2012/4/3 Jan Zorz @ go6.si <[email protected]>

> On 4/3/12 3:53 AM, Satoru Matsushima wrote:
>
>> FYI, choosing MAP doesn't mean that committing to a 'single'. But
>> choosing 4rd-u means that committing to a 'single'.
>>
>> There're just transport variants, which are encapsulation,
>> translation and new one we've never seen before. Proponents of the
>> new one claim to unify transport only to the new one, which means
>> that eliminating both encapsulation and translation variants of MAP
>> because they say two choice of transport type would make confusion
>> for operators. The new one is transparent than translation, but less
>> than encapsulation. I couldn't decide transport type to be unified
>> with the new one. No evidence, no expertise, no experience for that.
>> Do we need them to be sure in spite of we already have existing
>> mature transport variants?
>>
>> cheers, --satoru
>>
>
> +1
>
> Given the situation with IPv4 exhaustion we have to hurry and go with what
> we know and what is proven to work today with no funky new features.
>
> I agree that 4RD-U brings some good new features, but as it changes the
> IPv6 current usage I suggest to redirect 4RD-U to BoF and to go through
> revision of also other working groups that needs to say their understanding
> of changed IPv6 transport behavior. I also believe that when 4RD-U goes
> through the whole proper procedure it might be widely adopted later as MAP
> replacement.
>
> Meantime - let's fix the problem with what we know and understand.
>

agree and have the same feeling. i'd love to keep study what 4rd-u brings
to the transition architecture and more practices are not excluded along
with the 4rd-u getting well-understood. and if 4rd-u is
approved/improved/verified superior to both -T and -E through the whole
procedure, i don't think it will be a problem that MAP would be obsoleted
in the future. but that's of not our current situation, fixing the problem
with well-understood building blocks is what we must do as soon as
possible.

- maoke


>
> Speaking as A+P (RFC6346) co-author, we got many questions about A+P
> progress from operators and we learned that the time-frame for decision
> between CGN and something else is already nearly expired. If we want
> anything-A+P to still reach the operators, then the time for decision is
> now. We already missed the majority of that train, but last seats in last
> wagon are still reachable.
>
> We need to act and not just to push the endless discussion (that is not
> that uncommon for any IETF WG :) ).
>
> Cheers, Jan Zorz
>
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