Re: [RRG] On "jack-down" models

["Victor Grishchenko" <victor.grishchenko@gmail.com>]

It seems, you exclusively assume incremental as-an-upgrade
deployability. There are also other scenarios. Take Ethernet,
for instance. It incrementally ate a lot of competing/legacy
technologies without compromising own architectural purity.
Hypothetically, if some new **layer** of routing is able to
a) substitute the need for "serious tools" (AS, PI addresses)
b) eat other layers upwards and downwards
Then you'll get both purity and incremental deployment.
Just a counter-example.

On 16/03/2008, Robin Whittle <rw@firstpr.com.au> wrote:
>  I conclude that if your solution space is limited to architecturally
>  pure outcomes, then it almost certainly cannot include solutions
>  which are incrementally deployable.
>  If your solution space includes all solutions which are
>  incrementally deployable, then I think it must include architectures
>  which are not completely clean.
>  I am only really interested in incrementally deployable solutions.

-- 
Victor

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