[OT] Optus: Why does cutting a cable bring down the entire network?

[Bevin Watson]

I really don't care so much about the redundancy.  I'm comfortable that
2 failures severed the link from Queensland to NSW.  I just don't
understand why that also severed links within Queensland.   It makes me
think we're not using an internet, it is just a series of pipes.


On Fri, 2008-07-18 at 10:34 +1000, Morgan Storey wrote:
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> We are pretty good, most of our connections aren't overly exposed
> (Some are underground all the way till they are out to sea) or are
> remote enough not to matter.
> There was mention of this in a podcast on secthis.com recently as to
> how vulnerable the USA's connections coming in are, there are about 14
> connections, and they are mostly secured by a simple chain-link fence.
> There locations are well known and easily accessable. Take these 14
> down and the USA is cut off from the rest of the world communication
> wise. This could be incredibly financially crippling for the US
> economy.
> 
> 
> 
> 
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> On Fri, Jul 18, 2008 at 9:47 AM, Null Ack <nullack at gmail.com> wrote:
>         Good insights there gents.
>         
>         This has me wondering how Australia's internet infrastructure
>         is
>         vulnerable to terrorist attack. Imagine the damage that could
>         be done.
>         
>         Unlike countries like the US, we obviously dont have the huge
>         conglomeration of backbone networks that would make a similar
>         attack
>         far more isolated.
>         
>         --
>         
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>         ubuntu-au at lists.ubuntu.com
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>         
> 
> 
> 
> -- 
> Regards
> Morgan Storey,A+, MCSE:Security.
> Senior Network and Security Consultant. 
> 
>