If we can find a way to collapse H and T such that we are back to one 
"encap/decap" and one "entrans/detrans" version, I think this would be 
significant progress.  3 options here just seems ridiculous though. 

- Mark

On Jun 25, 2012, at 8:24, Tetsuya Murakami <[email protected]> 
wrote:

> +1.
> 
> Making another new document might cause more confusion. But if 4rd work is 
> stopped and merged to MAP, it might be good. But from the implementation 
> point of view, I would like to eliminate the complicated code as much as 
> possible such as
> 
> if (MAP-E)
> ...
> else if (MAP-T)
> ...
> else if (MAP-H)
> ...
> 
> But this is the implementation/deployment choice. So, from the standard 
> perspective, it might be good to merge H solution to MAP which has already 
> merged both E and T.
> 
> Thanks,
> Tetsuya Murakami
> 
> On 2012/06/23, at 1:52, Satoru Matsushima wrote:
> 
>> Dear Remi,
>> 
>> Thank you for a kind offer. It would be a very positive compromise for us.
>> 
>> However, in the context of making another new stream document, which MAP-bis 
>> as you said, I decline it. Nevertheless, if you abandon 4rd work, I'm very 
>> welcome you as an author of MAP.
>> 
>> Best regards,
>> --satoru
>> 
>> On 2012/06/23, at 1:52, Rémi Després wrote:
>> 
>>> Yong, Suresh, Ralph,
>>> 
>>> For mesh stateless v4/v6, we have so far a choice between only two 
>>> solutions, MAP as is and 4rd.
>>> On can hope that the consensus that couldn't be reached in Paris will be 
>>> achievable in Vancouver, but this isn't sure, each "camp" keeping its own 
>>> expectation.
>>> 
>>> Looking at recent history, we can remember that, not long ago, the chair's 
>>> approach was to have 3 specifications completed (MAP-T, MAP-E, and MAP-H, 
>>> as Alain called it with H for Hybrid), and then to choose only one for 
>>> standardization.
>>> 
>>> After that, promoters of either -T and -E decided to merge -T and -E in a 
>>> non-separable specification, as reflected in draft-ietf-softwire-map-00. 
>>> Thus, the choice has become between a "two-variants" specification (MAP) 
>>> and a "single-variant" specification (4rd).
>>> 
>>> In this context, a larger choice might well be the best chance for a WG 
>>> consensus. It would include a MAP specification in which the forwarding 
>>> mode of 4rd would be added as 3rd, say a "MAP-bis" . 
>>> With this MAP-bis:
>>> - vendors have to support 3 forwarding modes, which isn't ideal, but most 
>>> of the design, in particular in what concerns mapping rules, remains common 
>>> (Alain once said, possibly with optimism, the three were 99% identical!) 
>>> - operators have a free choice between T, E, or H, based on their 
>>> operational preferences.
>>> - we have (at last) a stabilized design with no one badly frustrated.
>>> 
>>> If this approach makes sense for the WG, I can do the work of editing a 
>>> MAP-bis proposal (taking the current MAP specification, adding a section 
>>> that describes the hybrid forwarding mode, and adding a third variant in 
>>> the address-format section). 
>>> 
>>> My personal preference remains for 4rd as single standard, but a choice 
>>> between MAP-as-is, MAP-bis, and 4rd, is IMHO a sounder choice for the WG 
>>> than just between MAP-as-is and 4rd.
>>> 
>>> Hoping that this will be found constructive,
>>> Best regards,
>>> RD
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Softwires mailing list
>>> [email protected]
>>> https://www.ietf.org/mailman/listinfo/softwires
>> 
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