spare fibers

Sun Jun 16 19:04:06 UTC 2002

Hi Daniel and all,
Yes, multiple fiber in multiple conduits, traveling multiple paths is the 
best way to insure something's going to have connectivity.
Ring topology is what I've seen mostly for best protection, if something 
goes down, restoration takes milliseconds and is automatic. Worst case, is 
some contractor digs up the place where your fiber enters your building and 
severs everything....not much you can do about that kind of outage.

At 20:41 6/16/02 +0200, you wrote:

>Hi blitz,
>
>I think that you talk about multiple outage in the Telefonica
>Network in Spain cause by sabotage. (48 fibers in 4 points  at the same
>time)
>
>I see ok the interest of the ministry, is necessary to assure that outages
>don't affect to the national infraestruture.
>
>In our case we build our network over diverse companys with diverse path
>in their fiber network. I see ok, that all companys that operate basic
>services do it and they will have backup and emergency plans.
>
>Regards,
>Daniel
>Intelideas
>
>
>On Sun, 16 Jun 2002, blitz wrote:
>
> >
> > The Spanish ministry of science and technology has asked
> >     telecommunications companies to activate a backup plan in the
> >     case of such emergencies in future.
> >
> > Spare fibers in the same duct ;-?
> >
> > Doesn't sound like it would be much protection from "backhoe fade"...heh
> >