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They don't have to be related. <span id="🙂">🙂</span><br>
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I am curious about the distinction about the flow versus non-flow architecture for data centers and I am also fascinated by the separate issue of WAN architecture for these clouds.
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Regards, <br>
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Roderick. <br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Christopher Morrow <morrowc.lists@gmail.com><br>
<b>Sent:</b> Sunday, February 9, 2020 9:24 PM<br>
<b>To:</b> Rod Beck <rod.beck@unitedcablecompany.com><br>
<b>Cc:</b> Glen Kent <glen.kent@gmail.com>; nanog@nanog.org <nanog@nanog.org><br>
<b>Subject:</b> Re: Flow based architecture in data centers(more specifically Telco Clouds)</font>
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<div class="PlainText">(caution, I'm just a chemical engineer, but)<br>
<br>
You appear to ask one question: "What is the difference between flow<br>
and non-flow architectures?"<br>
then sideline in some discussion about fiber/waves vs<br>
layer-3/transit/peering/x-connect<br>
<br>
I don't think the second part really relates to the first part of your message.<br>
(I didn't put this content in-line because .. it's mostly trying to<br>
clarify what you are asking Rod"<br>
<br>
On Sun, Feb 9, 2020 at 3:19 AM Rod Beck <rod.beck@unitedcablecompany.com> wrote:<br>
><br>
> 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.<br>
><br>
> 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.<br>
><br>
> 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.<br>
><br>
> Best,<br>
><br>
> Roderick.<br>
><br>
> ________________________________<br>
> From: NANOG <nanog-bounces@nanog.org> on behalf of Glen Kent <glen.kent@gmail.com><br>
> Sent: Sunday, February 9, 2020 11:02 AM<br>
> To: nanog@nanog.org <nanog@nanog.org><br>
> Subject: Flow based architecture in data centers(more specifically Telco Clouds)<br>
><br>
> Hi,<br>
><br>
> 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.<br>
><br>
> Thanks, Glen<br>
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