nanog mailing list archives

Re: Routed optical networks


From: Izaac <izaac () setec org>
Date: Tue, 2 May 2023 10:25:59 -0400

On Mon, May 01, 2023 at 02:56:47PM -0600, Matt Erculiani wrote:
In short, the idea is that optical networks are wasteful and routers do a
better job making more use of a network's capacity than ROADMs. Take the
extra router hop (or 3 or 8) versus short-cutting it with an optical
network because the silicon is so low-latency anyway that it hardly makes a
difference now. Putting more GBs per second on fewer strands means saving a
lot of money on infrastructure costs.

This is a very convoluted way of backing into the ole packet-switched
vs. circuit switched decision.

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