Re: [DMM] Mobility Exposure and Selection WT call

[Alper Yegin <[e-mail]>]

Hello Alex,

> I looked at the slides.  I think I understand the concept of type of IP address from a mobility perspective: fixed, sustained, nomadic.
> 
> I have remarks:
> - could an aquired prefix (DHCPv6 PD) also be qualified as fixed,
>  sustained, nomadic?

Yes.

> - how would a mobility address type relate to other address 'types'?
>  - link-local, ULA, global.

Link-local can only be nomadic.
Global can be any type.
We cannot assure a ULA address stays the same (considering border crossings), hence it can only be nomadic.


>  - unicast, anycast, multicast.

This is source address selection, hence multicast address is out-of picture.
Unicast vs anycast distinction is orthogonal to mobility type of the address.

>  - MAC-based, random-based (RFC7217).

Orthogonal.

>  - configured by SLAAC, by DHCPv6, by PPP, or registered (RFC 6775).
> 

Orthogonal.


> E.g. a nomadic address could never be a link-local address.
> 
>> #2. Describe how IP address type information is conveyed from network to MN.
> 
> If one designs a protocol to convey address type information from the network to the end node, then one could also add the other types mentioned above.
> 
> SLAAC could never 'convey' the address type to the end-node, because SLAAC is an operation happening with as heavy weight from the Server (router) as from the Client (Host): the Router decides the prefix but the Client decides the Interface ID.
> 

Still, the network can convey the type of IP address to the host.
Also, one can imagine augmenting Router Solicitation to let the host convey its requested type.


> Address Registration Option of 6lo and BTLE would have the Host conveying this information to the Router (and not vice-versa).
> 

OK.

Alper


> Yours,
> 
> Alex
> 
>> WT agreed to use draft-yegin-dmm-ondemand-mobility as the baseline for
>> item#1 (the API).
>> A revision of the draft will also include a new section to cover
>> backward compatibility (Danny will provide the draft text).
>> Comments on the draft are welcome.
>> 
>> The next call will be about items #2/#3 (IP address configuration
>> enhancements associated with the API).
>> We intend to schedule that one in about 2 weeks.
>> 
>> Alper
>> 
>> 
>> 
>> 
>> 
>> 
>> On Feb 9, 2015, at 9:59 AM, Alper Yegin wrote:
>> 
>>> Folks,
>>> 
>>> See below for the Webex details.
>>> Remember, the call is on Tue, Feb 10, at 4pm CET.
>>> And don't forget to read the documents in the reading list prior to
>>> the call.
>>> 
>>>> Attendees _shall read _the following material before the call so that
>>>> we can directly jump to the discussions:
>>>> 
>>>> 1. http://www.ietf.org/proceedings/91/slides/slides-91-dmm-4.pdf
>>>> 2. http://www.ietf.org/proceedings/90/slides/slides-90-dmm-6.pdf
>>>> 3. https://datatracker.ietf.org/doc/draft-yegin-dmm-ondemand-mobility/
>>>> 4. http://www.ietf.org/proceedings/88/slides/slides-88-dmm-8.pdf
>>>> 5. http://tools.ietf.org/html/draft-liu-dmm-mobility-api-02
>>> 
>>> 
>>> 
>>> Alper
>>> 
>>> 
>>> 
>>> 
>>> 
>>> *DMM - Mobility Exposure and Selection WT*
>>> Tuesday 10 February 2015
>>> 16:00  |  Europe Time (Paris, GMT+01:00)  |  1 hr 30 min
>>> 
>>>> *Join WebEx meeting*
>>>> <https://ietf.webex.com/ietf/j.php?MTID=m1dad9871a277ff2ab142ae8ff4b77ad3>
>>>> 
>>>> Meeting number:	641 085 326
>>>> Meeting password:	dmm1911
>>>> 
>>>> *Join by phone*
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>>>> 
>>>> Add this meeting
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>>>> 
>>>> Can't join the meeting? Contact support. <https://ietf.webex.com/ietf/mc>
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>>> <WebEx_Meeting.ics>
>>> 
>>> 
>>> On Jan 27, 2015, at 11:12 AM, Alper Yegin wrote:
>>> 
>>>> Poll is closed, and majority selected the following date for the call:
>>>> 
>>>> Feb 10, 4pm CET.
>>>> 1,5hr call.
>>>> 
>>>> Please mark your calendars.
>>>> 
>>>> In this call, we'll aim making progress on the I-D for item#1 (an API
>>>> for source address selection).
>>>> 
>>>> Attendees _shall read _the following material before the call so that
>>>> we can directly jump to the discussions:
>>>> 
>>>> 1. http://www.ietf.org/proceedings/91/slides/slides-91-dmm-4.pdf
>>>> 2. http://www.ietf.org/proceedings/90/slides/slides-90-dmm-6.pdf
>>>> 3. https://datatracker.ietf.org/doc/draft-yegin-dmm-ondemand-mobility/
>>>> 4. http://www.ietf.org/proceedings/88/slides/slides-88-dmm-8.pdf
>>>> 5. http://tools.ietf.org/html/draft-liu-dmm-mobility-api-02
>>>> 
>>>> 
>>>> Alper
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Jan 23, 2015, at 3:28 PM, Alper Yegin wrote:
>>>> 
>>>>> Folks,
>>>>> 
>>>>> Please mark your availability on the following doodle for our next
>>>>> DMM WG Mobility Exposure and Selection WT call:
>>>>> 
>>>>> http://doodle.com/7xgcr8x6cgxnbzur
>>>>> 
>>>>> Register your availability no later than the end of Monday (Jan 26).
>>>>> 
>>>>> Alper
>>>>> 
>>>> 
>>> 
>> 
>> 
>> 
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