[AusNOG] Telstra mobile down "nationwide"

[Narelle]

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> 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>
>
> -----------------------------------
> Roland Dobbins <rdobbins at arbor.net>
>
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> AusNOG mailing list
> AusNOG at lists.ausnog.net
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>



-- 


Narelle
narellec at gmail.com
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