<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Oh dear.<br><br>[b]</div><div><br>On 12 Feb 2016, at 6:49 PM, Tom Berryman <<a href="mailto:Tom@connectivityit.com.au">Tom@connectivityit.com.au</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Challenge accepted…?<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>]
<b>On Behalf Of </b>Joshua D'Alton<br>
<b>Sent:</b> Friday, 12 February 2016 7:45 PM<br>
<b>To:</b> Narelle <<a href="mailto:narellec@gmail.com">narellec@gmail.com</a>><br>
<b>Cc:</b> <a href="mailto:ausnog@ausnog.net">ausnog@ausnog.net</a> <<a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a>><br>
<b>Subject:</b> Re: [AusNOG] Telstra mobile down "nationwide"<o:p></o:p></span></p>
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<p class="MsoNormal">Apparently this Sunday is free data day, <o:p></o:p></p>
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<p class="MsoNormal"><i>As a small gesture to say sorry, we’re giving you — as a Telstra mobile
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customer — free mobile data within Australia this Sunday. <br>
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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. </i>
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<p class="MsoNormal">On Thu, Feb 11, 2016 at 4:20 PM, Narelle <<a href="mailto:narellec@gmail.com" target="_blank">narellec@gmail.com</a>> wrote:<o:p></o:p></p>
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Then there's this one:<br>
<a href="http://www.itnews.com.au/news/telecom-nz-hands-out-cdma-phones-after-3g-network-failure-165889" target="_blank">http://www.itnews.com.au/news/telecom-nz-hands-out-cdma-phones-after-3g-network-failure-165889</a> <o:p></o:p></p>
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<p class="MsoNormal">and this one:<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://wirelesse2e.wordpress.com/2011/05/02/another-outage-more-lessons-geo-redundancy-couldnt-prevent-verizon-lte-service-disruption/" target="_blank">https://wirelesse2e.wordpress.com/2011/05/02/another-outage-more-lessons-geo-redundancy-couldnt-prevent-verizon-lte-service-disruption/</a><o:p></o:p></p>
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<p class="MsoNormal">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).<o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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<p class="MsoNormal">Narelle<o:p></o:p></p>
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<p class="MsoNormal">On Thu, Feb 11, 2016 at 1:00 PM, Roland Dobbins <<a href="mailto:rdobbins@arbor.net" target="_blank">rdobbins@arbor.net</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">On 11 Feb 2016, at 6:55, TWIG Solutions wrote:<o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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<<a href="http://users.csc.calpoly.edu/~jdalbey/SWE/Papers/att_collapse.html" target="_blank">http://users.csc.calpoly.edu/~jdalbey/SWE/Papers/att_collapse.html</a>><br>
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Roland Dobbins <<a href="mailto:rdobbins@arbor.net" target="_blank">rdobbins@arbor.net</a>><o:p></o:p></p>
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<p class="MsoNormal"><span class="hoenzb"><span style="color:#888888">-- <o:p></o:p></span></span></p>
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<br>
Narelle<br>
<a href="mailto:narellec@gmail.com" target="_blank">narellec@gmail.com</a></span><o:p></o:p></p>
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</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>AusNOG mailing list</span><br><span><a href="mailto:AusNOG@lists.ausnog.net">AusNOG@lists.ausnog.net</a></span><br><span><a href="http://lists.ausnog.net/mailman/listinfo/ausnog">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span><br></div></blockquote></body></html>