RE: [PWE3] Inter-op is not necessary

["Serbest, Yetik" <Yetik_Serbest at labs.sbc.com>]

I would like to see some discussion on the following questions raised
for MS-RVP:
- Addressing
- Scalability
- Inter-operability with FEC128

For now, my votes are as follows:

Q1. Are you in favor of moving MS-LDP forward as WG draft?
YES

Q2. Are you against moving MS-LDP forward?
NO

Q3. Are you in favor of moving MS-RSVP forward as WG draft?
ABSTAIN

Q4. Are you against moving MS-RSVP forward?
ABSTAIN

Q5. Are you in favor of a single solution?
YES

Thanks,
yetik

-----Original Message-----
From: pwe3-bounces at ietf.org [mailto:pwe3-bounces at ietf.org] On Behalf Of
Gray, Eric
Sent: Wednesday, November 23, 2005 8:45 AM
To: 'Stewart Bryant'
Cc: pwe3
Subject: RE: [PWE3] Inter-op is not necessary

Stewart,

	I've yet to see any indication on this mailing list that
anyone disagrees with what Ray said.  In fact, it is so obvious
a statement that many have simply not bothered to repeat it.

	Of course backward compatibility and - at least potential
- migration mechanisms/strategies are required.  It is that sad
consideration that makes avoidance of a two-protocol solution
difficult.

	MS-PW needs to be backward compatible with SS-PW.  MS-TE
also needs to be backward compatible with SS-TE.  Compatibility
for SS-PW and MS-PW seems to argue for compatible extensions to 
LDP.  Compatibility for SS-TE and MS-TE (or TE and PCE) likewise
argues for compatible extensions to RSVP-TE.  So eventually we 
either end up with backward compatibility complexity or a two-
protocol solution.

--
Eric

--> -----Original Message-----
--> From: pwe3-bounces at ietf.org [mailto:pwe3-bounces at ietf.org] 
--> On Behalf Of Stewart Bryant
--> Sent: Wednesday, November 23, 2005 4:04 AM
--> To: Ray Qiu; pwe3
--> Subject: Re: [PWE3] Inter-op is not necessary
--> 
--> Well I work for a vendor, but I agree with Ray.
--> 
--> Requiring the upgrade of boxes built to the PWE3-WG SS-PW 
--> spec is not acceptable. We have to be backwards compatible 
--> with our phase-1 design.
--> 
--> - Stewart
--> 
--> 
--> Ray Qiu wrote:
--> 
--> > A simple answer like "just upgrade your box" doesn't do 
--> any good for 
--> > service providers.  If a provider is providing LDP based 
--> SS-PWs today, 
--> > they would have to upgrade all their boxes and 
--> re-provision the SS-PW 
--> > services when MS-PW is introduced. This is not desirable.
--> >
--> > --Ray
--> >
--> > On 11/18/05, Busschbach, Peter B (Peter) <busschbach at lucent.com 
--> > <mailto:busschbach at lucent.com>> wrote:
--> >
--> >     I plead guilty. But could you explain how a provider 
--> would look at it?
--> >      
--> >
--> >         -----Original Message-----
--> >         From: Ray Qiu [mailto:ray.qiu at gmail.com
--> >         <mailto:ray.qiu at gmail.com>]
--> >         Sent: Friday, November 18, 2005 2:15 PM
--> >         To: Busschbach, Peter B (Peter)
--> >         Cc: Shah, Himanshu; Gray, Eric; Andrew G. Malis; 
--> Drake, John
--> >         E; Thomas D. Nadeau; Yaakov Stein; pwe3 at ietf.org
--> >         <mailto:pwe3 at ietf.org>; Mark Townsley
--> >         Subject: Re: [PWE3] Inter-op is not necessary
--> >
--> >         It is so obvious that the answer came from a vendor not a
--> >         provider.  
--> >
--> >         --Ray
--> >
--> >         On 11/18/05, Busschbach, Peter B (Peter) <
--> >         busschbach at lucent.com 
--> <mailto:busschbach at lucent.com>> wrote:
--> >
--> >             The interop discussion has many facets. One 
--> of them seems
--> >             to be the notion that there are existing SS-PW devices
--> >             supporting LDP, with which any new solution 
--> must be able
--> >             to interwork.
--> >
--> >             The answer is easy: upgrade the legacy 
--> equipment with new
--> >             software so that it supports whatever 
--> solution is selected
--> >             for MS-PWs. 
--> >
--> 
--> _______________________________________________
--> pwe3 mailing list
--> pwe3 at ietf.org
--> https://www1.ietf.org/mailman/listinfo/pwe3
--> 

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