[irtf-discuss] Re: [Green] Re: [E-impact] Network Equipment Energy Efficiency Metric

[Toerless Eckert <[e-mail]>]

On Tue, Nov 12, 2024 at 02:32:29PM -0000, Michael Richardson wrote:
> 
> Is is useful for network planners to know kWh/peak-GB for an entire infrastructure?

I think so. That's why i was just suggesting to Dean to have not only
0%/15%/100% throughput utilization, but also a definition for max-power use
of a device. How much power is it, and what's needed so that the device will 
use that much power.

> This doesn't try to model reaction of network equipment to increased flows,
> but rather to model how infrastructure grows to accomodate higher peak loads?

Not sure about that use-case. Can you give an example ? I fear that all
expansion may involve new equipment with yet-unknown power parameters...

I was primarily thnking of provisioning powr for peak use. Or as necessary do
peak shaving. For example, if there atually is a significant peak after e.g.
a power failure, as there is in traditional servers with spinning disks, then
this can typically be shaved through software/control mechanisms. I am not aware
of anything like this for traditional network devices, but always good to
know upfront that there is no such situation where power use is higher than
power use during e.g.: 100% utilization, for which one does plan the power supply
of the room/

Cheers
   Toerless

> There is also an induced demand issue.  Networks grow when they fill,
> assuming there is revenue to support it.  This is akin to transportation:
>       https://www.vtpi.org/gentraf.pdf
> 
> --
> Michael Richardson <[e-mail]>, Sandelman Software Works
>  -= IPv6 IoT consulting =-                      *I*LIKE*TRAINS*
> 
> 
> 



> _______________________________________________
> Green mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]


-- 
---
[e-mail]