[j-nsp] 400G is coming?

Saku Ytti saku at ytti.fi
Mon Mar 18 17:24:03 EDT 2019

On Mon, Mar 18, 2019 at 10:48 PM Thomas Bellman <bellman at nsc.liu.se> wrote:

> Gah, I hate that wording.  To me it sounds like "sunk cost fallacy"
> and "throwing good money after bad"...  (I'm not necessarily saying
> that applies to these cards.  It's just that I have heard the words
> "protect your investment" too many times when it would be much
> cheaper and better to throw out and replace the old stuff entirely.
> Seeing that in advertisments thus trigger my bullsh*t klaxons.)

Cheaper is subjective. To a small and dynamic shop CAPEX may represent
majority of cost. To an incumbent CAPEX may be entirely irrelevant,
money is cheap, but approving hardware to network may be massive
multiyear project. This is why platforms like GSR had so long tail.


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