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RE: I-D ACTION:draft-baker-v6ops-end2end-00.txt
Hello,
While I have to agree that the intention of pin-pointing failures in
IPv4/IPv6 transition from an e2e perspective, this document falls short
in doing so...
What is currently missing in terms of e2e transition analysis is a doc
which not only points out problems but also provides some guidelines in
what concerns e2e transition, namely:
- current mechanisms and onto which e2e scenarios they apply best;
- approach multihoming scenarios
- approach multicast and current support for it in the transition (done
in section 2.4 but in a very light way)
- bi-directional transition (which is still weak even though some
support is provided, e.g., by NAT64-46 or 6to4)
- interworking between the different solutions, given that it is highly
unlikely that a single transition mechanism is pursued by different
operators, as we are currently seeing.
Regards,
Rute Sofia
> -----Original Message-----
> From: owner-v6ops@ops.ietf.org
> [mailto:owner-v6ops@ops.ietf.org] On Behalf Of Elwyn Davies
> Sent: Thursday, August 25, 2005 6:14 PM
> To: Fred Baker
> Cc: 'v6ops@ops.ietf.org '
> Subject: Re: I-D ACTION:draft-baker-v6ops-end2end-00.txt
>
> Hi.
>
> The intention of this draft is excellent - using a single scheme for
> connecting across IPv4 clouds is clearly essential to achieve e2e
> interoperability in the world encapsulated in the diagrams. The
> question that comes to my mind is just how much does this represent a
> time that has already gone by?
>
> The scenarios do not include situations where the IPv4 cloud is a
> convenient substrate to build a tunnel between an IPv6
> enabled stub and
> 'the' IPv6 transit backbone (which will be used until such time as
> native IPv6 connectivity arrives at the stub's attachment point(s)).
>
> There are already global IPv6 transit providers, and sitting here in
> front of my home system, my ISP provides me with an IPv6 prefix and
> capability to use an IPv6-in-IPv4 tunnel to an endpoint in
> their network
> which then connects me onto the IPv6 backbone.
>
> Hence before expending a lot of effort on determining (and
> 'marketing')
> whatever might be the 'best' solution in the pure IPv4 core case I
> believe we should get some idea of the relative importance of
> the pure
> IPv4 core case as compared with IPv4 providing a tunnel substrate for
> connecting to the IPv6 transit backbone.
>
> Be that as it may, I suspect I may be lucky in having an
> 'enlightened'
> ISP and it might be necesssary for less lucky users to connect to a
> gateway onto the IPv6 backbone in some other domain than their own
> ISP's. In this case the thoughts in the draft probably apply to the
> connection between the "own ISP's" domain and the domain with
> the IPv6
> backbone gateway.
>
> Regards,
> Elwyn
>
>
>
>