[c-nsp] PoP(s) failure and WWW redirect

[Bruce Pinsky]

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Mark Tohill wrote:
> Hi,
> 
>  
> 
> Has any implemented or have thoughts on the following?
> 
>  
> 
> If we loose our upstream provider (our only provider) connectivity or
> they have routing 'issues', we can redirect major customers to an
> off-site temporary holding page.
> 
>  
> 
> I was pointed towards the following on CCO recently.
> 
>  
> 
> http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_
> guide09186a00800b5d54.html
> 
>  
> 
> Is this an option and are there any others? BTW, DNS has been ruled out.
> 
>  
> 

Are these customer inside or outside your network?  If outside, how could
you conditional inject a route if you've lost connectivity to your
provider?  If inside, is this "holding page" reachable by your customers?

Unless this "holding page" server has the same IP address as the original
destination, how would a conditional route advertisement help?

If the IP address is the same, this might help but there may be other
tricks depending on your IGP.

- --
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bep

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