[AusNOG] Telstra mobile down "nationwide"
Nick Stallman
nick at agentpoint.com
Tue Feb 16 09:25:53 EST 2016
Don't forget Ethernet uses 8b10b encoding on top of the frame overhead..
https://en.wikipedia.org/wiki/8b/10b_encoding
LTE supports up to 64QAM (256QAM for LTE Advanced) for the actual radio
side of things
This (rather cool) page has all the nitty gritty details:
http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/lte-ofdm-ofdma-scfdma.php
http://www.radio-electronics.com/info/cellulartelecomms/lte-long-term-evolution/lte-frame-subframe-structure.php
On 16/02/16 09:10, Damien Gardner Jnr wrote:
> 8, N, 1. That's a start bit, 8 data bits, no parity, 1 stop bit.
> That's actually 10 bits per transmitted byte. :)
>
> Since it's sent over packet radio, I was figuring it was basically the
> same overheads. If you happen to have references on how the data on
> LTE is encapsulated, I'd love to read them :)
>
> If it was ethernet, the overheads are much narrower - 38 bytes for the
> Ethernet frame, and 40 bytes for the IP header. (Though the IP header
> isn't going to be taken into account by Layer 7 apps reporting their
> throughput), or only 5% of throughput, compared to 20% on serial.
>
> On 16 February 2016 at 08:58, Mark Smith <markzzzsmith at gmail.com
> <mailto:markzzzsmith at gmail.com>> wrote:
>
>
> On 16 Feb 2016 07:26, "Damien Gardner Jnr" <rendrag at rendrag.net
> <mailto:rendrag at rendrag.net>> wrote:
> >
> > 166gbps, and assuming you're using 8 bits per byte.
> >
> > When did we start using 8 bits per byte for calculating comms
> rates, rather than 10?
> >
>
> The more interesting question is when did you start using 10 bits
> per byte, and why did you think it was common or popular to use?
>
> The only way I can think of to get to 10 bits per byte is on an
> async serial link with combinations of non-zero numbers of parity
> and stop bits, and that wasn't common in my time dealing with
> dealing with serial. N, 8, 1 was or 9 bits in total.
>
> > I figured on 208gbps including signalling overhead
> >
> > On 15 February 2016 at 23:33, Damian Guppy <the.damo at gmail.com
> <mailto:the.damo at gmail.com>> wrote:
> >>
> >> My math says 1.8PB over 24 hours works out to an average of
> 160gbps?
> >>
> >> --Damian
> >>
> >> On Mon, 15 Feb 2016 at 6:34 PM, Joshua D'Alton
> <joshua at railgun.com.au <mailto:joshua at railgun.com.au>> wrote:
> >>>
> >>> I don't know, 1.8PB in even only 12 hours works out at ....
> .... 41.6666 Gbps or about the same as Vodafone. I'd say its the
> same order of magnitude, although the Telstra network on a whole
> during Sunday certainly would have pulled at least 400G if not Tbps.
> >>>
> >>> On Mon, Feb 15, 2016 at 9:12 PM, Damian Guppy
> <the.damo at gmail.com <mailto:the.damo at gmail.com>> wrote:
> >>>>
> >>>> Telstra reports the network did 1.8 PB of traffic on Sunday.
> Impressive. When vodafone did their free weekend for a similar
> stuff up I believe they reported only getting a peak of 40gbps,
> which would be almost an order of magnitude less than Telstra.
> >>>>
> >>>> http://exchange.telstra.com.au/2016/02/15/big-day-of-free-data/
> >>>>
> >>>> --Damian
> >>>>
> >>>> On Sat, Feb 13, 2016 at 3:54 PM, Quentin Rittman
> <quentinrittman at internode.on.net
> <mailto:quentinrittman at internode.on.net>> wrote:
> >>>>>
> >>>>> Boost are, Telechoice are, Aldi are,
> >>>>> Others, dunno.
> >>>>>
> >>>>> From: AusNOG <ausnog-bounces at lists.ausnog.net
> <mailto:ausnog-bounces at lists.ausnog.net>> on behalf of Narelle
> <narellec at gmail.com <mailto:narellec at gmail.com>>
> >>>>> Date: Saturday, 13 February 2016 at 6:31 PM
> >>>>> To: Michael Biber <mbiber at ipv6forum.com.au
> <mailto:mbiber at ipv6forum.com.au>>, Joshua D'Alton
> <joshua at railgun.com.au <mailto:joshua at railgun.com.au>>
> >>>>> Cc: "ausnog at ausnog.net <mailto:ausnog at ausnog.net>"
> <ausnog at lists.ausnog.net <mailto:ausnog at lists.ausnog.net>>
> >>>>> Subject: Re: [AusNOG] Telstra mobile down "nationwide"
> >>>>>
> >>>>>
> >>>>> I've only heard the names of some resellers.
> >>>>>
> >>>>> Best to check.
> >>>>>
> >>>>> YBSMV
> >>>>>
> >>>>> [Billing system]
> >>>>>
> >>>>>
> >>>>> Narelle
> >>>>>
> >>>>>
> >>>>> On Sat, 13 Feb 2016 16:26 Michael Biber
> <mbiber at ipv6forum.com.au <mailto:mbiber at ipv6forum.com.au>> wrote:
> >>>>>>
> >>>>>> Does this include Telstra resellers like Boost?
> >>>>>> They haven't said anything to me so I presume not.
> >>>>>> Mike
> >>>>>>
> >>>>>> On 12 Feb 2016 7:46 pm, "Joshua D'Alton"
> <joshua at railgun.com.au <mailto:joshua at railgun.com.au>> wrote:
> >>>>>>>
> >>>>>>> Apparently this Sunday is free data day,
> >>>>>>>
> >>>>>>> As a small gesture to say sorry, we’re giving you — as a
> Telstra mobile
> >>>>>>> customer — free mobile data within Australia this Sunday.
> >>>>>>>
> >>>>>>> Whether you’re on a personal or business, pre-paid or
> post-paid mobile, tablet or mobile broadband plan, you will
> automatically receive free data, from midnight to midnight in
> your local Australian time zone Sunday 14 February 2016.
> >>>>>>>
> >>>>>>> On Thu, Feb 11, 2016 at 4:20 PM, Narelle
> <narellec at gmail.com <mailto:narellec at gmail.com>> wrote:
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> Then there's this one:
> >>>>>>>>
> http://www.itnews.com.au/news/telecom-nz-hands-out-cdma-phones-after-3g-network-failure-165889
>
> >>>>>>>>
> >>>>>>>> and this one:
> >>>>>>>>
> https://wirelesse2e.wordpress.com/2011/05/02/another-outage-more-lessons-geo-redundancy-couldnt-prevent-verizon-lte-service-disruption/
> >>>>>>>>
> >>>>>>>> A lot of it has to do with the massive increase in
> signalling as each user terminal tries to re-register with the
> HLR/HSS (3G/4G respectively).
> >>>>>>>>
> >>>>>>>> That's why when you bring them back on you have to do it
> gradually... it is a highly reliable system generally and 4G is
> definitely more so than 3G.
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> Narelle
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> On Thu, Feb 11, 2016 at 1:00 PM, Roland Dobbins
> <rdobbins at arbor.net <mailto:rdobbins at arbor.net>> wrote:
> >>>>>>>>>
> >>>>>>>>> On 11 Feb 2016, at 6:55, TWIG Solutions wrote:
> >>>>>>>>>
> >>>>>>>>>> Same thing occurred there, if and RNG failed, if the
> switch-over to the standby failed for some reason, the resulting
> registration storm caused the network to fall-over for 18 hours.
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> <http://users.csc.calpoly.edu/~jdalbey/SWE/Papers/att_collapse.html <http://users.csc.calpoly.edu/%7Ejdalbey/SWE/Papers/att_collapse.html>>
> >>>>>>>>>
> >>>>>>>>> -----------------------------------
> >>>>>>>>> Roland Dobbins <rdobbins at arbor.net
> <mailto:rdobbins at arbor.net>>
> >>>>>>>>>
> >>>>>>>>> _______________________________________________
> >>>>>>>>> AusNOG mailing list
> >>>>>>>>> AusNOG at lists.ausnog.net <mailto:AusNOG at lists.ausnog.net>
> >>>>>>>>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> --
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> Narelle
> >>>>>>>> narellec at gmail.com <mailto:narellec at gmail.com>
> >>>>>>>>
> >>>>>>>> _______________________________________________
> >>>>>>>> AusNOG mailing list
> >>>>>>>> AusNOG at lists.ausnog.net <mailto:AusNOG at lists.ausnog.net>
> >>>>>>>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> _______________________________________________
> >>>>>>> AusNOG mailing list
> >>>>>>> AusNOG at lists.ausnog.net <mailto:AusNOG at lists.ausnog.net>
> >>>>>>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>>>>>
> >>>>> _______________________________________________ AusNOG
> mailing list AusNOG at lists.ausnog.net
> <mailto:AusNOG at lists.ausnog.net>
> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>>>
> >>>>> _______________________________________________
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> >>>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> AusNOG mailing list
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> >>>> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>>>
> >>>
> >>
> >> _______________________________________________
> >> AusNOG mailing list
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> >> http://lists.ausnog.net/mailman/listinfo/ausnog
> >>
> >
> >
> >
> > --
> >
> > Damien Gardner Jnr
> > VK2TDG. Dip EE. GradIEAust
> > rendrag at rendrag.net <mailto:rendrag at rendrag.net> -
> http://www.rendrag.net/
> > --
> > We rode on the winds of the rising storm,
> > We ran to the sounds of thunder.
> > We danced among the lightning bolts,
> > and tore the world asunder
> >
> >
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net <mailto:AusNOG at lists.ausnog.net>
> > http://lists.ausnog.net/mailman/listinfo/ausnog
> >
>
>
>
>
> --
>
> Damien Gardner Jnr
> VK2TDG. Dip EE. GradIEAust
> rendrag at rendrag.net <mailto:rendrag at rendrag.net> -
> http://www.rendrag.net/_
> _--
> We rode on the winds of the rising storm,
> We ran to the sounds of thunder.
> We danced among the lightning bolts,
> and tore the world asunder
>
>
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
--
Nick Stallman
Technical Director
Agentpoint Pty Ltd
The Real Estate Web Developers
Melbourne | Sydney | Miami
nick at agentpoint.com
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