Undersea fiber cut after Taiwan earthquake - PCCW / Singtel / KT e tc connectivity disrupted

Marshall Eubanks tme at multicasttech.com
Sun Jan 21 13:01:18 UTC 2007

On Jan 21, 2007, at 12:05 AM, Brian Wallingford wrote:

> That's news?
> The same still happens with much land-based sonet, where "diverse  
> paths"
> still share the same entrance to a given facility.  Unless each end  
> can

Entrances, ha. Anyone remember that railroad tunnel in Baltimore ?
And I am pretty sure that Fairfax County isn't much better.


> negotiate cost sharing for diverse paths, or unless the owner of  
> the fiber
> can cost justify the same, chances are you're not going to see the  
> ideal.
> Money will always speak louder than idealism.
> Undersea paths complicate this even further.
> On Sun, 21 Jan 2007, Rod Beck wrote:
> :What's really interesing is the fragility of the existing telecom  
> infrastructure. These six cables were apparently very close to each  
> other in the water. In other words, despite all the preaching about  
> physical diversity, it was ignored in practice. Indeed, undersea  
> cables very often use the same conduits for terrestrial backhaul  
> since it is the most cost effective solution. However, that means  
> that diversifying across undersea cables does not buy the sort of  
> physical diversity that is anticipated.
> :
> :Roderick S. Beck
> :EMEA and North American Sales
> :Hibernia Atlantic

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