[rbridge] Consensus Check: Point to Point links

sgai at nuovasystems.com (Silvano Gai) Thu, 04 October 2007 05:12 UTC

From: "sgai at nuovasystems.com"
Date: Wed, 03 Oct 2007 22:12:07 -0700
Subject: [rbridge] Consensus Check: Point to Point links
In-Reply-To: <470474B4.20901@isi.edu>
References: <3870C46029D1F945B1472F170D2D9790031840BA@de01exm64.ds.mot.com><941D5DCD8C42014FAF70FB7424686DCF01B370EA@eusrcmw721.eamcs.ericsson.se> <4703CE6C.7090306@isi.edu> <78C9135A3D2ECE4B8162EBDCE82CAD77024E9567@nekter> <941D5DCD8C42014FAF70FB7424686DCF01B373E8@eusrcmw721.eamcs.ericsson.se><4703DF1E.8020904@isi.edu> <47043291.5080201@cisco.com> <34BDD2A93E5FD84594BB230DD6C18EA2022DDB6D@nuova-ex1.hq.nuovaimpresa.com> <470474B4.20901@isi.edu>
Message-ID: <34BDD2A93E5FD84594BB230DD6C18EA2022DDB82@nuova-ex1.hq.nuovaimpresa.com>

Joe,

The majority of RBridges will be deployed in backbone where they will be
connected by point-to-point links. The classical case will be 10GE links
(which are only full-duplex). There will be no bridges between them.

What we are asking is a sentence that guarantees a simplified
interoperability in this case.

I don't see what harm it can do.

-- Silvano


> -----Original Message-----
> From: Joe Touch [mailto:touch at ISI.EDU]
> Sent: Wednesday, October 03, 2007 10:06 PM
> To: Silvano Gai
> Cc: Dinesh G Dutt; Rbridge at postel.org; Caitlin Bestler
> Subject: Re: [rbridge] Consensus Check: Point to Point links
> 
> I can't speak for others, but I'm completely lost on this point.
Rbridge
> is defining a layer on top of ethernet. This pt-pt link stuff sounds
> like it's redefining the ethernet layer for a special case.
> 
> Whether it's useful to have ethernet have a definition for a pt-pt
case
> is not relevant to this WG, IMO. It seems at best out of scope, even
if
> it is useful.
> 
> Can anyone explain why this shouldn't be already handled by ethernet,
> and if it isn't, why we need to handle it as a special case here?
> 
> Joe
> 
> Silvano Gai wrote:
> > I totally agree with Dinesh
> >
> > -- Silvano
> >
> >> -----Original Message-----
> >> From: rbridge-bounces at postel.org
[mailto:rbridge-bounces at postel.org]
> > On
> >> Behalf Of Dinesh G Dutt
> >> Sent: Wednesday, October 03, 2007 5:24 PM
> >> To: Joe Touch
> >> Cc: Rbridge at postel.org; Caitlin Bestler
> >> Subject: Re: [rbridge] Consensus Check: Point to Point links
> >>
> >> The reason this is useful in the spec is that we can have
> >> interoperability. The situation is common enough that allowing
> >> interoperability simplifies implementations.
> >>
> >> Dinesh
> >> Joe Touch wrote:
> >>> Eric Gray wrote:
> >>>
> >>>> Caitlin,
> >>>>
> >>> ...
> >>>
> >>>> I get the sense that you're not disagreeing with either Joe or
> >>>> myself.
> >>>>
> >>> I agree with the nuances Caitlin is raising; the conclusion is
that
> > this
> >>> need not be in the spec, as far as we three appear to agree.
> >>>
> >>> Joe
> >>>
> >>>
> >>>
> >
------------------------------------------------------------------------
> >>> _______________________________________________
> >>> rbridge mailing list
> >>> rbridge at postel.org
> >>> http://mailman.postel.org/mailman/listinfo/rbridge
> >>>
> >> --
> >> We make our world significant by the courage of our questions and
by
> >> the depth of our answers.                               - Carl
Sagan
> >> _______________________________________________
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> >> rbridge at postel.org
> >> http://mailman.postel.org/mailman/listinfo/rbridge