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Arista Routing Solutions
- Subject: Arista Routing Solutions
- From: saku at ytti.fi (Saku Ytti)
- Date: Sun, 24 Apr 2016 08:02:57 -0700
- In-reply-to: <[email protected]>
- References: <CAAeewD9kTg5eQCi-Z8zOBmGL5ULr3XcfmMd-paROOi=joC8xbA@mail.gmail.com> <[email protected]>
On 24 April 2016 at 05:14, Keith Medcalf <kmedcalf at dessus.com> wrote:
> High Touch / Low Touch
High touch means very general purpose NPU, with off-chip memory. Low
touch means usually ASIC or otherwise simplified pipeline and on-chip
memory. Granted Jericho can support off-chip memory too.
L3 switches are canonical example of low touch. EZchip, Trio, Solar,
FP3 etc are examples of canonical high touch NPUs. What low touch can
do, it can do fast and economically.
But like few terms, it's not exact, and borders are hazy and even subjective.
--
++ytti