I am not checking my emails until Nov 14th, 2025. Thanks, Samaneh

On Nov 8, 2025, at 2:27 PM, nanog--- via NANOG <[email protected]> wrote:

I said what I meant to say. "less than 98% as much" is the same thing as 
"savings greater than 2%".

Perhaps those who call others "internet trolls" should reconsider whether their 
own behaviour is trolling. In the modern online environment, it is unwise to 
expose personal information needlessly. I could have used a realistic randomly 
chosen pseudonym, but I felt it would add no value. Technical content should be 
evaluated based on its merit, not based on the name attached to it. Though it's 
regrettable the new mailing list software also makes it hard to see the 
sender's address.



On 7 November 2025 18:53:38 CET, Gary Sparkes via NANOG <[email protected]> 
wrote:
On eyeball networks here, we're seeing about 60-70% native IPv6 traffic.

Definitely on the services (IE hosted/provided services, not network services) 
side, It's a mix, but around 50-60%.

Mind you, I deal primarily with US facing infrastructure (provider and eyeball) 
only.

In terms of NAT load, that's meant an actual reduction in hardware footprint, 
via things like edge CPU and RAM usage, etc.

Less power, less hardware, less expense - with better throughput overall per 
amount of hardware, to boot - without having to over-size hardware to 
compensate.

So while I think they meant to say uses more than 2% less, it definitely has 
been *far more* than 2% savings for us (my org, other orgs I'm involved with, 
etc), just via NAT reduction. Other simplification benefits for 
deployment/design have also netted savings.

The added benefit of a lot of things just working, and working more reliably, 
is a bonus, as well.



-----Original Message-----
From: A B via NANOG <[email protected]>
Sent: Friday, November 7, 2025 11:25 AM
To: nanog--- via NANOG <[email protected]>
Cc: A B <[email protected]>
Subject: Re: my finance department cares deeply about 2%

On Thu, 06 Nov 2025 18:58:10 +0100
nanog--- via NANOG <[email protected]> wrote:

fun fact I forgot to mention: if you use ipv6 on cellphone
connections, your site loads more than 2% faster and uses less than
98% as much electricity, due to avoiding the expensive and
computation-hungry NAT process itself, as well as not needing to be
physically routed to that big centralised server and back. So if you
care about 2%, you'll use IPv6.

NAT is definitely not "computation-hungry" anymore - In many modern stacks 
there's hardly any penalty for NAT vs not. And by modern I mean "almost 
anything written after the mid 1990s"

"uses less than 98% as much electricity" so it uses 97% as much as ipv4?  At 
1500 MTU?  Does that at all sound right to anyone?  "Hey we increased the 
header so you get reduced data payload, thus taking more packets to do the same 
work" doesnt really sound like an electrical savings to me.




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