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From: "del Busto, Michael" <Michael.del.Busto@icn.siemens.com>
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Hi,

I'm going to unsubscribe to this distribution list because there are just
too many emails to keep up with.

I was wondering if these discussions are being posted on a website that I
can check into from time to time.

Thanks,
Michael del Busto
Engineer
Siemens ICN

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From diffserv-admin@ietf.org  Mon Oct  1 10:21:15 2001
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Check the bottom of your message.

Ofer.

-----Original Message-----
From: diffserv-admin@ietf.org [mailto:diffserv-admin@ietf.org]On Behalf Of
del Busto, Michael
Sent: Monday, October 01, 2001 14:32
To: diffserv@ietf.org
Subject: [Diffserv] Diffserv Forum

Hi,

I'm going to unsubscribe to this distribution list because there are just
too many emails to keep up with.

I was wondering if these discussions are being posted on a website that I
can check into from time to time.

Thanks,
Michael del Busto
Engineer
Siemens ICN

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tml


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From diffserv-admin@ietf.org  Mon Oct  1 11:47:40 2001
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Date: Mon, 01 Oct 2001 08:12:00 -0700
To: Shahram Davari <Shahram_Davari@pmc-sierra.com>
From: Fred Baker <fred@cisco.com>
Subject: RE: [Diffserv] diffserv MIB counts
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>I'm going to have some comments separated by pictures. Don't read a 
>paragraph, see the start of a picture, and assume you have the substance 
>of the note. There's a test at the end :^)

I realized that I put a "count action" after the queue, rather than 
changing the word to "rate based scheduler", as I intended too. Probably 
introduced some real confusion there, for which I apologize.

Please review Figures 9-12 in the latest markup at 
ftp://ftpeng.cisco.com/fred/diffserv/marked.draft-ietf-diffserv-mib-14.txt
or ftp://ftpeng.cisco.com/fred/diffserv/draft-ietf-diffserv-mib-14.txt


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From diffserv-admin@ietf.org  Mon Oct  1 13:06:34 2001
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From: Shahram Davari <Shahram_Davari@pmc-sierra.com>
To: "'Fred Baker'" <fred@cisco.com>
Cc: "'diffserv@ietf.org'" <diffserv@ietf.org>
Subject: RE: [Diffserv] diffserv MIB counts
Date: Mon, 1 Oct 2001 07:02:15 -0700 
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Hi Fred,

Excellent pictures. I support adding them to the draft.

Yours,
-Shahram

> -----Original Message-----
> From: Fred Baker [mailto:fred@cisco.com]
> Sent: Friday, September 28, 2001 5:49 PM
> To: Shahram Davari
> Cc: 'diffserv@ietf.org'
> Subject: RE: [Diffserv] diffserv MIB counts
> 
> 
> I'm going to have some comments separated by pictures. Don't read a 
> paragraph, see the start of a picture, and assume you have 
> the substance of 
> the note. There's a test at the end :^)
> 
> At 02:19 PM 9/28/2001, Shahram Davari wrote:
> >Can we conclude that a count action can be placed almost 
> anywhere (in line)?
> 
> yes, anywhere it makes sense. In context, I think you have a 
> pretty simple 
> picture, one of the following two. I think if you change them 
> in any way, 
> you get a mess; classification has to come before counting, 
> and queuing has 
> to come after. Discarding has to also come after counting and before 
> queuing, because you want the packet presented to be in the 
> total counter, 
> but to potentially not get into the queue.
> 
>          +-----------------------------------------------------+
>          |                     Classifier                      |
>          +--------+-----------------+-----------------+--------+
>                   | Green           | Yellow          | Red
>                   |                 |                 |
>              +----+----+       +----+----+       +----+----+
>              |  Count  |       |  Count  |       |  Count  |
>              |  Action |       |  Action |       |  Action |
>              +----+----+       +----+----+       +----+----+
>                   |                 |                 |
>              +----+----+       +----+----+       +----+----+
>              |  Random |       |  Random |       |  Random |
>              |  Drop   |       |  Drop   |       |  Drop   |
>              |  Action |       |  Action |       |  Action |
>              +----+----+       +----+----+       +----+----+
>                   |                 |                 |
>          +--------+-----------------+-----------------+--------+
>          |                        Queue                        |
>          +--------------------------+--------------------------+
>                                     |
>                                +----+----+
>                                |  Count  |
>                                |  Action |
>                                +----+----+
>                                     |
> 
> 
> 
> 
>          +-----------------------------------------------------+
>          |                     Classifier                      |
>          +--------+--------------------------------------------+
>                   |Green| Yellow| Red
>                   |     |       |
>                +--+-----+-------+--+ Fail +--------------------+
>                |      Meter        +------+      Meter         |
>                +--+----------------+      +---+-------+--------+
>                   | Succeed (Green)           |       |Fail (Red)
>                   |                 +---------+       |
>                   |                 | Succeed (Yellow)|
>              +----+----+       +----+----+       +----+----+
>              |  Count  |       |  Count  |       |  Count  |
>              |  Action |       |  Action |       |  Action |
>              +----+----+       +----+----+       +----+----+
>                   |                 |                 |
>              +----+----+       +----+----+       +----+----+
>              |  Random |       |  Random |       |  Random |
>              |  Drop   |       |  Drop   |       |  Drop   |
>              |  Action |       |  Action |       |  Action |
>              +----+----+       +----+----+       +----+----+
>                   |                 |                 |
>          +--------+-----------------+-----------------+--------+
>          |                        Queue                        |
>          +--------------------------+--------------------------+
>                                     |
>                                +----+----+
>                                |  Count  |
>                                |  Action |
>                                +----+----+
>                                     |
> 
> Now, this is slightly more explicit than the picture on page 
> 23 in the MIB, 
> because I ran out of bits to do ASCII Art in. That picture is:
> 
> 
>           +-----------------------+
>           | diffServDataPathStart |
>           +-----------+-----------+
>                       |
>            +----------+
>            |
>         +--+--+     +-----+     +-----+     +-----+     +-----+
>         | AF1 +-----+ AF2 +-----+ AF3 +-----+ AF4 +-----+ EF  |
>         +-+++-+     +-+++-+     +-+++-+     +-+++-+     +-+-+-+
>           |||         |||         |||         |||         | |
>         +-+++-+     +-+++-+     +-+++-+     +-+++-+     +-+-+-+
>         |trTCM|     |trTCM|     |trTCM|     |trTCM|     |srTCM|
>         |Meter|     |Meter|     |Meter|     |Meter|     |Meter|
>         +-+++-+     +-+++-+     +-+++-+     +-+++-+     +-+-+-+
>           |||         |||         |||         |||         | |
>         +-+||---+   +-+||---+   +-+||---+   +-+||---+   +-+-|---+
>         |+-+|----+  |+-+|----+  |+-+|----+  |+-+|----+  |+--+----+
>         ||+-+-----+ ||+-+-----+ ||+-+-----+ ||+-+-----+ ||Actions|
>         +||Actions| +||Actions| +||Actions| +||Actions| +|       |
>          +|       |  +|       |  +|       |  +|       |  +-+-----+
>           +-+-----+   +-+-----+   +-+-----+   +-+-----+    |
>           |||         |||         |||         |||          |
>         +-+++--+    +-+++--+    +-+++--+    +-+++--+    +--+---+
>         | Queue|    | Queue|    | Queue|    | Queue|    | Queue|
>         +--+---+    +--+---+    +--+---+    +--+---+    +--+---+
>            |           |           |           |           |
>         +--+-----------+-----------+-----------+---+       |
>         |     WFQ/WRR Scheduler                    |       |
>         +--------------------------------------+---+       |
>                                                |           |
>                                          +-----+-----------+----+
>                                          |  Priority Scheduler  |
>                                          +----------+-----------+
>                                                     |
>                                                     V
> 
>         Figure 8: combined EF and AF implementation
> 
> The problem I have at this point is that I thought this was 
> all covered in 
> section 3.6.1 of the document; I believe it is verbally, but 
> it sounds like 
> it didn't make sense to you, or at least that the picture might have 
> helped. Would it help you if I took the two pictures above, 
> and a corollary 
> picture for EF, and added them somewhere in that section?
> 

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From diffserv-admin@ietf.org  Mon Oct  1 14:45:12 2001
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Date: Mon, 01 Oct 2001 10:58:05 -0700
To: Shahram Davari <Shahram_Davari@pmc-sierra.com>
From: Fred Baker <fred@cisco.com>
Subject: RE: [Diffserv] diffserv MIB counts
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At 07:02 AM 10/1/2001, Shahram Davari wrote:
>Excellent pictures. I support adding them to the draft.

per your private note, I have updated figure 9 into 9a and 9b; one is 
color-blind, the other is color-aware.


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From diffserv-admin@ietf.org  Tue Oct  2 15:29:48 2001
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Subject: [Diffserv] Minor Errors in DiffServ MIB-14 dated Mon Oct 01 22:45:00 2001
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Fred:
Just some minor errors in some of the text.

The attribute diffServClfrElementClfrId has been removed but some text still
reference this attribute.  I remember we corrected these while we were in
London, but seeing them in the latest pre-post -14 again.
More specifically, the changes are:

1.
When the MIB is used for configuration, diffServClfrNextFree and
diffServClfrElementNextFree always contain legal values for
diffServClfrId and diffServClfrElementClfrId that are not currently used
in the system's configuration.  The values are validated when creating
diffServClfrId and diffServClfrElementClfrId, and in the event of a
failure (which would happen if two managers simultaneously attempted to
create an entry) must be re-read.  diffServClfrElementClfrId must not be
read before diffServClfrId, but the two may be read in the same GET, in
order to avoid such collisions..

should be:

When the MIB is used for configuration, diffServClfrNextFree and
diffServClfrElementNextFree always contain legal values for
diffServClfrId and diffServClfrElementId that are not currently used
in the system's configuration.  The values are validated when creating
diffServClfrId and diffServClfrElementId, and in the event of a
failure (which would happen if two managers simultaneously attempted to
create an entry) must be re-read.


2.
Typically, such a table has an associated NextFree variable e.g.
diffServClfrNextFree which provides a suitable value for the index of
the next row to be created e.g. diffServClfrElementClfrId. The value
zero is used to indicate that the agent can configure no more entries.
The table also has a columnar Status attribute with RowStatus syntax
[6].

should be:

Typically, such a table has an associated NextFree variable e.g.
diffServClfrNextFree which provides a suitable value for the index of
the next row to be created e.g. diffServClfrId. The value
zero is used to indicate that the agent can configure no more entries.
The table also has a columnar Status attribute with RowStatus syntax
[6].


3.
diffServClfrEntry OBJECT-TYPE
     SYNTAX       DiffServClfrEntry
     MAX-ACCESS   not-accessible
     STATUS       current
     DESCRIPTION
        "An entry in the classifier table describes a single classifier.
        All classifier elements belonging to the same classifier uses the
        classifier's diffServClfrId in their diffServClfrElementClfrId
        attribute."
     INDEX { diffServClfrId }
     ::= { diffServClfrTable 1 }

should be:

diffServClfrEntry OBJECT-TYPE
     SYNTAX       DiffServClfrEntry
     MAX-ACCESS   not-accessible
     STATUS       current
     DESCRIPTION
        "An entry in the classifier table describes a single classifier.
        All classifier elements belonging to the same classifier uses the
        classifier's diffServClfrId as part of their index."
     INDEX { diffServClfrId }
     ::= { diffServClfrTable 1 }


Thanks!
-- Kwok --



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At 11:49 AM 10/2/2001, Kwok-Ho Chan wrote:
>Fred:
>Just some minor errors in some of the text.

OK, please check the markup that I have done this correctly.


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Fred:
I have checked the Pre-Post-14 MIB dated Tue Oct 02 12:32:00 2001.
The markups are correct.
Thanks!
-- Kwok --

At 12:31 PM 10/2/01 -0700, Fred Baker wrote:
>At 11:49 AM 10/2/2001, Kwok-Ho Chan wrote:
>>Fred:
>>Just some minor errors in some of the text.
>
>OK, please check the markup that I have done this correctly.


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From diffserv-admin@ietf.org  Wed Oct  3 05:21:20 2001
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Subject: [Diffserv] Protocol Action: An Expedited Forwarding PHB to Proposed
 Standard
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The IESG has approved the Internet-Draft 'An Expedited Forwarding PHB'
<draft-ietf-diffserv-rfc2598bis-02.txt> as a Proposed Standard.

The IESG also approved publication of the following two documents as
Informational RFCs:

 o Supplemental Information for the New Definition of the EF PHB
	<draft-ietf-diffserv-ef-supplemental-01.txt>
 o A Delay Bound alternative revision of RFC2598 
	<draft-ietf-diffserv-efresolve-01.txt>


These documents are the product of the Differentiated Services Working
Group.  The IESG contact persons are Allison Mankin and Scott Bradner.

 
Technical Summary
 
 An Expedited Forwarding PHB obsoletes RFC 2598.  It defines a diffserv
 per hop behavior known as Expedited Forwarding (EF). EF provides a
 building block for low delay, low jitter and low loss services.  It
 operates by ensuring that the EF aggregate is served at a certain
 configured rate.

Working Group Summary

 This document is the result of an extended discussion in the Working
 Group.  It represents the consensus of the WG but there are a number
 of people who disagreed with the result.

Protocol Quality

 The document was reviewed for the IESG by Scott Bradner.


Note to RFC Editor:

 Please note that reference [3] in draft-ietf-diffserv-rfc2598bis-02.txt
 is not 2119 as text indicates.



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From diffserv-admin@ietf.org  Wed Oct  3 11:21:23 2001
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I believe that
	ftp://ftpeng.cisco.com/fred/diffserv/draft-ietf-diffserv-mib-14.txt 
incorporates all changes requested during last call.


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From diffserv-admin@ietf.org  Wed Oct  3 11:21:40 2001
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Date: Wed, 3 Oct 2001 08:00:06 -0700 (PDT)
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To: diffserv@ietf.org
Subject: [Diffserv] marked up version
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I believe that version 14 incorporates all changes requested during
last call.  Here is the marked-up URL

ftp://ftpeng.cisco.com/fred/diffserv/marked.draft-ietf-diffserv-mib-14.txt 

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From diffserv-admin@ietf.org  Wed Oct  3 11:41:10 2001
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From: "Ronald Murphy" <rmurphy@networkrobots.com>
To: <diffserv@ietf.org>
Date: Wed, 3 Oct 2001 08:34:53 -0700
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Hi,

The diffserv model had a concept of a fan-in multiplexor going to a meter,
which would allow multiple traffic streams to be collectively controlled by
the same meter.

The diffserv MIB does not mention multiplexors directly.  However, it seems
by setting the "next element" of various datapath elements to be the exact
same meter, one could represent the multiplexing concept appropriately.

Is this the intent?

e.g.

                      +------+
+---------+           |      |
| Classfr +---------->+  M   |
| elemt 1 |           |  E   |
+---------+           |  T   |
                      |  E   |
+---------+           |  R   |
| Classfr +---------->+      |
| elemt 2 |           |      |
+---------+           |      |
                      |      |
+---------+           |      |
| Classfr +---------->+      |
| elemt 3 |           |      |
+---------+           +------+

Ron


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From diffserv-admin@ietf.org  Wed Oct  3 13:00:46 2001
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Date: Wed, 03 Oct 2001 09:39:20 -0700
Subject: Re: [Diffserv] Question about shared meters
From: Harrie Hazewinkel <harrie@covalent.net>
To: Ronald Murphy <rmurphy@networkrobots.com>,
        IETF diffserv WG <diffserv@ietf.org>
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On 10/3/01 8:34, "Ronald Murphy" <rmurphy@networkrobots.com> wrote:

> 
> 
> Hi,
> 
> The diffserv model had a concept of a fan-in multiplexor going to a meter,
> which would allow multiple traffic streams to be collectively controlled by
> the same meter.
> 
> The diffserv MIB does not mention multiplexors directly.  However, it seems
> by setting the "next element" of various datapath elements to be the exact
> same meter, one could represent the multiplexing concept appropriately.
> 
> Is this the intent?

Yes.

> 
> e.g.
> 
>                     +------+
> +---------+           |      |
> | Classfr +---------->+  M   |
> | elemt 1 |           |  E   |
> +---------+           |  T   |
>                     |  E   |
> +---------+           |  R   |
> | Classfr +---------->+      |
> | elemt 2 |           |      |
> +---------+           |      |
>                     |      |
> +---------+           |      |
> | Classfr +---------->+      |
> | elemt 3 |           |      |
> +---------+           +------+
> 
> Ron
> 
> 
> _______________________________________________
> diffserv mailing list
> diffserv@ietf.org
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> Archive: 
> 
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tm> l
> 
> 


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From diffserv-admin@ietf.org  Wed Oct  3 13:00:55 2001
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Date: Wed, 03 Oct 2001 09:29:08 -0700
To: "Ronald Murphy" <rmurphy@networkrobots.com>
From: Fred Baker <fred@cisco.com>
Subject: Re: [Diffserv] Question about shared meters
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At 08:34 AM 10/3/2001, Ronald Murphy wrote:
>The diffserv MIB does not mention multiplexors directly.  However, it seems
>by setting the "next element" of various datapath elements to be the exact
>same meter, one could represent the multiplexing concept appropriately.

yes. Understand that from the meter's perspective, the multiplexed inputs 
are one traffic stream. As in, if you send all of the AF1x and AF2x traffic 
through the same meter, it will tell you something about the sum of their 
rates and nothing in particular about either of their rates individually.


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Murphy,

YES. The traffic coming on an interface can be classified into multiple 
classes. Multiple classifier elements can classify the traffic on the 
interface into a single class. In both cases it is possible to associate them 
with a single meter, either to measure the aggregate traffic of all classes 
or a single traffic class.

--Sitaram

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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>
<BR>Murphy,
<BR>
<BR>YES. The traffic coming on an interface can be classified into multiple classes. Multiple classifier elements can classify the traffic on the interface into a single class. In both cases it is possible to associate them with a single meter, either to measure the aggregate traffic of all classes or a single traffic class.
<BR>
<BR>--Sitaram</FONT></HTML>

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From diffserv-admin@ietf.org  Thu Oct  4 05:10:19 2001
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This WG Last Call has now ended, and all the comments are covered by
  ftp://ftpeng.cisco.com/fred/diffserv/draft-ietf-diffserv-mib-14.txt
which will shortly be posted as an Internet-Draft. At that moment the
MIB and Informasl Model drafts will be submitted to the IESG for
publication. (You will then see an IETF Last Call for the MIB.)

Many thanks to the MIB authors, especially Fred, and the MIB doctors,
Harrie and Bert, and to everyone else who commented.

   Brian Carpenter
   diffserv WG co-chair

Brian E Carpenter wrote:
> 
> Diffservers,
> 
> It is proposed to forward
>    draft-ietf-diffserv-mib-13.txt
> to the IESG for publication as a Proposed Standard RFC.
> 
> It is also proposed to forward
>    draft-ietf-diffserv-model-06.txt
> to the IESG for publication as an Informational RFC.
> 
> Any final comments on these drafts should be sent to the WG list at
> diffserv@ietf.org within two weeks, i.e. at the latest on October 2, 2001.
> There is one known open issue (the MIB conformance statement)
> to be resolved during this period.
> 
> Thanks
> 
>   Brian Carpenter + Kathie Nichols
>   diffserv WG co-chairs

-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Brian E Carpenter 
Distinguished Engineer, Internet Standards & Technology, IBM 
On assignment at the IBM Zurich Laboratory, Switzerland
Board Chairman, Internet Society http://www.isoc.org

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From diffserv-admin@ietf.org  Thu Oct  4 07:22:33 2001
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--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Differentiated Services Working Group of the IETF.

	Title		: Management Information Base for the Differentiated 
                          Services Architecture
	Author(s)	: F. Baker, K. Chan, A. Smith
	Filename	: draft-ietf-diffserv-mib-14.txt
	Pages		: 126
	Date		: 03-Oct-01
	
This memo describes an SMIv2 MIB for a device implementing the
Differentiated Services Architecture.  It may be used both for
monitoring and configuration of a router or switch capable of
Differentiated Services functionality.

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From diffserv-admin@ietf.org  Thu Oct  4 12:44:17 2001
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From: "Marck Gendra" <marck.gendra@upcnet.es>
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----- Original Message -----=20
From: Marck Gendra=20
To: diffserv-interest@ietf.org=20
Sent: Monday, October 01, 2001 2:42 PM
Subject: How to dimension a Token Bucket?


Hello,
I'm making the following experiment:
Sending a video session (with Cisco IP/TV video server) marked as EF.
The average speed of video transmission is about 1.5Mbps, but there are =
some traffic bursts.
The TB of the edge router (ingress) should mark conformant packets as EF =
and should drop exceeded packets.
I would like to know how to dimension the TB to get less than 0.1% =
packets lost and then obtain a good video quality for EF traffic.
Does anybody knows if there's any formula (similar to ATM Leaky bucket) =
to dimension correctly both parameters of the Token Bucket to obtain =
less than 0.1% losses?

Thanks you.=20

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3500" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV>&nbsp;</DIV>
<DIV style=3D"FONT: 10pt arial">----- Original Message -----=20
<DIV style=3D"BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A=20
href=3D"mailto:marck.gendra@upcnet.es" =
title=3Dmarck.gendra@upcnet.es>Marck=20
Gendra</A> </DIV>
<DIV><B>To:</B> <A href=3D"mailto:diffserv-interest@ietf.org"=20
title=3Ddiffserv-interest@ietf.org>diffserv-interest@ietf.org</A> </DIV>
<DIV><B>Sent:</B> Monday, October 01, 2001 2:42 PM</DIV>
<DIV><B>Subject:</B> How to dimension a Token Bucket?</DIV></DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I'm making the following =
experiment:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Sending a video session (with Cisco =
IP/TV video=20
server) marked as EF.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The average speed of video transmission =
is about=20
1.5Mbps, but there are some traffic bursts.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The TB of the edge router (ingress) =
should mark=20
conformant packets&nbsp;as EF&nbsp;and should drop exceeded=20
packets.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I would like to know how to dimension =
the=20
TB&nbsp;to get less than 0.1%&nbsp;packets lost and then obtain a good =
video=20
quality for EF traffic.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Does anybody knows if there's any =
formula (similar=20
to ATM Leaky bucket) to dimension correctly both parameters of the Token =
Bucket=20
to obtain less than 0.1% losses?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks =
you.</FONT>&nbsp;</DIV></BODY></HTML>

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From diffserv-admin@ietf.org  Thu Oct  4 15:07:56 2001
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From: "Ronald Murphy" <rmurphy@networkrobots.com>
To: <diffserv@ietf.org>
Date: Thu, 4 Oct 2001 11:53:10 -0700
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Subject: [Diffserv] Diffserv MIB number?
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Hi,

When will the diffserv MIB get an OID assigned by IANA?

Ron

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From diffserv-admin@ietf.org  Thu Oct  4 16:58:50 2001
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From: "Wijnen, Bert (Bert)" <bwijnen@lucent.com>
To: Ronald Murphy <rmurphy@networkrobots.com>, diffserv@ietf.org
Subject: RE: [Diffserv] Diffserv MIB number?
Date: Thu, 4 Oct 2001 22:45:11 +0200 
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That normally happens just before the RFC gets published.
Experience shows that after the doc passes WG Last Call,
it takes another 2-4 weeks to get approved by IESG (this
includes a 2 week IETF Last Call). Then it takes between
4-10 weeks before the doc actually gets published as RFC.
So my guess is that it will take between 2-3 months from
now, if we do not hit any obstackles.

Bert 

> -----Original Message-----
> From: Ronald Murphy [mailto:rmurphy@networkrobots.com]
> Sent: Thursday, October 04, 2001 8:53 PM
> To: diffserv@ietf.org
> Subject: [Diffserv] Diffserv MIB number?
> 
> 
> Hi,
> 
> When will the diffserv MIB get an OID assigned by IANA?
> 
> Ron
> 
> _______________________________________________
> diffserv mailing list
> diffserv@ietf.org
> https://www1.ietf.org/mailman/listinfo/diffserv
> Archive: 
> http://www2.ietf.org/mail-archive/working-groups/diffserv/curr
> ent/maillist.html
> 

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From diffserv-admin@ietf.org  Fri Oct  5 05:14:47 2001
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From: Perret Alexandre <alexandre.perret@orange.ch>
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Hello,

I'm quite a newcomer in the DiffServ world. I would like to know if
someone has some kind of template for constructing services using
DiffServ. I'm going to implement a QoS policy in a backbone network
dedicated to wireless access, the IP core is made of Cisco switches and
routers. I can provide QoS on my backbone, but how can I be sure that
DiffServ is implemented outside my domain?

Thanks for the help,

Regards,

Alexandre


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From diffserv-admin@ietf.org  Fri Oct  5 10:14:59 2001
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This sounds like a question for the diffserv implementation list.
This list is for standardisation work.

See http://www.atnf.csiro.au/news/exploders/dsimplementation.html

   Brian

Perret Alexandre wrote:
> 
> Hello,
> 
> I'm quite a newcomer in the DiffServ world. I would like to know if
> someone has some kind of template for constructing services using
> DiffServ. I'm going to implement a QoS policy in a backbone network
> dedicated to wireless access, the IP core is made of Cisco switches and
> routers. I can provide QoS on my backbone, but how can I be sure that
> DiffServ is implemented outside my domain?
> 
> Thanks for the help,
> 
> Regards,
> 
> Alexandre

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From diffserv-admin@ietf.org  Tue Oct  9 06:07:25 2001
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To: IETF-Announce: ;
Cc: diffserv@ietf.org
From: The IESG <iesg-secretary@ietf.org>
Reply-to: iesg@ietf.org
Date: Mon, 08 Oct 2001 15:15:36 -0400
Subject: [Diffserv] Last Call: Management Information Base for the Differentiated
 Services Architecture to Proposed Standard
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The IESG has received a request from the Differentiated Services
Working Group to consider Management Information Base for the
Differentiated Services Architecture <draft-ietf-diffserv-mib-14.txt>
as a Proposed Standard.

The IESG will also consider An Informal Management Model for Diffserv
Routers <draft-ietf-diffserv-model-06.txt> as an Informational RFC.


The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action.  Please send any comments to the
iesg@ietf.org or ietf@ietf.org mailing lists by October 22, 2001.

Files can be obtained via
http://www.ietf.org/internet-drafts/draft-ietf-diffserv-mib-14.txt
http://www.ietf.org/internet-drafts/draft-ietf-diffserv-model-06.txt


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From diffserv-admin@ietf.org  Thu Oct 11 12:16:31 2001
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From: Ronen Tausi <RonenT@Radlan.co.il>
To: "'diffserv@ietf.org'" <diffserv@ietf.org>
Date: Thu, 11 Oct 2001 17:43:14 +0200
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hello

i have 2 question regarding the draft of mib 14 :

1. in the mib in regard to row pointer it states that if we try to config a
row pointer that does not point to a valid entry we must return
inconsistentvalue error , but if config
 a valid rowpointer and than that entry becomes non valid we simply treat it
as if it has zero dot zero value,
 if we save configuration ( snap ) and try to use it to reconfigure the
device we will get inconssitent value because the entry is non valid , is
that aa acceptable situation ?

2. in the action table the interface field was added that hold the if index
but it states that the ifindex can be derived from the datapath and
following the row pointer,  
  what if the interface is not one of the data path ifindex ? .
 if we have multiple data path that point to the same action , how can we
determine the right value ? , and if we five the interface the value 0 ,
will that mean we can use 
all the derived ifindexs ?

thanks 

gain



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From diffserv-admin@ietf.org  Thu Oct 11 14:44:00 2001
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Date: Thu, 11 Oct 2001 11:26:04 -0700
Subject: Re: [Diffserv] mib 14
From: Harrie Hazewinkel <harrie@covalent.net>
To: Ronen Tausi <RonenT@Radlan.co.il>, IETF diffserv WG <diffserv@ietf.org>
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On 10/11/01 8:43, "Ronen Tausi" <RonenT@Radlan.co.il> wrote:

> hello
> 
> i have 2 question regarding the draft of mib 14 :
> 
> 1. in the mib in regard to row pointer it states that if we try to config a
> row pointer that does not point to a valid entry we must return
> inconsistentvalue error , but if config
> a valid rowpointer and than that entry becomes non valid we simply treat it
> as if it has zero dot zero value,
> if we save configuration ( snap ) and try to use it to reconfigure the
> device we will get inconssitent value because the entry is non valid , is
> that aa acceptable situation ?

I am not sure if I get this. I try to explain.

When you want to configure a RowPointer you need to create the row to
which it points before. Otherwise you get the 'inconsistentvalue' returned.

If later the configuration is changed and the row to which the RowPointer
pointed is deleted the RowPointer will be treated as if it were '0.0'.

However, if you want to have the same RowPointer used later you cannot.
That row to which it pointed is deleted (not avaialble) and thus you have
the same  situation as in the very first use of the RowPointer pointing to a
non-existant row.

Is this what you are asking??

> 
> 2. in the action table the interface field was added that hold the if index
> but it states that the ifindex can be derived from the datapath and
> following the row pointer,
> what if the interface is not one of the data path ifindex ? .

In that case the value is indeterminate. The agent cannot determine
the 'single' ifIndex the action belongs to. Thus, indeterminate and the
value is '0' (as specified in the description clause).

> if we have multiple data path that point to the same action , how can we
> determine the right value ? ,


> and if we five the interface the value 0 ,
> will that mean we can use
> all the derived ifindexs ?

If the action is from a datapath that merges from 5 interfaces the
management application can make note of it. If the management application
builds its own internal structures for the datapath representations.

Harrie



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From diffserv-admin@ietf.org  Fri Oct 12 07:21:53 2001
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	(message from Ronen Tausi on Thu, 11 Oct 2001 17:43:14 +0200)
Subject: Re: [Diffserv] mib 14
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>>>>> Ronen Tausi writes:

Ronen> 1. in the mib in regard to row pointer it states that if we try
Ronen> to config a row pointer that does not point to a valid entry we
Ronen> must return inconsistentvalue error , but if config a valid
Ronen> rowpointer and than that entry becomes non valid we simply
Ronen> treat it as if it has zero dot zero value, if we save
Ronen> configuration ( snap ) and try to use it to reconfigure the
Ronen> device we will get inconssitent value because the entry is non
Ronen> valid , is that aa acceptable situation ?

I think the text implies that an application which read the DiffServ
MIB and later tries to restore it via a sequence of SNMP set
operations must be able to detect and handle dangling pointers. Note
also that such an application has to be smart enough to create the
rows in the right order.

I expect that this is actually not too hard to do - but since I have
not coded this myself yet, surprises might be possible. ;-)

BTW, the PIB puts even stronger requirements on the PDP. The PIB
requires that number of rows is kind of minimal (see the UNIQUENESS
clauses in the DiffServ PIB).

/js

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To: <diffserv@ietf.org>, <diffserv-interest@ietf.org>
Date: Tue, 16 Oct 2001 17:32:00 +0200
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Hi,

I'm interest in the interoperability of Diffserv and IPv6.
Is there any document related on diffserv and IPv6 compatibility?

Thanks.

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I'm interest in the interoperability of =
Diffserv=20
and IPv6.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Is there any document related on =
diffserv and IPv6=20
compatibility?</FONT></DIV>
<DIV>&nbsp;</DIV>
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From diffserv-admin@ietf.org  Tue Oct 16 13:36:28 2001
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From: Tom Kristensen <tomkri@ifi.uio.no>
Date: 16 Oct 2001 19:21:37 +0200
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>>>>> "Marck" == Marck Gendra <marck.gendra@upcnet.es> writes:

    Marck> I'm interest in the interoperability of Diffserv and IPv6.
    Marck> Is there any document related on diffserv and IPv6
    Marck> compatibility?

What about starting with:

IETF Differentiated Services Working Group (charter/home page)
   http://www.ietf.org/html.charters/diffserv-charter.html

RFC2474 - "Definition of the Differentiated Services Field 
           (DS Field) in the IPv4 and IPv6 Headers"
   http://www.ietf.org/rfc/rfc2474.txt

RFC2475 - "An Architecture for Differentiated Services" 
   http://www.ietf.org/rfc/rfc2475.txt


As you may see, the words "interoperability" and 
"compatibility" in your question does not make sense as
DiffServ is supposed to be used in both IPv4 and v6 networks...

-- Tom

-- 
# Tom Kristensen                      (Research Associate) #
## Department of Informatics, University of Oslo          ##
### tel  +47 2285 2532  #  http://www.ifi.uio.no/~tomkri ###

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From diffserv-admin@ietf.org  Tue Oct 16 14:50:38 2001
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Noticed that Intel has a COPS Client SDK at http://www.intel.com/ial/cops 
that supports PIB 04.

Is this the PIB that is going to last call?  If not, any ideas on what  will 
be changing in the next version?


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp


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From diffserv-admin@ietf.org  Tue Oct 16 15:11:50 2001
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Date: Tue, 16 Oct 2001 14:56:40 -0400
To: Jerry F <jerryf60@hotmail.com>
From: "Kwok-Ho Chan" <khchan@nortelnetworks.com>
Subject: Re: [Diffserv] DiffServ PIB
Cc: diffserv@ietf.org
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Jerry:
I am cooking DiffServ PIB-05 for the WG Last Call process.

There are some changes from PIB-04 to PIB-05, in a nutshell:
DiffServ PIB-05 will have all the MIB-14 Scheduler changes.
The layout of shaping with scheduler was changed to match
DiffServ MIB-14.
Section 5 of the text has been re-written.
Capability PRCs of the PIB module has been changed.
Algorithmic Dropper will support the multiple queue measurement
dropper as Walter Weiss requested and it will be backward compatible
with DiffServ MIB-14.

This will be reviewed by the authors next week then available to WG after
that.

-- Kwok --


At 06:32 PM 10/16/01 +0000, Jerry F wrote:

>Noticed that Intel has a COPS Client SDK at http://www.intel.com/ial/cops 
>that supports PIB 04.
>
>Is this the PIB that is going to last call?  If not, any ideas on 
>what  will be changing in the next version?
>
>
>_________________________________________________________________
>Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
>
>
>_______________________________________________
>diffserv mailing list
>diffserv@ietf.org
>https://www1.ietf.org/mailman/listinfo/diffserv
>Archive: 
>http://www2.ietf.org/mail-archive/working-groups/diffserv/current/maillist.html


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From diffserv-admin@ietf.org  Wed Oct 17 06:52:32 2001
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Date: Wed, 17 Oct 2001 15:09:35 +0400
From: sgoorah@uom.ac.mu (Goorah Shravan)
Organization: University of Mauritius
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Hello there,

        I am looking for a limit on the number of entries in the
Forwarding Information Base of a Diffserv-capable router to achieve some
performance.

        What is the relationship between the number of entries
(classification state) in the FIB and the feasible capacity (say, in
bps) for a particular PHB?

Shravan
--
Shravan Goorah
Lecturer, Department of Computer Science,
Faculty of Engineering, University of Mauritius
Tel. 454 1041   Fax.  465 71 44



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From diffserv-admin@ietf.org  Wed Oct 17 08:44:16 2001
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This is an implementation issue and will depend very much on the 
router technology. I suggest asking your question on the
diffserv implemenatation list
http://www.atnf.csiro.au/news/exploders/dsimplementation.html

   Brian

Goorah Shravan wrote:
> 
> Hello there,
> 
>         I am looking for a limit on the number of entries in the
> Forwarding Information Base of a Diffserv-capable router to achieve some
> performance.
> 
>         What is the relationship between the number of entries
> (classification state) in the FIB and the feasible capacity (say, in
> bps) for a particular PHB?
> 
> Shravan
> --
> Shravan Goorah
> Lecturer, Department of Computer Science,
> Faculty of Engineering, University of Mauritius
> Tel. 454 1041   Fax.  465 71 44
> 
> _______________________________________________
> diffserv mailing list
> diffserv@ietf.org
> https://www1.ietf.org/mailman/listinfo/diffserv
> Archive: http://www2.ietf.org/mail-archive/working-groups/diffserv/current/maillist.html

-- 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Brian E Carpenter 
Distinguished Engineer, Internet Standards & Technology, IBM 
On assignment at the IBM Zurich Laboratory, Switzerland
Board Chairman, Internet Society http://www.isoc.org

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From diffserv-admin@ietf.org  Sun Oct 21 13:23:31 2001
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hi all

if we have a situation were we point let say from element to meter , than we
delete the meter , the next field in the element is to be treated as if it
hold 0.0 ,
but should that meter index be returned to the next free list of the meter(
due to tha fact we deleted it ) ?
if so we might create a new meter entry with the same index ( taken from
next free) wich in fact is being pointed to by the element !!! ,
if this meter index should not be returned to the next free list, how can we
seperate it from a meter entry that is not being pointed to and is deleted ?

gain


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From: Fred Baker <fred@cisco.com>
Subject: Re: [Diffserv] diffserv and IPv6
Cc: <diffserv@ietf.org>, <diffserv-interest@ietf.org>
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At 11:32 PM 10/16/2001, Marck Gendra wrote:
>Is there any document related on diffserv and IPv6 compatibility?

yes; the architecture. The same technology is used in IPv4 and IPv6


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Date: Mon, 22 Oct 2001 08:34:01 +0900
To: sgoorah@uom.ac.mu (Goorah Shravan)
From: Fred Baker <fred@cisco.com>
Subject: Re: [Diffserv] Forwarding entries in a Diffserv-capable router
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At 07:09 PM 10/17/2001, Goorah Shravan wrote:
>What is the relationship between the number of entries (classification 
>state) in the FIB and the feasible capacity (say, in bps) for a particular PHB?

I'm not certain that there is any, or that their should be. Diffserv 
classification is about session aggregates, while IP forwarding is about 
destination prefixes. While they could be put together, the resulting FIB 
size wouldn't really buy you anything; you want to think of diffserv 
classification as separate from and orthogonal to forwarding classification.


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From diffserv-admin@ietf.org  Mon Oct 22 14:08:36 2001
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From: Gai Nachum <GaiN@Radlan.co.il>
To: "'Iren, Sami'" <Sami.Iren@marconi.com>,
        "'diffserv@ietf.org'"
	 <diffserv@ietf.org>
Subject: RE: [Diffserv] rowpointer and next free
Date: Mon, 22 Oct 2001 19:37:17 +0200
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first i want to point out that the problem exist in the mib level and not in
the implementation level ,and 
while the sulotion u present is acceptable in implementation level , it is
not a mib compatble one, since there is no 
indication in the mib that says u can not delete an entry that is being
pointed to( or u would never reach a situation
were u point to a non exist entry ), further more no componnet in the mib
knows who or how many other components are 
pointing to it, so i guess am seeking a solution that is supported by the
mib .

thanks

gain
-----Original Message-----
From: Iren, Sami [mailto:Sami.Iren@marconi.com]
Sent: Monday, October 22, 2001 7:19 PM
To: 'Gai Nachum'; diffserv@ietf.org
Subject: RE: [Diffserv] rowpointer and next free


Gain:
In your scenario, you should not delete the meter entry in the first place,
since it is used by an element entry. For this, you need to use
usage counters and unless this counter value is zero, you should
never delete a row.
Regards,
---
Sami Iren 
Marconi Networks
sami.iren@marconi.com 


> -----Original Message-----
> From: Gai Nachum [mailto:GaiN@radlan.co.il]
> Sent: Sunday, October 21, 2001 1:01 PM
> To: diffserv@ietf.org
> Subject: [Diffserv] rowpointer and next free
> 
> 
> hi all
> 
> if we have a situation were we point let say from element to 
> meter , than we
> delete the meter , the next field in the element is to be 
> treated as if it
> hold 0.0 ,
> but should that meter index be returned to the next free list 
> of the meter(
> due to tha fact we deleted it ) ?
> if so we might create a new meter entry with the same index ( 
> taken from
> next free) wich in fact is being pointed to by the element !!! ,
> if this meter index should not be returned to the next free 
> list, how can we
> seperate it from a meter entry that is not being pointed to 
> and is deleted ?
> 
> gain
> 
> 
> _______________________________________________
> diffserv mailing list
> diffserv@ietf.org
> https://www1.ietf.org/mailman/listinfo/diffserv
> Archive: 
> http://www2.ietf.org/mail-archive/working-groups/diffserv/curr
ent/maillist.html

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From diffserv-admin@ietf.org  Mon Oct 22 14:08:48 2001
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From: "Iren, Sami" <Sami.Iren@marconi.com>
To: "'Gai Nachum'" <GaiN@radlan.co.il>, diffserv@ietf.org
Subject: RE: [Diffserv] rowpointer and next free
Date: Mon, 22 Oct 2001 13:18:32 -0400
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Gain:
In your scenario, you should not delete the meter entry in the first place,
since it is used by an element entry. For this, you need to use
usage counters and unless this counter value is zero, you should
never delete a row.
Regards,
---
Sami Iren 
Marconi Networks
sami.iren@marconi.com 


> -----Original Message-----
> From: Gai Nachum [mailto:GaiN@radlan.co.il]
> Sent: Sunday, October 21, 2001 1:01 PM
> To: diffserv@ietf.org
> Subject: [Diffserv] rowpointer and next free
> 
> 
> hi all
> 
> if we have a situation were we point let say from element to 
> meter , than we
> delete the meter , the next field in the element is to be 
> treated as if it
> hold 0.0 ,
> but should that meter index be returned to the next free list 
> of the meter(
> due to tha fact we deleted it ) ?
> if so we might create a new meter entry with the same index ( 
> taken from
> next free) wich in fact is being pointed to by the element !!! ,
> if this meter index should not be returned to the next free 
> list, how can we
> seperate it from a meter entry that is not being pointed to 
> and is deleted ?
> 
> gain
> 
> 
> _______________________________________________
> diffserv mailing list
> diffserv@ietf.org
> https://www1.ietf.org/mailman/listinfo/diffserv
> Archive: 
> http://www2.ietf.org/mail-archive/working-groups/diffserv/curr
ent/maillist.html

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From diffserv-admin@ietf.org  Mon Oct 22 15:44:32 2001
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To: Gai Nachum <GaiN@radlan.co.il>
Cc: "'Iren, Sami'" <Sami.Iren@marconi.com>,
        "'diffserv@ietf.org'" <diffserv@ietf.org>
Subject: Re: [Diffserv] rowpointer and next free
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As far as I can tell, this isn't a problem of *this* MIB in particular;
it's the fact that MIBs in general don't include a mechanism for
avoiding dangling pointers. That's an implementation issue as far
as diffserv is concerned. If you want to handle the generic
problem, that is an issue for the IETF Operations and Management
area.

   Brian

Gai Nachum wrote:
> 
> first i want to point out that the problem exist in the mib level and not in
> the implementation level ,and
> while the sulotion u present is acceptable in implementation level , it is
> not a mib compatble one, since there is no
> indication in the mib that says u can not delete an entry that is being
> pointed to( or u would never reach a situation
> were u point to a non exist entry ), further more no componnet in the mib
> knows who or how many other components are
> pointing to it, so i guess am seeking a solution that is supported by the
> mib .
> 
> thanks
> 
> gain
> -----Original Message-----
> From: Iren, Sami [mailto:Sami.Iren@marconi.com]
> Sent: Monday, October 22, 2001 7:19 PM
> To: 'Gai Nachum'; diffserv@ietf.org
> Subject: RE: [Diffserv] rowpointer and next free
> 
> Gain:
> In your scenario, you should not delete the meter entry in the first place,
> since it is used by an element entry. For this, you need to use
> usage counters and unless this counter value is zero, you should
> never delete a row.
> Regards,
> ---
> Sami Iren
> Marconi Networks
> sami.iren@marconi.com
> 
> > -----Original Message-----
> > From: Gai Nachum [mailto:GaiN@radlan.co.il]
> > Sent: Sunday, October 21, 2001 1:01 PM
> > To: diffserv@ietf.org
> > Subject: [Diffserv] rowpointer and next free
> >
> >
> > hi all
> >
> > if we have a situation were we point let say from element to
> > meter , than we
> > delete the meter , the next field in the element is to be
> > treated as if it
> > hold 0.0 ,
> > but should that meter index be returned to the next free list
> > of the meter(
> > due to tha fact we deleted it ) ?
> > if so we might create a new meter entry with the same index (
> > taken from
> > next free) wich in fact is being pointed to by the element !!! ,
> > if this meter index should not be returned to the next free
> > list, how can we
> > seperate it from a meter entry that is not being pointed to
> > and is deleted ?
> >
> > gain
> >
> >
> > _______________________________________________

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Subject: Re: [Diffserv] Forwarding entries in a Diffserv-capable router
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>
>       What is the relationship between the number of entries
> (classification state) in the FIB and the feasible capacity (say, in
> bps) for a particular PHB?
>


Shravan,

Support for multiple PHBs does not require support for multiple FIBs.
Classification merely determines the PHB that is expected to be 
provided in the network for that packet.  The capacity or BW for a 
PHB will be determined by the PHB itself, the PHB queue,  the 
scheduler servicing the queue and the overall performance requirements
(delay and jitter) for the PHB. You may see drafts on "Diffserv-aware Traffic 
Engineering" to get some hints on performance requirements for different PHBs.
Hope that is helpful.

--Sitaram




--part1_cb.17f7227c.2905e67f_boundary
Content-Type: text/html; charset="US-ASCII"
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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>
<BR>
<BR>&gt;
<BR>&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;What is the relationship between the number of entries
<BR>&gt; (classification state) in the FIB and the feasible capacity (say, in
<BR>&gt; bps) for a particular PHB?
<BR>&gt;
<BR>
<BR>
<BR>Shravan,
<BR>
<BR>Support for multiple PHBs does not require support for multiple FIBs.
<BR>Classification merely determines the PHB that is expected to be 
<BR>provided in the network for that packet. &nbsp;The capacity or BW for a 
<BR>PHB will be determined by the PHB itself, the PHB queue, &nbsp;the 
<BR>scheduler servicing the queue and the overall performance requirements
<BR>(delay and jitter) for the PHB. You may see drafts on "Diffserv-aware Traffic 
<BR>Engineering" to get some hints on performance requirements for different PHBs.
<BR>Hope that is helpful.
<BR>
<BR>--Sitaram
<BR>
<BR>
<BR></FONT></HTML>

--part1_cb.17f7227c.2905e67f_boundary--

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From: "Iren, Sami" <Sami.Iren@marconi.com>
To: "'Brian E Carpenter'" <brian@hursley.ibm.com>,
        Gai Nachum
	 <GaiN@radlan.co.il>
Cc: "Iren, Sami" <Sami.Iren@marconi.com>,
        "'diffserv@ietf.org'"
	 <diffserv@ietf.org>
Subject: RE: [Diffserv] rowpointer and next free
Date: Mon, 22 Oct 2001 18:25:04 -0400
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I agree with Brian, this is an implementation issue
and the solution included in my previous mail
actually comes from the MIB draft (v14). 
Section 4.3 of the draft says:

"To simplify management creation and deletion of rows in this MIB, the
agent is expected to assist in maintaining its consistency. It may
accomplish this by maintaining internal usage counters for any row that
might be pointed to by a RowPointer, or by any equivalent means.  When a
RowPointer is created or written, and the row it points to does not
exist, the SET returns an inconsistentValue  error. When a RowStatus
variable is set to 'destroy' but the usage counter is non-zero, the SET
returns no error but the indicated row is left intact. The agent should
later remove the row in the event that the usage counter becomes zero."

I hope this helps.
--Sami

> -----Original Message-----
> From: Brian E Carpenter [mailto:brian@hursley.ibm.com]
> Sent: Monday, October 22, 2001 3:33 PM
> To: Gai Nachum
> Cc: 'Iren, Sami'; 'diffserv@ietf.org'
> Subject: Re: [Diffserv] rowpointer and next free
> 
> 
> As far as I can tell, this isn't a problem of *this* MIB in 
> particular;
> it's the fact that MIBs in general don't include a mechanism for
> avoiding dangling pointers. That's an implementation issue as far
> as diffserv is concerned. If you want to handle the generic
> problem, that is an issue for the IETF Operations and Management
> area.
> 
>    Brian
> 
> Gai Nachum wrote:
> > 
> > first i want to point out that the problem exist in the mib 
> level and not in
> > the implementation level ,and
> > while the sulotion u present is acceptable in 
> implementation level , it is
> > not a mib compatble one, since there is no
> > indication in the mib that says u can not delete an entry 
> that is being
> > pointed to( or u would never reach a situation
> > were u point to a non exist entry ), further more no 
> componnet in the mib
> > knows who or how many other components are
> > pointing to it, so i guess am seeking a solution that is 
> supported by the
> > mib .
> > 
> > thanks
> > 
> > gain
> > -----Original Message-----
> > From: Iren, Sami [mailto:Sami.Iren@marconi.com]
> > Sent: Monday, October 22, 2001 7:19 PM
> > To: 'Gai Nachum'; diffserv@ietf.org
> > Subject: RE: [Diffserv] rowpointer and next free
> > 
> > Gain:
> > In your scenario, you should not delete the meter entry in 
> the first place,
> > since it is used by an element entry. For this, you need to use
> > usage counters and unless this counter value is zero, you should
> > never delete a row.
> > Regards,
> > ---
> > Sami Iren
> > Marconi Networks
> > sami.iren@marconi.com
> > 
> > > -----Original Message-----
> > > From: Gai Nachum [mailto:GaiN@radlan.co.il]
> > > Sent: Sunday, October 21, 2001 1:01 PM
> > > To: diffserv@ietf.org
> > > Subject: [Diffserv] rowpointer and next free
> > >
> > >
> > > hi all
> > >
> > > if we have a situation were we point let say from element to
> > > meter , than we
> > > delete the meter , the next field in the element is to be
> > > treated as if it
> > > hold 0.0 ,
> > > but should that meter index be returned to the next free list
> > > of the meter(
> > > due to tha fact we deleted it ) ?
> > > if so we might create a new meter entry with the same index (
> > > taken from
> > > next free) wich in fact is being pointed to by the element !!! ,
> > > if this meter index should not be returned to the next free
> > > list, how can we
> > > seperate it from a meter entry that is not being pointed to
> > > and is deleted ?
> > >
> > > gain
> > >
> > >
> > > _______________________________________________
> 

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From diffserv-admin@ietf.org  Tue Oct 23 07:23:27 2001
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--NextPart

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Differentiated Services Working Group of the IETF.

	Title		: Management Information Base for the Differentiated 
                          Services Architecture
	Author(s)	: F. Baker, K. Chan, A. Smith
	Filename	: draft-ietf-diffserv-mib-15.txt
	Pages		: 127
	Date		: 22-Oct-01
	
This memo describes an SMIv2 MIB for a device implementing the
Differentiated Services Architecture.  It may be used both for
monitoring and configuration of a router or switch capable of
Differentiated Services functionality.

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diffservers,
We asked for an hour at SLC in case there were any open issues,
but the MIB and Model have moved along and we haven't seen a
new PIB, so there haven't been any issues. In fact, since the
mailing list has been pretty quiet, there seem not to be
any issues at the moment.

As for PDBs, it appears everyone is out implementing?

Brian and I need to know if anyone thinks there are issues
that we need to meet to resolve.

	Kathie

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