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Re: [v6ops] PI [ULA draft revision #2 Regarding isolated networks]

Ted Lemon <ted.lemon@nominum.com> Sun, 01 June 2014 20:32 UTC

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From: Ted Lemon <ted.lemon@nominum.com>
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Date: Sun, 01 Jun 2014 16:31:52 -0400
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To: Philip Homburg <pch-v6ops-3a@u-1.phicoh.com>
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Subject: Re: [v6ops] PI [ULA draft revision #2 Regarding isolated networks]
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On Jun 1, 2014, at 4:24 PM, Philip Homburg <pch-v6ops-3a@u-1.phicoh.com> wrote:
> Nice how this thread evolves:
> - Use PI space, it works (but is not really scalable)
> - No, no, get with the program. Get multi-homed on PA.
> - We don't actually have anything for servers and multi-homed PA.
> - Every piece of software has to do HE because of how multi-homed PA fails.
> 
> Great way of advertising IPv6.

Every piece of software that uses the network has to use DNS for ease-of-use, and has to use some kind of API to establish connections or send datagrams.   There is no reason why this API can't do happy eyeballs for the application without requiring any complexity _in_ the application.   Indeed, the API provided by Apple already provides this capability for free.

In comparison to what most apps have to do to work because of the higher-layer protocols they use (e.g., RESTful APIs have to support HTTP and TLS, streaming APIs have to support loss detection and data rate adaptation), doing happy eyeballs is the picture of simplicity.   The only reason it seems like it's not is that your mental model of a network API is (apparently) the BSD sockets API, which, while extremely useful, is pretty bare-bones.

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