Re: [DMM] New Liaison Statement, "CP-173160: New Study Item on User Plane Protocol in 5GC"

[Arashmid Akhavain <[e-mail]>]

I agree with the current LS

Arashmid

From: dmm [mailto:[e-mail]] On Behalf Of Sri Gundavelli (sgundave)
Sent: Tuesday, July 17, 2018 3:49 PM
To: [e-mail]
Subject: Re: [DMM] New Liaison Statement, "CP-173160: New Study Item on User Plane Protocol in 5GC"

All:

Thank you for the discussion today in the DMM meeting on the Liaison response to 3GPP CT4 group.  There was one comment at the microphone that we should not reference individual I-D's (non working documents) in the response. But, as we discussed and per the below summary, we have explained the criteria for inclusion / exclusion of I-D's.  If you still object to it, please let us know. We are extending the deadline for comments till Friday, 20th of July.

Dapeng & Sri




Re: [DMM] New Liaison Statement, "CP-173160: New Study Item on User Plane Protocol in 5GC"

"Sri Gundavelli (sgundave)" <[e-mail]<mailto:[e-mail]>> Mon, 09 July 2018 17:35 UTCShow header<https://mailarchive.ietf.org/arch/browse/dmm/>

Ok!  Thank you Kalyani and Arashmid.





Change-1: Add to the last sentence.



"Also please provide any evaluation criteria that could help us in progressing our work to support 5G."



Change-2: Add to the second sentence, of second paragraph



+ " and building proof of concept demos."





Now, I need to pull this back for edits. Let me do that.  I hope this makes a difference in CT4 discussions.



All - Let us know if you have any issue with these additions, or to the original proposed text.





Sri

















On 7/9/18, 9:41 AM, "Bogineni, Kalyani" <[e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>> wrote:



Sri:



Here is one edit in the last sentence to allow IETF to take feedback from 3GPP:



"Please let us know if you need any additional information. Also please provide any evaluation criteria that

could help us in progressing our work to support 5G."



Kalyani



-----Original Message-----

From: dmm [mailto:[e-mail]] On Behalf Of Sri Gundavelli (sgundave)

Sent: Monday, July 9, 2018 11:51 AM

To: Arashmid Akhavain <[e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>>; [e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>

Subject: [E] Re: [DMM] New Liaison Statement, "CP-173160: New Study Item on User Plane Protocol in 5GC"



Hi Arashmid/Kalyani,



Thank you both for your feedback.



Yes, we thought its better to keep the focus on problem statement and requirement analysis. We don't want to prematurely high-light any solution documents to SDO. Which did not go through proper review process, as it will only result in confusing them.





Having said that however, I think a general statement about proof of

concepts can help the cause.



The current text provides an high-level update and status on where the WG is going, and a also a pointer to all documents under review. I am personally not keen on making additional edits, unless you guys think the change is absolutely needed and will make a difference in CT4 discussion.

So, if you are keen on seeing any such changes, please propose the exact text. But, if you have no objections to the current response, we can let this go. In future liaisons we can have detailed technical exchanges.





Sri







On 7/9/18, 7:23 AM, "Arashmid Akhavain" <[e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>>

wrote:



Hi Sri,



Thank you for your clarifying email. The POC draft talks about the SRv6

demos and I can see how it can be seen as a document advocating a

particular solution strategy.

So, I agree that we should stay away from specific POCs and drafts in

the LS. Having said that however, I think a general statement about

proof of concepts can help the cause.



At this point I think it is more important to discuss the GAPs in

existing system rather than focusing on different solutions. That's why

I really like what

draft-hmm-dmm-5g-uplane-analysis-00 is trying to do.



Cheers,

Arashmid



-----Original Message-----

From: Sri Gundavelli (sgundave) [mailto:[e-mail]]

Sent: 08 July 2018 19:29

To: Arashmid Akhavain <[e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>>; [e-mail]<mailto:[e-mail]<mailto:[e-mail]%3cmailto:[e-mail]>>

Subject: Re: New Liaison Statement, "CP-173160: New Study Item on

User Plane Protocol in 5GC"

Hi Arashmid,

We were trying to avoid this debate on inclusion/exclusions of

individual I-  D's, but looks like we are just doing that. That is

fine. Lets review the  situation.

The approach on what documents to be explicitly listed is based on

the following principles.

#1 Provide references to DMM WG documents that have any relation to

the  study item in 5GC.

#2 Include references to individual I-D's that have done broader

requirement/solution analysis/comparative study on the topic of mobile

user  plane optimization; documents that are not advocating a specific

solution.

We also wanted to apply the constraint of documents that have had

substantial discussions in the working group. In other words,

documents that  were reviewed by the WG and received significantly

high number of  comments.

For #1: we have included draft-ietf-dmm-srv6-mobile-uplane-02.txt, as

its a  WG document on track for standardization.

For #2: we have included draft-bogineni as there were many

discussions/presentations/conference calls on that draft. We have also

included draft-hmm-dmm-5g-uplane-analysis-00, but however this draft

was  published recently and had near zero discussions in the WG. But

given the  quality of the document and noting that its about

requirement analysis and  as its not advocating a specific solution,

we chose to keep this document in  the list.

We have not included any other I-D's which have not had enough

discussions  and which are solution specific documents. Not that we

have not established  the draft applicability to the 3GPP study item.

These include:

draft-auge-dmm-hicn-mobility-00,

draft-auge-dmm-hicn-mobility-deployment-options-00,

draft-camarillo-dmm-srv6-mobile-pocs-00,

draft-gundavelli-dmm-mfa-00

draft-homma-dmm-5gs-id-loc-coexistence-01,

Now, if this sounds unreasonable or unfair, we have two options.

#1 Remove references to all individual drafts and only include WG

documents

#2: Include every single I-D (WG and non WG) documents.

All - Please comment.

Sri