[DNA] Reality Check - Implementer Feedback

[Suresh Krishnan <suresh.krishnan@ericsson.com>]

Hi Folks,
   We have heard comments from OS vendors that the dna protocol, as it
exists, is too complex to implement. We already have one instance of an
OS vendor (Apple) who has shipped their own version of DNAv6 (it is
pretty much a version of DNAv4 adapted to IPv6). From talking to the
people who had the complexity concerns, the chairs have inferred that
the following issues with the current document are the main obstacles to
deployment

* Router changes are NECESSARY
* Handling of corner cases adds complexity to most likely use cases
* Some of the DNA Goals are not really necessary/useful

We have a couple of options going forward

a) Forward the current document to the IESG on the standardization path
with no hope of deployment
b) Simplify the current document
    - remove some of the DNA steps
    - spin off Tentative options to a separate document
    and then put it on the standardization path, and again risk lack of
    deploymen
c) Come up with a much simpler scheme which is probabilistic but works
    decently given a set of assumptions(however limited they may be).
    Then send it up on the standards track. This has the highest
    probability of deployment.
d) Do both b) and c)

We would like to hear the opinions of the WG on these options.

Cheers
Suresh & Greg