Re: [RAM] Re: the separation of ID/RLOC

[Christian Vogt <christian.vogt at nomadiclab.com>]

Iljitsch:

> 1. It's doubtful that detecting, let alone restoring, a failure within
> an RTT is doable. If it is, the costs of doing so will be significant.

You are raising an interesting point.  The process of detecting failure
of a provider may indeed be a bottleneck today.  But I would argue that
this, too, could be improved in the future.  It would therefore be wise
no to limit the efficiency of a routing and addressing solution to the
performance of state-of-the-art failure detection mechanisms.

One possible improvement would call for an edge network operator to
redirect part of its traffic to an alternative provider as the delays
incurred by the current primary provider increase.

> 2. When you lose part of your connectivity, a substantial reduction in
> the traffic offered to the network is exactly the appropriate response.

If you have an alternative provider to switch to, then it would be good
if the mapping function would allow you to do this quickly enough to not
impact ongoing communications too much.

Of course, if you don't have an alternative provider, then a reduction
in traffic would be appropriate -- and TCP would do exactly that.

- Christian

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