Re: [PCN] Consensus questions: Q1, Q2, and Q3.

Steven, yes to all 3. I add some notes to clarify my viewpoint.

Q1 - yes, I support a Standards track encoding with two PCN encoding
states

Q2 - yes, I support an Experimental track encoding that extends the
Standards track encoding to give an extra PCN encoding state

Q3 - yes, I believe there is enough information now for the PCN WG to
make its decisions immediately about the Standards track elements of its
Charter, ie the encoding(*) and the PCN-interior-node's marking
behaviours. 
(*) including the Exptal encoding of Q2. 
The recent discussion on the list has (as far as I can tell) not raised
any substantive new issue; it's a re-statement of the ECMP issue, which
is known to be an issue. (And incidentally was a known issue for NSIS -
which suggests it's a fundamental characteristic of a system with both
ECMP and flow admission control. That simply means the user of PCN has
to recognise the issue and either be appropriately cautious or use one
of the known, but not wholly satisfactory, solutions.)

Best wishes and Happy Easter!
Phil/ 

> -----Original Message-----
> From: pcn-bounces@ietf.org [mailto:pcn-bounces@ietf.org] On Behalf Of
> Steven Blake
> Sent: 18 March 2008 17:08
> To: pcn
> Subject: [PCN] Concensus questions: Q1, Q2, and Q3.
> 
> Six consensus questions were taken during the IETF 71 meeting.  I
would
> now like to raise them on the list.  I will do this in step-wise
> fashion.
> 
> Q1: As an initial standardization activity, should the PCN wg produce
a
>     standards-track PCN scheme that requires only two encoding states?
>     (Note: this question does not presume that the solution is Single
>     Marking).
> 
> Q2: Presuming consensus in favor of Q1, should the PCN wg produce one
or
>     more experimental-track extensions to the standards-track PCN
scheme
>     that require another encoding state (for a total of three encoding
>     states)?
> 
> Q3: Does the PCN working group have enough information to make a
>     decision about the way forward for the standards-track PCN scheme?
> 
> By my notes, Q1 was accepted in the meeting 8-0, Q2 was accepted 9-0,
> and Q3 was accepted 6-1 (but my notes are fuzzy on Q3's result).
> 
> Please send comments to the list during the next few days.
> 
> 
> Regards,
> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Steven Blake                <steven.blake@ericsson.com>
> Ericsson/Redback Networks               +1 919-472-9913
> 
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