Re: [v6ops] A broken promise - "You said PD Prefix Valid Lifetime is going to be X"

Owen DeLong <owen@delong.com> Fri, 01 November 2019 18:24 UTC

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From: Owen DeLong <owen@delong.com>
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Date: Fri, 1 Nov 2019 11:23:54 -0700
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Cc: sthaug@nethelp.no, v6ops@ietf.org
To: Ted Lemon <mellon@fugue.com>
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Subject: Re: [v6ops] A broken promise - "You said PD Prefix Valid Lifetime is going to be X"
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> On Nov 1, 2019, at 9:47 AM, Ted Lemon <mellon@fugue.com> wrote:
> 
> On Nov 1, 2019, at 12:42 PM, Owen DeLong <owen@delong.com <mailto:owen@delong.com>> wrote:
>> I’m not even saying this is necessarily an invalid approach. We all know
>> (or at least should know) that the margins in this industry don’t support
>> the cost involved in doing things differently,
> 
> I don’t think that’s the issue.   I think the issue is that “no flash renumbering” is a nice-to-have, not a must, because the layers above layer two can adapt when layer two breaks.   We’ve done a lot of efforts to try to fix this problem at layer two, and none of them have succeeded.

Flash renumbering is NOT a layer 2 issue, it’s a layer 3 issue.

> This is not to say that making layer two as solid as possible shouldn’t be a goal; just that it is merely one of the tools we have for making the network reliable, not the /only/ tool.

Yeah, but we’re really talking more about layer 3 than layer 2 here.

Owen