[NLNOG] [Survey] When do you upgrade your network?

Romain Jacob jacobr at ethz.ch
Fri Mar 27 11:41:24 CET 2026


Dear all,

[My apologies if you receive multiple copies of this message]

TL;DR
I lead an academic research project to better understand the motives 
behind network hardware upgrades. If you are operating a network 
infrastructure and have 10 minutes to spare, we would greatly appreciate 
you filling out this short (anonymous) survey: https://tally.so/r/rjEkZR

== Longer version ==

My name is Romain; I am a senior scientist at ETH Zürich, Switzerland, 
where I research the environmental impacts of Internet infrastructure 
and how we can steer networks to become more sustainable in the future.

There is increasing evidence that a large part of the Internet's impact 
comes from the manufacturing, deployment, and recycling of hardware, 
suggesting that networks could substantially reduce their footprint by 
keeping network devices in operation for longer, despite possibly higher 
energy consumption in older hardware models. Some of my ongoing research 
aims to assess whether this hypothesis is correct; happy to tell you 
more about that if you are interested.

Assuming it is indeed correct that network hardware should be kept in 
operation for longer, if we want to encourage this, we must understand 
why networks are being upgraded today.

  * What are the main motives behind network hardware upgrades nowadays?
  * What factors are preventing or discouraging longer hardware lifetime
    in networks?

We prepared a short survey to help answer those questions. After some 
brief contextualization questions to clarify the network type and 
context, the core of the survey presents a list of possible motives for 
hardware upgrades and asks, for each, how important it typically is in 
your own network upgrades. The second half of the survey contains 
(optional) questions related to the current environmental sustainability 
practices in your organization. If you are operating a network or 
working for an organization that operates a public or private network 
infrastructure, we would greatly appreciate you filling out this short 
(anonymous) survey: https://tally.so/r/rjEkZR

And, naturally, you are more than welcome to share this survey within 
your own network (of humans, I mean). Many thanks in advance!

—
Romain


-- 
Romain JACOB
Postdoctoral Researcher
ETH Zurich
Networked Systems Group (NSG)
Lead: Prof. Laurent Vanbever
www.romainjacob.net <https://www.romainjacob.net/>
@RJacobPartner <https://twitter.com/RJacobPartner>
@jacobr at discuss.systems <https://discuss.systems/@jacobr>
Gloriastrasse 35, ETZ G84
8092 Zurich
+41 7 68 16 88 22
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