Thanks Bruce for the nice overview and +1 for the last remark. A search for battery drain and IPv6 gives you tons of hits. I tested the RA myth one year ago by two SSIDs with different RAs (1 SSID with 500 RA/h and the other 30/h). Outcome: hardly any effect. (inspite of the RFC on this topic where Cisco and Google blame IPv6: https://www.rfc-editor.org/rfc/rfc7772.txt)
My experience is that mainly Samsung devices (upto but not including the S7) suffer from battery drain with IPv6. I saw no significant effects on iPhones, HTC devices and windows phones. I found an article that confirm this, blaming Samsung for choosing their own firmware and doing a bad job (sorry, cannot find the article any more). See also: https://issuetracker.google.com/issues/36949115 -Frans On 06/10/2017, 18:34, "The EDUCAUSE Wireless Issues Constituent Group Listserv on behalf of Curtis, Bruce" <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU on behalf of bruce.cur...@ndsu.edu> wrote: > >This is an issue with the configuration on that particular WiFi network and >not an architectural issue with IPv6. > >http://www.ibtimes.co.uk/why-your-smartphone-battery-being-drained-google-cisco-blame-ipv6-network-misconfiguration-1544393 > > >IPv4 with NAT does have some architectural issues. > >https://www.computerworld.com/article/2494064/internet/ipv6-can-boost-mobile-performance--battery-life--proponents-say.html > > > Measurements on properly configured networks show little difference in > power. But these measurements were during active use. > >https://tools.ietf.org/html/draft-petrescu-v6ops-ipv6-power-ipv4-00 > > >Cloudfare’s view: > >"That means that a v6-only mobile phone (looking at you, T-Mobile users) can >establish a clean path to any site or mobile app behind Cloudflare instead of >doing an expensive 464XLAT protocol translation as part of the connection >(shaving milliseconds and conserving very precious battery life)." > >https://blog.cloudflare.com/always-on-ipv6/ > > > >https://blog.wirelessmoves.com/2008/03/why-ipv6-will-b.html > >Check out the slide titled “IPv6 brings savings in battery life” about 8 >minutes into the video. > >https://www.youtube.com/watch?v=o5RbyK0m5OY > > >Another RFC for network administrators. > >https://tools.ietf.org/html/rfc7772 > > >So if you find that a specific WiFi network accelerates battery drain send >some of the info mentioned in this thread to your local WiFi network >administrators but don’t tell the world to turn off IPv6. > > >> On Oct 6, 2017, at 7:32 AM, Mike King <m...@mpking.com> wrote: >> >> So I saw this on Reddit this morning. What do you guys think of this? >> >> >> https://www.reddit.com/r/LifeProTips/comments/74jt7s/lpt_if_youre_in_student_halls_campus_or_hotel/ >> ********** Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/discuss. >> > >--- >Bruce Curtis bruce.cur...@ndsu.edu >Certified NetAnalyst II 701-231-8527 >North Dakota State University > > >********** >Participation and subscription information for this EDUCAUSE Constituent Group >discussion list can be found at http://www.educause.edu/discuss. > ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/discuss.
