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Re: [v6ops] FYI: Microsoft's latest on CLAT

Ole Troan <otroan@employees.org> Fri, 08 March 2024 11:15 UTC

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From: Ole Troan <otroan@employees.org>
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Date: Fri, 08 Mar 2024 12:14:50 +0100
Cc: Tommy Jensen <Jensen.Thomas=40microsoft.com@dmarc.ietf.org>, "v6ops@ietf.org" <v6ops@ietf.org>
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To: Lorenzo Colitti <lorenzo=40google.com@dmarc.ietf.org>
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Subject: Re: [v6ops] FYI: Microsoft's latest on CLAT
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Lorenzo,

I’m also a fan of IPv6-mostly.
Isn’t it too early to state that it has lower operational cost than dual-stack (or IPv4 only)?
What I mostly(sic) like about it, is that it provides a clearer path towards IPv6 only than dual stack.

But I would imagine at least for the short term there are going to be quite a few operational wrinkles to sort out. It’s likely harder to troubleshoot IPv4 problems too. And I don’t think it even works on my DHCPv6 single address assigned network at all (yet to be tested).

Cheers,
Ole

> On 8 Mar 2024, at 04:52, Lorenzo Colitti <lorenzo=40google.com@dmarc.ietf.org> wrote:
> 
> Great to hear! I think this means that all the major platforms will support the "IPv6-mostly" operational model that v6ops has been working on for the past few years. That's super important, because it means that any network can use this model with confidence that all their clients will work.
> 
> Hopefully this will really help adoption of this model in enterprise networks. Dual-stack is expensive to operate, but if IPv6-only works, then any enterprise that wants to support IPv6 in some form can simply skip directly from IPv4-only to IPv6-mostly without having to worry about the costs of dual-stack at all.
> 
> On Fri, Mar 8, 2024 at 5:05 AM Tommy Jensen <Jensen.Thomas=40microsoft.com@dmarc.ietf.org> wrote:
> Good day v6ops,
> 
> As a general IPv6 FYI, I'll share Windows' announcement to bring CLAT to general networking interfaces which went live today: https://techcommunity.microsoft.com/t5/networking-blog/windows-11-plans-to-expand-clat-support/ba-p/4078173
> 
> Looking forward to seeing everyone in Brisbane and talking about CLAT recommendations, the draft Jen and I are coauthoring, as Windows will be an implementor!
> 
> Thanks,
> Tommy
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