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Hello,

> On Jul 21, 2016, at 5:43 PM, philip.eardley@bt.com wrote:
> Yesterday Olivier presented about his & Benjamin’s recent work on MPTCP socket api. We didn’t have much discussion whether to add this to the charter. One comment was that any work should build on /reference RFC6897.
> https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf <https://www.ietf.org/proceedings/96/slides/slides-96-mptcp-4.pdf>
> Please can you comment whether you see this as a useful work item, or you think it shouldn’t be worked on, or how it should be adapted to something you think the WG should work on.

yes, I think it is a very useful work item and am willing to contribute to this work.

I'm not sure whether this can be seen as an update to 6897. I'm under the impression that 6897 takes a different approach, giving users a high-level overview of how using MPTCP might look like to an application that is talking to a TCP-socket (which happens to end up using MPTCP).

Olivier's work seems to rather make MPTCP entirely explicit to the application. So, I think both works take a different approach.

> To help prompt the discussion, here’s a very first version of some possible charter text
> RFC6897 defined an optional, basic application interface for MPTCP-aware applications, including a set of socket operations. Now there is more experience of how MPTCP is being used, the WG will re-visit this work, and consider adding more advanced socket operations.
>  
> RFC6897 was Informational – would this new Milestone be Informational or Experimental?

I think it should be Informational.

Christoph

>  
> Thanks
> phil
>  
> Philip Eardley
> Research and Innovation
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Re: [multipathtcp] potential new work item on MPTCP API