Subject: Re: [v6ops] IPv6-only wifi during IETF meetings? - expect higher energy consumption

From: "Heatley, Nick" <[email-masked]>
Date: Thu, 17 Nov 2016 09:57:51 +0000

How about,
Battery usage (while active) proportional to time for the active transfer.
For tcp then RTT also plays a part (i.e. if the v6 content cache is the otherside of the world then transfer takes longer and battery will be impacted)

In real world tests usong tcp(http) if the coarse tcp parameters are not similar (rtt, mss which is impacted by packet header size as you say) then its not exactly a fair fight, and that can be a problem using internet networks.
Best to do it in a lab.
Would welcome a whitepaper on this of course. Nick

Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Jen Linkova <[email-masked]>
Date: 17/11/2016 07:15 (GMT+00:00)
To: Alexandre Petrescu <[email-masked]>
Cc: [email-masked]
Subject: Re: [v6ops] IPv6-only wifi during IETF meetings? - expect higher energy consumption

Well, if we assume that
1) battery usage is linearly proportional to  bytes transmitted
2) average packet size is ~500 bytes
(disclaimer: both statements might be found questionable),
then, as for each packet v6 would add 20 more bytes (20 bytes v4
header vs 40 bytes v6 header), those 20 bytes would give
those 5% of 500 bytes...(credits for such calculations go to a
colleague of mine who is not on this list ;)

--
SY, Jen Linkova aka Furry

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