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RE: [PWE3] Inter-op is not necessary

Eric,

Yeah, but we don't want to restrict it to a single administrative domain. I also agree with many of the others in the meeting - let's choose one and move on. I'm not a fan of "let the market decide" because in the end, as a vendor you have to do both - especially if big vendor a goes one way, big vendor b goes the other, and everyone else needs to interoperate with both a and b. And most times, even the big vendors find that their customers want them to interoperate with their competition, so they end up doing it both ways as well.

The only way we should approve both is if we can define a completely dynamic interface between the two that requires no more provisioning by the service providers than if we had only chosen one. Otherwise, we're shortchanging the operators and the rest of the community.

Cheers,
Andy

-------

At 11/14/2005 18:39 -0200, Gray, Eric wrote: 
Yaakov,

        This is a very narrow view of the purpose for multi-segment
pseudo-wires.  There are applications for pseudo-wire stitching
within a single administrative domain.

--
Eric

--> -----Original Message-----
--> From: pwe3-bounces at ietf.org [mailto:pwe3-bounces at ietf.org]
--> On Behalf Of Yaakov Stein
--> Sent: Monday, November 14, 2005 3:14 PM
--> To: Mark Townsley; pwe3 at ietf.org
--> Subject: RE: [PWE3] Inter-op is not necessary
-->
-->
--> > To be clear, I said that "coexistance" was a necessity to be
--> documented by the WG.
--> > Whether coexistance equates to interworking depends on the MS
--> requirements.
-->
--> Since the whole idea of MPLS MS-PWs is to facilitate the
--> interworking of different operators, as far as I see
--> coexistence must mean either
-->
--> 1) fully interwork
--> 2) mandate that they never have to cooperate.
-->
--> The latter would probably end up with everyone having to
--> support both signaling protocols, and often setting up
--> additional PWs just to circumvent the limitation.
-->
--> Y(J)S



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