Please explain for us dumb sales guys the distinction between flow and 
non-flow. My question is the fundamental architecture of these clouds. We all 
know that Amazon is buying dark fiber and building a network based on lighting 
100 and 10 gig waves on IRU and titled fiber. Same for Microsoft (I sold them 
in a past life some waves) and other large players.

But there appear to be quite a few cloud players that rely heavily on Layer 3 
purchased from Level3 (CenturyLink) and other members of the august Tier 1 
club. And many CDN players are really transit + real estate operations as was 
Akamai until recently.

It seems the threshold for moving from purchased transit plus peering to a 
Layer 1 and 2 network has risen over time. Many former Tier 2 ISPs pretty much 
gutted their private line networks as transit prices continued inexorable 
declines.

Best,

Roderick.

________________________________
From: NANOG <nanog-boun...@nanog.org> on behalf of Glen Kent 
<glen.k...@gmail.com>
Sent: Sunday, February 9, 2020 11:02 AM
To: nanog@nanog.org <nanog@nanog.org>
Subject: Flow based architecture in data centers(more specifically Telco Clouds)

Hi,

Are most of the Telco Cloud deployments envisioned to be modeled on a flow 
based or a non flow based architecture? I am presuming that for deeper insights 
into the traffic one would need a flow based architecture, but that can have 
scale issues (# of flows, flow setup rates, etc) and was hence checking.

Thanks, Glen

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