nanog mailing list archives

Re: Bottlenecks and link upgrades


From: "m.Taichi" <marc101.maxmaok () gmail com>
Date: Wed, 12 Aug 2020 23:08:37 +0800

Just my curiosity. May I ask how we can measure the link capacity loading?
What does it mean by a 50%, 70%, or 90% capacity loading? Load sampled and
measured instantaneously, or averaging over a certain period of time
(granularity)?

These are questions have bothered me for long. Don't know if I can ask
about these by the way. I take care of the radio access network performance
at work. Found many things unknown in transport network.

Thanks and best regards,
Taichi


On Wed, Aug 12, 2020 at 3:54 PM Mark Tinka <mark.tinka () seacom com> wrote:



On 12/Aug/20 09:31, Hank Nussbacher wrote:

At what point do commercial ISPs upgrade links in their backbone as well
as peering and transit links that are congested?  At 80% capacity?  90%?
95%?


We start the process at 50% utilization, and work toward completing the
upgrade by 70% utilization.

The period between 50% - 70% is just internal paperwork.

Mark.


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