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.