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Re: [Idr] Vendor Defaults (was Re: Review of draft-ietf-large-community-06.txt)

t.petch <ietfc@btconnect.com> Mon, 07 November 2016 17:54 UTC

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From: "t.petch" <ietfc@btconnect.com>
To: Peter Hessler <phessler@theapt.org>, idr@ietf.org
References: <CAH1iCiq6jNtnkta0Bt952EQ9zOKSGt=_cCySsT5XuOKuHYO2nQ@mail.gmail.com> <86860386-9C2B-4BD5-B457-2A6DA5446CF3@cisco.com> <20161106040849.GB18931@shrubbery.net> <5BD3C90E-CC0E-42D2-9ACD-5787FC75BF0A@cisco.com> <20161106194258.GB5113@pfrc.org> <CA+b+ERnEDrPi4SAR9_R1zmwbYCE9aQEQjZN8tK09Y8csMDchVw@mail.gmail.com> <20161107102306.GV24817@gir.theapt.org>
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Subject: Re: [Idr] Vendor Defaults (was Re: Review of draft-ietf-large-community-06.txt)
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----- Original Message -----
From: "Peter Hessler" <phessler@theapt.org>
To: <idr@ietf.org>
Sent: Monday, November 07, 2016 10:23 AM

> On 2016 Nov 06 (Sun) at 22:50:24 +0100 (+0100), Robert Raszuk wrote:
> :I really wanted to make sure that large is deployed with defaults
which
> :make most sense and such defaults are identical between
implementations.
> :And we can do it now or never as when the code is shipped out in
first
> :production release the gave is over.
>
> In OpenBGPD our default is to propagate communities; normal, extended,
> and large.
>
> We have no intention on changing that default.
>
> Additionally, I see no reason why implementations should be have
> identical defaults.  Cisco is not OpenBGPD, OpenBGPD is not Huewai,
and
> Huewai is not Quagga.
>
> This is implementation specific, and has nothing to do with the
> standardization process.

Peter

I think that that is spot on.

Customers will expect consistent behaviour from a supplier (and equally
should be prepared for change if and when they change supplier).

Of course, it may not always be that straightforward as implementations
need to interoperate, first and foremost; but if they have been doing
that, albeit not following the precise specification of a transitive
attribute, then I think that consistency is what is needed.

Tom Petch







>
> --
> I am so optimistic about beef prices that I've just leased a pot roast
> with an option to buy.
>
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