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Re: [External] Request for information - Challenges in routing related to semantic addressing

Geoff Huston <gih@apnic.net> Fri, 02 April 2021 20:29 UTC

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Subject: Re: [External] Request for information - Challenges in routing related to semantic addressing
From: Geoff Huston <gih@apnic.net>
In-Reply-To: <CAOj+MMGMBMWJhE9tuaXa5sKhrzYa0duuNJPx4bCRphFTYiLUCA@mail.gmail.com>
Date: Sat, 03 Apr 2021 07:29:38 +1100
Cc: "King, Daniel" <d.king@lancaster.ac.uk>, adrian <adrian@olddog.co.uk>, "draft-king-irtf-challenges-in-routing@ietf.org" <draft-king-irtf-challenges-in-routing@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, Robert Raszuk <robert@raszuk.net>
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References: <02d401d701fd$25905a90$70b10fb0$@olddog.co.uk> <CADnDZ88mA7B_a1MUYnXSviD5wjNL3sbqaqrbK0u3NXi6OqeNAA@mail.gmail.com> <CWXP265MB2087CD3D4A4B7EB370EBD534D6889@CWXP265MB2087.GBRP265.PROD.OUTLOOK.COM> <006800FC-8628-4F09-92DB-745E75B6DB4F@apnic.net> <79C06A8C-3998-4426-98A4-934C76F92A44@gigix.net> <CAOj+MMGMBMWJhE9tuaXa5sKhrzYa0duuNJPx4bCRphFTYiLUCA@mail.gmail.com>
To: Luigi Iannone <ggx@gigix.net>
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> On 2 Apr 2021, at 9:08 pm, Robert Raszuk <robert@raszuk.net> wrote:
> 
> Luigi,
>  
> Are you saying that the operator can give whatever semantic they wish to their addresses? We do not care?
> 
> That shipped has already left the harbour ... about 30 years ago. The moment policy routing was introduced which allowed match on IP address or recently its portion means that operator can apply whatever semantics to the addresses as it seems to fit his needs. 
> 
> The gap between router itself applying such semantics vs need to explicitly configure it is IMO irrelevant.. Modern OS have so much flexibility in defining packet processing pipelines that spending time on what network elements can or can not (should or should not) be doing is frankly a waste of time :) 
> 
> Cheers,
> R.
> 
>  

I agree with Robert - that ship left the harbour decades ago!


Geoff

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