Re: Summary of proposed changes to draft-gont-tsvwg-source-quench

Fred Baker <fred@cisco.com> Thu, 02 December 2010 03:14 UTC

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Subject: Re: Summary of proposed changes to draft-gont-tsvwg-source-quench
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From: Fred Baker <fred@cisco.com>
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Date: Wed, 1 Dec 2010 21:15:52 -0600
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To: Fernando Gont <fernando@gont.com.ar>
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Cc: "gorry@erg.abdn.ac.uk" <gorry@erg.abdn.ac.uk>, tsvwg <tsvwg@ietf.org>, Dan Wing <dwing@cisco.com>, Antonio.DeSimone@jhuapl.edu
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On Dec 1, 2010, at 5:20 PM, Fernando Gont wrote:

>> Do you expect folks to be building new IPv4 routers at some
>> point in the future? 
> 
> Yes, as much as they build new IPv6 routers. -- put another way, I don't
> think ipv6-only routers will be shipped in the near term. e.g., anyone
> entering the business would have to implement both IPv4 and IPv6 (unless
> they base their products on existing code, of course).

Two different questions. If I build a new bit of hardware and port an old bit of code to it, it will still do what the old bit of code did. Yes, there will be routers that implement IPv4 functionality; there are currently "new" routers that implement DECNET IV, XNS, Novell Netware, and OSI CLNS. Are there any that will do so with new functionality? Not on your life.

Are you expecting folks to build IPv4 routers that try to interpret source quench?