Traffic ratio of an ISP

Thu Jun 20 16:16:03 UTC 2019

Having an inbound:outbound ration of 10:1 is known as a leech ...

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The fact that there's a Highway to Hell but only a Stairway to Heaven says a lot about anticipated traffic volume.

>-----Original Message-----
>From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of Prasun Dey
>Sent: Wednesday, 19 June, 2019 14:58
>To: Aaron Gould
>Cc: nanog at nanog.org
>Subject: Re: Traffic ratio of an ISP
>
>Thank you Aaron,
>This is great. This gives an interesting insight regarding CDN as
>they seem to play a big role here. However, in general, what do you
>call your ISP as? A 'Heavy Inbound' or 'Mostly Inbound'? Is there any
>community standard about this ratio (having 1:10 or higher) to be
>treated as Heavy Inbound? Or this is just a rough estimation?
>
>Thank you.
>-
>Prasun
>
>Regards,
>Prasun Kanti Dey
>Ph.D. Candidate,
>Dept of Electrical and Computer Engineering,
>University of Central Florida
>web: https://prasunkantidey.github.io/portfolio/
>
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>	On Jun 19, 2019, at 2:18 PM, Aaron Gould <aaron1 at gvtc.com>
>wrote:
>
>	I run an eyeballs/isp network for about ~50,000 subscribers, and
>I see about 1:10 ratio at peak time.  Last night ~4.5 gbps out, ~45
>gbps in.  But, I do have local caching of 4 big name cdn cache
>providers, so that might alter the 1:10 ratio I see on my actual inet
>links (which do not include the local cdn traffic)
>
>	…take Netflix for instance… I see on my local nfx cdn links,
>1:100 ratio of in:out.  20 gbps inbound and .2 gbps outbound  (during
>that same timeframe as aforementioned actual inet links)
>
>	Numbers based on 21:00 CDT last night.
>
>
>	-Aaron
>