Participation

             IEEE 3rd International Workshop on Policies
                for Distributed Systems and Networks

                         5-7 June, 2002

        Hosted by the Naval Postgraduate School, Monterey, USA

                URL: http://www.policy-workshop.org/2002/

Policy-based systems continue to be the subject of a wide range of
activities in universities, standardization bodies and within industry. They
have a wide spectrum of applicability ranging from systems management, to
quality of service adaptation, to security and enterprise modelling.

POLICY 2002 is the 3rd in a highly successful series of workshops, which
since 1999 has brought together leading researchers and industry experts to
discuss problems, solutions and experiences in developing policy-based
systems. In order to encourage greater interaction with other communities,
POLICY 2002 is co-located with SACMAT 2002 (3-4 June 2002)

Important Registration Information
----------------------------------

Due to increased security requirements participants must register in
advance (ON-SITE REGISTRATION WILL NOT BE ALLOWED). The deadlines are:

Advanced Registration: 15 May 2002
Late Registration:     30 May 2002

Further information on the workshop and registration forms can be found at:
   http://www.policy-workshop.org/2002/


Preliminary Workshop Programme
------------------------------

The Workshop programme includes 17 full papers and 13 position papers
selected from 67 submissions; as well as 4 invited talks, a panel and
Birds of a Feather sessions.

Wednesday 5th June 2002

   8:30-9:00   Registration & Coffee (Note: Due to security requirements
               participants must register in advance)

   9:00-10:00  Welcome & Invited Talk

   10:00-10:30 Coffee

   10:30-11:45 Specification & Analysis

               Obligation Monitoring in Policy Management
               Claudio Bettini, Sushil Jajodia, X. Sean Wang,
               Duminda Wijesekera

               Utilising the Event Calculus for Policy Driven Adaptation
               on Mobile Systems
               Chrisos Efstratiou, Adrian Friday, Nigel Davies,
               Keith Cheverst

               Delegation of Obligations
               Andreas Schaad, Jonathan Moffett

   11:45-1:00  Lunch

   1:00-2:15   Policy Management in the Large

               A Hierarchical Policy Specification Language and
               Enforcement Mechanism for Governing Digital Enterprises
               Xuhui Ao, Naftaly Minsky, Thu Nguyen

               Originator Control in Usage Control
               Jaehong Park, Ravi Sandhu

               A Community Authorization Service for Group Collaboration
               Laura Pearlman, Von Welch, Ian Foster, Carl Kesselman,
               Steven Tuecke

   2:15-2:40   Coffee

   2:40-3:30   Network Management I

               Policy-based Management for ALAN-Enabled Networks
               Ognjen Prnjat, Ioannis Liabotis, Temitope Olukemi,
               Lionel Sacks, Mike Fisher, Paul McKee, Ken Carlberg,
               Gregorio Martinez

               PoP - An Automated Policy Replacement Architecture for
               PBNM
               Lisandro Granville, Gustavo Coelho, Maria Almeida,
               Liane Tarouco

   3:30-3:45   Coffee

   3:45-4:45   Position Papers I

               How Policy Empowers Business-Driven Device Management
               John Strassner

               A Policy Based Storage Management Framework
               Murthy Devarakonda, Jack Gelb, Avi Saha, Jimmy Strickland

               Policy Driven Data Administration
               Vishal Batra, Jaijit Bhattacharya, Harish Chauhan, Ajay Gupta,
               Mukesh Mohania, Upendra Sharma

               Dynamically Extensible Policy Server and Agent
               Yasusi Kanada

   4:45-5:00   Coffee

   5:00-6:00   Position Papers II

               Cross-Domain Access Control via PKI
               Grit Denker, Jonathan Millen, Yutaka Miyake

               Revocation Schemes for Delegated Authorities
               Babak Sadighi Firozabadi, Marek Sergot

               Web-based Policy Deployment Management System
               Hosoon Ku, Hee-Gweon Son, Janos Facsko, Jason Tyrell,
               Alan Haines

               PEM3 ­ the Policy Enhanced Memory Management Model
               Johan Andersson, Christian Jensen, Stefan Weber

   6:00-6:15   Coffee

   6:15-7:15   Birds of a Feather Sessions

   ---------------------------------------------------------------------------


Thursday 6th June 2002

   9:00-10:00  Invited Talks

   10:00-10:30 Coffee

   10:30-11:45 Access Control

               Meta-Policies for Distributed Role-Based Access Control
               Systems
               Andras Belokosztolszki, Ken Moody

               A System to Specify and Manage Multipolicy Access Control
               Models
               Elisa Bertino, Barbara Catania, Elena Ferrari, Paolo Perlasca

               The Specification and Enforcement of Advanced Security
               Policies
               Tatyana Ryutov, Clifford Neuman

   11:45-1:00  Lunch

   1:00-2:15   Network Management II

               An Adaptive Policy Based Management Framework for
               Differentiated Services Networks
               Leonidas Lymberopoulos, Emil Lupu, Morris Sloman

               A Policy Based QoS Management System for the
               IntServ/DiffServ Based Internet
               Appan Ponnappan, Lingjia Yang, Radhakrishna Pillai, Peter Braun

               A Policy-based Approach to Personalization of
               Communication over Converged Networks
               Patricia Lago

   2:15-2:30   Coffee

   2:30-3:45   Panel (Chair: Morris Sloman, Imperial College, London)

               Is a Universal Approach to Policy Specification and Deployment
               for Network and Security Management Feasible?

   3:45-4:15   Coffee

   4:15-5:30   Position Papers III

               A multi-domain security policy distribution architecture
               for dynamic IPsec VPN management
               Abdelmaleck Benzekri, François Barrère, Frédéric Grasset,
               Romain Laborde

               Policy-Driven Access Control over a Distributed Firewall
               Architecture
               Theo Dimitrakos, Ivan Djordjevic, Brian Matthews,
               Juan Bicarregui, Chris Phillips

               A Weakly Coupled Adaptive Gossip Protocol for Application
               Level Active Networks
               Ibiso Wokoma, Ioannis Liabotis, Ognjen Prnjat, Lionel Sacks,
               Ian Marshall

               Applying Trust Policies for Efficiently Protecting Mobile
               Agents Against DoS Attacks
               Biljana Cubaleska, Markus Schneider

               A Policy-based Infrastructure for the Dynamic Control of
	        Agent Mobility
	        Rebecca Montanari, Gianluca Tonti

   7:00-10:30  Monterey Bay Aquarium: Outer Bay Strolling Dinner

   ---------------------------------------------------------------------------

Friday 7th June 2002

   9:00-10:00  Invited Talk

   10:00-10:30 Coffee

   10:30-11:45 Trust

               Requirements for Policy Languages for Trust Negotiation
               Kent Seamons, Marianne Winslett, Ting Yu, Bryan Smith,
               Evan Child, Jared Jacobson, Hyrum Mills, Lina Yu

               Practical Automated Trust Negotiation
               William Winsborough, Ninghui Li

               Policies in Accountable Contracts
               Brian Shand, Jean Bacon

   ---------------------------------------------------------------------------

   



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Message-ID: <3CCDAA15.1070202@parnelli.indy.cr.irs.gov>
Date: Mon, 29 Apr 2002 15:16:21 -0500
From: "Larry S. Bartz" <lbartz@parnelli.indy.cr.irs.gov>
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Subject: [Policy] PCLS status?
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What is the status of draft-ietf-policy-core-schema-14.txt?

It is not mentioned in http://www.ops.ietf.org/draft-status.html

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