Got it, thanks for the explanation!
-----Original Message----- From: Saku Ytti [mailto:saku@ytti.fi] Sent: Sunday, 24 April, 2016 11:03 To: Keith Medcalf Cc: nanog list Subject: Re: Arista Routing Solutions
On 24 April 2016 at 05:14, Keith Medcalf <kmedcalf@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