[AusNOG] Solar flare

[Peter Childs]

One of my co-workers found our case notes.

<quote>
> As with all computer and networking devices, the AS5400 is susceptible to
> the rare occurrence of parity errors in processor memory.  Parity errors may
> cause the system to reset and can be a transient Single Event Upset (SEU or
> soft error) or can occur multiple times (often referred to as hard errors)
> due to damaged hardware. SEUs or soft errors are caused by "noise" most
> frequently due to high-energy neutrons generated in the atmosphere by cosmic
> rays. (occur when the energy level within the chip changes -- a one becomes
> a zero and vice-versa)
</quote>

--
 Peter Childs - Voice Engineer
 Internode/Agile
 Ph: 08 8228 2380 Mb: 0406 388 405 Fax: 08 8235 6801

On 08/03/2012, at 4:13 PM, Brent Paddon wrote:

> I've always found this interesting reading :
> 
> http://en.wikipedia.org/wiki/Solar_storm_of_1859 
> 
> Especially the effects observed.. would be interesting to see the effect on today's modern world.
> 
> Brent
> 
> On Thu, Mar 8, 2012 at 3:31 PM, Peter Childs <PChilds at internode.com.au> wrote:
> 
> Perhaps its time to put some aluminium foil over the top of your Cisco AS53/4xx devices.
> 
> I am sure the number one reason these things spontaneously rebooting is due to cosmic rays (so I have been informed on vendor support tickets...)
> 
> ;)
> 
> --
>  Peter Childs - Voice Engineer
>  Internode/Agile
>  Ph: 08 8228 2380 Mb: 0406 388 405 Fax: 08 8235 6801
> 
> On 08/03/2012, at 3:58 PM, Joseph Saxton wrote:
> 
>> Not much for us to worry but im sure the people out in space better hide
>>  
>> Little info on how solar flares impact earth
>> http://en.wikipedia.org/wiki/File:Structure_of_the_magnetosphere_mod.svg
>>  
>> Joseph Saxton | Help Desk Officer
>> 
>> Workforce International Pty Ltd
>> Level 1, 601 Botany Road | Rosebery | NSW 2015
>> T: 02 9310 6963 F: 02 9698 2975
>> E: Joe.Saxton at workforce.com.au W: www.workforce.com.au
>> 
>>  
>> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of adamn at eyemedia.com.au
>> Sent: Thursday, 8 March 2012 16:07
>> To: ausnog at ausnog.net
>> Subject: Re: [AusNOG] Solar flare
>>  
>> NOT FLAT!!!! What the hell? 
>> 
>> Regards,
>> Adam
>> 
>> c: eye media australia pty ltd
>> a: level 4, 1013 whitehorse rd, box hill, victoria, 3128, au, earth
>> p: +61 (0)3 8080 5850
>> f: +61 (0)3 8080 5840
>> m: +61 (0)439 646 941
>> w: http://www.eyemedia.com.au 
>> 
>> 
>> 
>> From:        "Daniel Brown" <daniel at archongnosis.com.au> 
>> To:        "'Joseph Saxton'" <Joe.Saxton at workforce.com.au>, "'ausnog at ausnog.net'" <ausnog at lists.ausnog.net> 
>> Date:        08/03/2012 04:03 PM 
>> Subject:        Re: [AusNOG] Solar flare 
>> Sent by:        ausnog-bounces at lists.ausnog.net
>> 
>> 
>> 
>> Well that's for that...........that part IS obvious!
>> 
>> What side? What continent? Granted there is a global effect, but what where
>> is it localised?
>> 
>> Long since have the days been flat where the entire face of the earth points
>> to the sun/is flat.
>> 
>> 
>> -DB
>> 
>> -----Original Message-----
>> From: Joseph Saxton [mailto:Joe.Saxton at workforce.com.au] 
>> Sent: Thursday, 8 March 2012 3:30 PM
>> To: Daniel Brown; ausnog at ausnog.net
>> Subject: RE: [AusNOG] Solar flare
>> 
>> EARTH
>> 
>> Joseph Saxton | Help Desk Officer
>> Workforce International Pty Ltd
>> Level 1, 601 Botany Road | Rosebery | NSW 2015
>> T: 02 9310 6963 | F: 02 9698 2975
>> E: Joe.Saxton at workforce.com.au
>> W: www.workforce.com.au
>> 
>> -----Original Message-----
>> From: ausnog-bounces at lists.ausnog.net
>> [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Daniel Brown
>> Sent: Thursday, 8 March 2012 15:59
>> To: 'ausnog at ausnog.net'
>> Subject: Re: [AusNOG] Solar flare
>> 
>> Hmm, I may be missing the obvious, but everything I read speaks of the
>> potential impact, but does not speak of WHERE the impact/collision??
>> will be?
>> 
>> -DB
>> 
>> 
>> -----Original Message-----
>> From: ausnog-bounces at lists.ausnog.net
>> [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Hallett, Ed
>> Sent: Thursday, 8 March 2012 2:23 PM
>> To: ausnog at ausnog.net
>> Subject: [AusNOG] Solar flare
>> 
>> Hi people,
>> First post, so I thought it'd be a good one.
>> Quite large solar flare about to hit the earth - can't get too much more
>> interesting than that :-)
>> http://www.forbes.com/sites/alexknapp/2012/03/07/nasa-reports-that-solar
>> -fla
>> re-could-disrupt-power-communications/
>> 
>> Well, the current topic WAS on optics, correct?   ;-)
>> 
>> 
>> Kind regards,
>> 
>> Ed Hallett
>> Support Analyst
>> 
>> System Sense, Suite 820, 1 Queens Rd, Melbourne
>> Phone: +61 2 8060 5550 | Mobile: +61 405 585 982
>> Email: ed.hallett at systemsense.com.au
>> web: www.systemsense.com.au
>> 
> 
> 
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