Re: [v6ops] Stability and Resilience (was Re: A common...)

Fernando Gont <fgont@si6networks.com> Sat, 23 February 2019 08:22 UTC

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Subject: Re: [v6ops] Stability and Resilience (was Re: A common...)
To: Lee Howard <lee@asgard.org>, David Farmer <farmer@umn.edu>
Cc: IPv6 Ops WG <v6ops@ietf.org>, 6man WG <ipv6@ietf.org>
References: <6D78F4B2-A30D-4562-AC21-E4D3DE019D90@consulintel.es> <B6E2EC33-EEAF-40D0-AFCC-BDAFA9134ACD@consulintel.es> <20190220113603.GK71606@Space.Net> <28fbc2c305c640c9afb3704050f6e8d7@boeing.com> <20190220213107.GS71606@Space.Net> <019c552eb1624d348641d6930829fd1f@boeing.com> <CAKD1Yr0HBG+rhyFWg9zh0t3mW486Mjx9umjn+CRqAZg4z9r0dg@mail.gmail.com> <20190221073530.GT71606@Space.Net> <CAO42Z2wmB2W52b4MZ2h9sW5E9cQKm-HRjyf--q8C26jezS7LXQ@mail.gmail.com> <a73818d31db7422b99a524bc431b00ed@boeing.com> <CAO42Z2z9-48Gbb_Exf+oWUqDO=axSLpZBtqeDcxkAoFq5OziGw@mail.gmail.com> <0629af5e-5e1b-7e01-5bf4-b288a2d36809@asgard.org> <CAN-Dau0UsVpcZ4TRraQLR9GrqenrCgmh3yq67DaXBXv1SPywJg@mail.gmail.com> <b531ed25-aa3e-0625-7da2-3fe254bf712f@asgard.org> <CAN-Dau2GDrYtGi+THiJD+oQ4weSyw8n2EOLaqst7en=cL_u9aw@mail.gmail.com> <79d9ab60-999f-85e3-7551-9dc6c0c400b4@asgard.org>
From: Fernando Gont <fgont@si6networks.com>
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Date: Sat, 23 Feb 2019 05:20:40 -0300
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On 22/2/19 19:01, Lee Howard wrote:
> 
> On 2/22/19 4:40 PM, David Farmer wrote:
>> Yes, at a very high level, it boils down to the same thing.  However,
>> saying "as much as possible", set a very wide standard, providing few
>> parameters to set expectations seems useful and helpful in developing
>> a consensus. For example, if someone says it is impossible for their
>> solution to ever issues the same prefix, they need to be told they
>> should probably find a different solution.
> 
> Hmm. Has anyone said it's impossible to ever issue the same prefix?
> 
> And even if they did, is it in charter for us to say, "You bought the
> wrong gear, buy something else"?
> 
> We're kind of arguing the definition of "possible," I think.

We can (in a different, unrelated document, that has nothing to do with
the problem we are discussing :-) ) discuss trade-offs between stable vs
dynamic prefixes, and provide advice on how to achieve each.

Mandating one or the other is, at best, unrealistic. -- but not as much
as expecting to solve the problem being discussed by having ISPs to
change their existing deployments according to a "mandate" from our side....

-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492