LinuxSA Mailing list archives

  From: Simon Hackett <simon@internode.com.au>
  To  : Linux SA <linuxsa@linuxsa.org.au>
  Date: Mon, 30 Jul 2001 09:46:52 +0930

Re: Southern Cross.

At 10:07 AM +1000 30/7/01, Grant wrote:
>
>Changing all routes that usually went on the SCC to an alternate route is
>definately going to plug the alternate route. Yes your connection will
>still be fine, but it definately won't be as fast and reliable as before.
>
>Then what happens when that pipe gets cut?
>

You're ignoring a number of factors here including:

1) Dynamic routing protocols (who said the route changing had to be manual?)

2) Other routes are indeed sufficient to carry pretty much all of the 
demand, *if* your ISP has made investments in sufficient path diverse 
upstream links.

3) Repair time for SCCN should be short, they just have to plug their 
path diverse backup link back in again (rumour has it that they were 
fiddling with it when the main link failed - oops).

4) Anyone who wants to utterly avoid the potential of any 
inter-country link raining on their parade should put servers in 
multiple countries, or use a service offering that does this for them 
(for example, Cisco Content Router 4400's if you want to do it 
yourself, or Akamai if you want someone else to do it for you).

Simon

-- 

---
Simon Hackett, Technical Director, Internode Systems Pty Ltd
31 York St [PO Box 284, Rundle Mall], Adelaide, SA 5000 Australia
Email: simon@internode.com.au  Web: http://www.internode.on.net
Phone: +61-8-8223-2999          Fax: +61-8-8223-1777

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