RE: [Apn] A new draft on APN for your review, thank you!

["Pengshuping (Peng Shuping)" <[e-mail]>]

Dear Linda, 

Your suggestions are very good. I have updated the draft and uploaded it to the APN Github. Please feel free to make any further changes. Thank you!

https://github.com/APN-Community/APN-Scope-Gap-Analysis

Please find some more comments in line below. 

> -----Original Message-----
> From: Linda Dunbar [mailto:[e-mail]]
> Sent: Tuesday, January 26, 2021 2:29 AM
> To: Pengshuping (Peng Shuping) <[e-mail]>; tom petch
> <[e-mail]>; draft-per-app-networking-considerations
> <[e-mail]>
> Cc: [e-mail]; [e-mail]; [e-mail]
> Subject: RE: [Apn] A new draft on APN for your review, thank you!
> 
> Shuping,
> 
> Some comments to the draft-peng-apn-scope-gap-analysis-00:
> 
> I find Page 4 last sentence really hit the key purpose of APN: at the headend
> to steer into corresponding path, at the midpoint to collect corresponding
> performance measurement data, and at the service function to execute
> particular policies.
> But all the labels and IDs described in Section 6 are for homogeneous
> network, APN ID is supposed to achieve the above purposes through
> different nodes.
> 
> Is my understanding correct?  If yes, I recommend to write those key points
> in the Abstract and Introduction to make it more clear to people.
> 

Yes, it is correct. Your suggestions are great. I have explicitly put these information in the Abstract and Introduction. Please make further changes wherever needed. Thank you!


> The document stated in several places that APN Identifier is a Structured
> value. What structure is the APN ID?  Can the APN ID be mapped into  the
> labels described in Section 6? i.e. the SFC Service ID, Binding SID, FlowSpec
> Label, etc?

The APN ID structure design proposal and its encapsulation in IPv6 data plane are introduced in https://tools.ietf.org/html/draft-li-6man-app-aware-ipv6-network-02. More description is added in the updated version of the draft. The APN ID can be used to serve the functional purpose of all these labels.

> 
> Some minor comments:
> Section 6.1:  IPv6 flow label is manipulated by application themselves.
> Network can not make changes to them, nor can network know the meaning
> of the flow labels inserted by the Applications (unless the Application
> controller has signals to the network controllers)
> 

Yes, it is right. Just as far as I know, when the packets go into a tunnel, e.g. SRv6, generally the IPv6 flow label will be recalculated and encapsulated.

Best regards, 
Shuping

> 
> Linda
> 
> -----Original Message-----
> From: Apn <[e-mail]> On Behalf Of Pengshuping (Peng
> Shuping)
> Sent: Sunday, January 24, 2021 1:50 AM
> To: tom petch <[e-mail]>;
> draft-per-app-networking-considerations
> <[e-mail]>
> Cc: [e-mail]; [e-mail]; [e-mail]
> Subject: Re: [Apn] A new draft on APN for your review, thank you!
> 
> Dear Tom,
> 
> Thank you for your interest!
> 
> First of all, APN stands for Application-aware Networking
> 
> I had attached a APN BoF proposal document in my last email but probably it
> was too big to be delivered successfully. The APN6 was also introduced in
> this draft in the intarea WG
> (https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftoo
> ls.ietf.org%2Fhtml%2Fdraft-per-app-networking-considerations&amp;data=
> 04%7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d
> 8c03cbfa5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C6374707
> 14463026426%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJ
> QIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=APY
> vMROCre177UK3puGuTPHB%2FfoyGTWWXFedDS6ZNHw%3D&amp;reserve
> d=0). Sorry for any confusions caused.
> 
> Please find the APN BoF proposal in the IETF wiki for more information.
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftrac.
> tools.ietf.org%2Fbof%2Ftrac%2Fwiki%2FWikiStart&amp;data=04%7C01%7Cl
> inda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7
> C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637470714463026426
> %7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiL
> CJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=MqJnzeO5AJDOaZ
> rouSSgE%2B0qpNOOcnuQ7f7Fw8rUnK0%3D&amp;reserved=0
> 
> The archived discussions in this APN mailing list can be found here.
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail
> archive.ietf.org%2Farch%2Fbrowse%2Fapn%2F&amp;data=04%7C01%7Clin
> da.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7C0
> fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637470714463026426%
> 7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLC
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> 3R79BB9ub%2BWe94PU9W6HetLSa%2BnbhKLk%3D&amp;reserved=0
> 
> To subscribe the APN Mailing list,
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> w.ietf.org%2Fmailman%2Flistinfo%2Fapn&amp;data=04%7C01%7Clinda.dun
> bar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7C0fee8ff
> 2a3b240189c753a1d5591fedc%7C1%7C0%7C637470714463026426%7CUnk
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> XTCWEOiTkQksuHuZ6RljgE%3D&amp;reserved=0
> 
> Here are some relevant drafts and materials for your reference.
> 
> *	Scope & Gap analysis
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-peng-apn-scope-gap-analysis&amp;data=04%7C
> 01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03c
> bfa5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637470714463
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> eeocdWA%2FGV3xQyVnwpjwzcgMg113ZyvlbjZ4%3D&amp;reserved=0
> *	Problem statement & Use cases
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-li-apn-problem-statement-usecases&amp;data=0
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> aEgDM66QDuuj7WpVcbbQCUPpboODOG7YWAUIAqI%3D&amp;reserved=0
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-liu-apn-edge-usecase&amp;data=04%7C01%7Cli
> nda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7C
> 0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637470714463036422
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> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-zhang-apn-acceleration-usecase&amp;data=04%
> 7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c0
> 3cbfa5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C6374707144
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> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-yang-apn-sd-wan-usecase&amp;data=04%7C01
> %7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa
> 5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63747071446303
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> GHeFSYU35iGzWchFa62d9dDYoKjNMAz1VE%3D&amp;reserved=0
> *	Framework
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdata
> tracker.ietf.org%2Fdoc%2Fdraft-li-apn-framework%2F&amp;data=04%7C01
> %7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa
> 5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63747071446303
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> a0%2BQOv8DT026VMXG08rqLKpLSxCH1KROBo%3D&amp;reserved=0
> *	Security & Privacy
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdata
> tracker.ietf.org%2Fdoc%2Fdraft-peng-apn-security-privacy-consideration&a
> mp;data=04%7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42f
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> sdata=ykF6YreMnI7IzBn%2F1kxyRd9bvJybLd9DQj5GYcd5sl8%3D&amp;reserv
> ed=0
> *	APN Community
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith
> ub.com%2FAPN-Community&amp;data=04%7C01%7Clinda.dunbar%40futur
> ewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7C0fee8ff2a3b240189
> c753a1d5591fedc%7C1%7C0%7C637470714463036422%7CUnknown%7CT
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> 08GYYL8ZkM9rA%2Bto%3D&amp;reserved=0
> *	Per-Application Networking Considerations
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftool
> s.ietf.org%2Fhtml%2Fdraft-per-app-networking-considerations&amp;data=0
> 4%7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe274b08d8
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> IJhpoDJpMKuI9VMn%2FtCnOqaEnqo%2BmTkv1wReOg%3D&amp;reserved=
> 0
> 
> Thank you!
> 
> Best regards,
> Shuping
> 
> > -----Original Message-----
> > From: tom petch [mailto:[e-mail]]
> > Sent: Saturday, January 23, 2021 8:09 PM
> > To: Pengshuping (Peng Shuping) <[e-mail]>;
> > draft-per-app-networking-considerations
> > <[e-mail]>
> > Cc: [e-mail]; [e-mail]; [e-mail]
> > Subject: Re: [Apn] A new draft on APN for your review, thank you!
> >
> > From: Int-area <[e-mail]> on behalf of Pengshuping
> > (Peng
> > Shuping) <[e-mail]>
> > Sent: 22 January 2021 02:08
> >
> > Dear authors,
> >
> > We have updated the APN BoF Proposal as attached. The suggestions in
> > your draft and the
> >
> > <tp>
> >
> > Whatever APN may stand for!  I looked at the I-D and the Abstract uses
> > APN with no explanation of what it is:-(  It needs expanding on first
> > use and while I could read on and perhaps find an explanation yet the
> > idea is that the Abstract tells readers whether or not this is of
> > interest to them and this Abstract does not.  The rest of the I-D may
> > be clearer but I am not gong to spend time finding out:-)
> >
> > Tom Petch
> >
> > discussions with you offline inspired us a lot. The support of the
> > user/app group is explicitly shown in the text although it was
> > implicitly included. We have made a lot of efforts on clarifying the
> > scope of the work, introducing the basic solution, and describing the
> > concrete use case. Please advise whether we are clear now and how we
> > can improve further, especially on the privacy concerns. Thank you!
> >
> > This posted draft,
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdata
> >
> tracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-peng-apn-scope-gap-analysis&amp
> ;
> >
> data=04%7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe27
> 4b08d8
> >
> c03cbfa5%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C63747071
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> MwAXm5GHQ
> > 4IgoiJDwU0Wo5Y%3D&amp;reserved=0, would be able to give you more
> > complete information. Please also refer to the recent discussions in
> > the archives
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail
> >
> archive.ietf.org%2Farch%2Fbrowse%2Fapn%2F&amp;data=04%7C01%7Clin
> da.dun
> >
> bar%40futurewei.com%7C8aa274f07f8a42fe274b08d8c03cbfa5%7C0fee8ff
> 2a3b24
> >
> 0189c753a1d5591fedc%7C1%7C0%7C637470714463036422%7CUnknown%
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> Ad0pq24%2FU4%2FLE%3D&amp;reserved=0 if you have not subscribed the
> APN mailing list yet. Based on discussions and suggestions we received, we
> will update this draft accordingly. Your reviews and comments will be very
> much appreciated.
> >
> > Thank you!
> >
> > Best regards,
> > Shuping
> >
> >
> >
> > From: Apn [mailto:[e-mail]] On Behalf Of Pengshuping (Peng
> > Shuping)
> > Sent: Tuesday, December 15, 2020 11:12 AM
> > To: [e-mail]; [e-mail]
> > Subject: [Apn] A new draft on APN for your review, thank you!
> >
> >
> > Dear all,
> >
> >
> >
> > A new draft on APN has been posted,
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdata
> tracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-peng-apn-scope-gap-analysis&amp
> ;data=04%7C01%7Clinda.dunbar%40futurewei.com%7C8aa274f07f8a42fe2
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> ed=0.
> >
> >
> >
> > In this draft, we clarified the scope of the APN work in IETF,
> > introduced an example use case and the basic solution. Moreover, we
> > compared with the existing "similar" work/solutions and did corresponding
> gap analysis.
> >
> >
> >
> > Your review and comments are very much appreciated. Thank you!
> >
> >
> >
> > Best regards,
> >
> > Shuping
> >
> >
> >
> >
> >
> > A new version of I-D, draft-peng-apn-scope-gap-analysis-00.txt
> >
> > has been successfully submitted by Shuping Peng and posted to the IETF
> > repository.
> >
> >
> >
> > Name:              draft-peng-apn-scope-gap-analysis
> >
> > Revision: 00
> >
> > Title:                 APN Scope and Gap Analysis
> >
> > Document date:      2020-12-16
> >
> > Group:              Individual Submission
> >
> > Pages:              11
> >
> > URL:
> >
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> w.
> >
> ietf.org%2Farchive%2Fid%2Fdraft-peng-apn-scope-gap-analysis-00.txt&amp
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> > Gvi90%3D&amp;reserved=0
> >
> >
> >
> >
> >
> > Abstract:
> >
> >    The APN work in IETF is focused on developing a framework and set
> > of
> >
> >    mechanisms to derive, convey and use an identifier to allow for
> >
> >    implementing fine-grain user-, application-, and service-level
> >
> >    requirements at the network layer.  This document describes the
> > scope
> >
> >    of the APN work and the solution gap analysis.
> >
> >
> 
> --
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