Re: ISP failures and site multihoming [Re: Enforcingunreachability of site local addresses]

[marcelo bagnulo <marcelo@it.uc3m.es>]

I haven't included ipng since i guess this is out of scope for them.

Hi Iljitsch,  

> Has the end-to-end principle failed to teach us anything? Reliability
> begins and ends in the end hosts. If each host is connected over two
> service providers there are four possible paths the hosts can switch
> between on a per-packet basis. Then the only problem becomes detecting
> failure. The end hosts are in an excellent position to do this without
> having to generate keepalive messages; 

How?

Thanks, marcelo

> a well designed protocol could
> switch to an alternate path within a few round trip times when a path
> failure occurs.
> 
> Multi6 has been gravitating towards multi-address multihoming solutions
> for a while now, but unfortunately it seems impossible to move foward.
-- 
marcelo bagnulo <marcelo@it.uc3m.es>
uc3m