Re: [DMM] [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt
Hi Satoru, I saw in your presentation you made in Singapore at 5gangip side meeting that SRv6 needs SDN controller to put SIDs to the nodes with its functions. Can you elaborate on that? My concern is that I wonder if 3GPP supports SDN, especially what would be the south bound interface? Regards, Behcet On Thu, Feb 8, 2018 at 3:00 AM, Satoru Matsushima < satoru.matsush...@gmail.com> wrote: > Hello Kalyani, > > > [..snip..] > > > Your slides 9 – 13 show interactions between UPFs and SMF. There are 2 > kinds of UPFs: > > Anchor type UPF and service function type UPF. What are the > functionalities of these? > > Please find some functionalities in the SRv6 mobile Uplane draft: > https://tools.ietf.org/html/draft-ietf-dmm-srv6-mobile-uplane-00#section-5 > > When it comes to anchor, it should be equivalent with PSA, PDU Session > Anchor, in TS23.501 of 3GPP 5G_ph1 terminology. > > You would also find various SRv6 functions in the network programming > draft: > https://tools.ietf.org/html/draft-filsfils-spring-srv6- > network-programming-03 > > Maybe you can see SRv6 mobile uplane as a set of SRv6 functions like a > SRv6 profile for mobile with some augment. > > When it comes to service function type UPF, you name it. Following draft > exhibits how service chain can be done by SRv6: > https://tools.ietf.org/html/draft-xuclad-spring-sr-service-chaining-00 > > > > What are the changes in SMF functionalities to support SRv6? Is the > interface between > > SMF and UPFs based on N4/Sx (PFCP in TS 29.244)? > > SMF functionalities seems still work in progress so that I couldn’t say > clearly what the change to it. > In CUPS architecture for both Rel-14 and Rel-15, PFCP is expected as Sx > and N4 for SRv6 Uplane with no change to over-the-wire messages in basic > mode operation: > https://tools.ietf.org/html/draft-ietf-dmm-srv6-mobile- > uplane-00#section-8.1 > > > > Also you show IPv6/SRv6 nodes in those slides. Are the UPFs ‘overlaid’ > on IPv6/SRv6 nodes? > > Are these UPFs VNFs? Or are UPFs implemented on IPv6/SRv6 nodes? > > > > When you see UPF specifically it should be controlled by SMF through N4, > they are not the UPFs. > But you might see them as UPFs if a SMF doesn’t control them directly but > the SMF can put the sessions to it through some other means. > 3GPP SA2 has studied on that case (ETSUN). We consider how SMF deal with > that case and SRv6 may help to solve the issues to it in simpler way. > Please let me know if you are interested in. > > Cheers, > --satoru > ___ > dmm mailing list > dmm@ietf.org > https://www.ietf.org/mailman/listinfo/dmm > ___ dmm mailing list dmm@ietf.org https://www.ietf.org/mailman/listinfo/dmm
Re: [DMM] [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt
Hello Kalyani, > [..snip..] > Your slides 9 – 13 show interactions between UPFs and SMF. There are 2 kinds > of UPFs: > Anchor type UPF and service function type UPF. What are the functionalities > of these? Please find some functionalities in the SRv6 mobile Uplane draft: https://tools.ietf.org/html/draft-ietf-dmm-srv6-mobile-uplane-00#section-5 When it comes to anchor, it should be equivalent with PSA, PDU Session Anchor, in TS23.501 of 3GPP 5G_ph1 terminology. You would also find various SRv6 functions in the network programming draft: https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-03 Maybe you can see SRv6 mobile uplane as a set of SRv6 functions like a SRv6 profile for mobile with some augment. When it comes to service function type UPF, you name it. Following draft exhibits how service chain can be done by SRv6: https://tools.ietf.org/html/draft-xuclad-spring-sr-service-chaining-00 > What are the changes in SMF functionalities to support SRv6? Is the interface > between > SMF and UPFs based on N4/Sx (PFCP in TS 29.244)? SMF functionalities seems still work in progress so that I couldn’t say clearly what the change to it. In CUPS architecture for both Rel-14 and Rel-15, PFCP is expected as Sx and N4 for SRv6 Uplane with no change to over-the-wire messages in basic mode operation: https://tools.ietf.org/html/draft-ietf-dmm-srv6-mobile-uplane-00#section-8.1 > Also you show IPv6/SRv6 nodes in those slides. Are the UPFs ‘overlaid’ on > IPv6/SRv6 nodes? > Are these UPFs VNFs? Or are UPFs implemented on IPv6/SRv6 nodes? > When you see UPF specifically it should be controlled by SMF through N4, they are not the UPFs. But you might see them as UPFs if a SMF doesn’t control them directly but the SMF can put the sessions to it through some other means. 3GPP SA2 has studied on that case (ETSUN). We consider how SMF deal with that case and SRv6 may help to solve the issues to it in simpler way. Please let me know if you are interested in. Cheers, --satoru ___ dmm mailing list dmm@ietf.org https://www.ietf.org/mailman/listinfo/dmm
Re: [DMM] [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt
Hello Kalyani, Thank you for your feedbacks. I’ll take it into account. And yes, slide 6 shows just one deployment scenario. A spreadsheet which I shared in my google drive would help to see the rest of scenarios. Perhaps those would be deployed on somewhere in operators. Cheers, --satoru > 2018/02/06 22:23、Bogineni, Kalyani のメール: > > Satoru: > > Your slide 6 shows one implementation (other operators may have other > implementations). > Below is the Figure from CT4 TR 29.891. Can you show how your slide 7 impacts > this > end-to-end protocol stack and which interfaces are impacted? > > > > > Your slides 9 – 13 show interactions between UPFs and SMF. There are 2 kinds > of UPFs: > Anchor type UPF and service function type UPF. What are the functionalities > of these? > What are the changes in SMF functionalities to support SRv6? Is the interface > between > SMF and UPFs based on N4/Sx (PFCP in TS 29.244)? > Also you show IPv6/SRv6 nodes in those slides. Are the UPFs ‘overlaid’ on > IPv6/SRv6 nodes? > Are these UPFs VNFs? Or are UPFs implemented on IPv6/SRv6 nodes? > > It would be beneficial if you can provide clarifications and add a section to > your draft. > > Kalyani > > -Original Message- > From: Satoru Matsushima [mailto:satoru.matsush...@gmail.com] > Sent: Tuesday, February 6, 2018 2:53 AM > To: Bogineni, Kalyani > Subject: [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt > > Hello Kalyani, > > > Do you have a deck that shows 5G architecture, procedures and > > services for your functions? > > Hope you find it in a tdoc from the following link: > > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.3gpp.org_ftp_tsg-5Fct_WG4-5Fprotocollars-5Fex-2DCN4_TSGCT4-5F81-5FReno_Docs_C4-2D176177.zip&d=DwIFAg&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=v2OzLQOmEladDjJ7cnv7BOUHOIJU3q5_zuGVajrMM6U&s=vvhsviIu1Hxx94-BJWqR63wLWmlzMdhh_X8op2Xv_y4&e= > > Cheers, > --satoru > ___ dmm mailing list dmm@ietf.org https://www.ietf.org/mailman/listinfo/dmm
Re: [DMM] [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt
Satoru: Your slide 6 shows one implementation (other operators may have other implementations). Below is the Figure from CT4 TR 29.891. Can you show how your slide 7 impacts this end-to-end protocol stack and which interfaces are impacted? [cid:image002.png@01D39F22.C6C2DC80] Your slides 9 - 13 show interactions between UPFs and SMF. There are 2 kinds of UPFs: Anchor type UPF and service function type UPF. What are the functionalities of these? What are the changes in SMF functionalities to support SRv6? Is the interface between SMF and UPFs based on N4/Sx (PFCP in TS 29.244)? Also you show IPv6/SRv6 nodes in those slides. Are the UPFs 'overlaid' on IPv6/SRv6 nodes? Are these UPFs VNFs? Or are UPFs implemented on IPv6/SRv6 nodes? It would be beneficial if you can provide clarifications and add a section to your draft. Kalyani -Original Message- From: Satoru Matsushima [mailto:satoru.matsush...@gmail.com] Sent: Tuesday, February 6, 2018 2:53 AM To: Bogineni, Kalyani Subject: [E] Re: review comments on ] draft-ietf-dmm-srv6-mobile-uplane-00.txt Hello Kalyani, > Do you have a deck that shows 5G architecture, procedures and > services for your functions? Hope you find it in a tdoc from the following link: https://urldefense.proofpoint.com/v2/url?u=http-3A__www.3gpp.org_ftp_tsg-5Fct_WG4-5Fprotocollars-5Fex-2DCN4_TSGCT4-5F81-5FReno_Docs_C4-2D176177.zip&d=DwIFAg&c=udBTRvFvXC5Dhqg7UHpJlPps3mZ3LRxpb6__0PomBTQ&r=IdiSODh8aDRjdCeGgd9MznLHMYKgKcs_YSwXBDiaofh47oilzaXYRYETcBynUdpT&m=v2OzLQOmEladDjJ7cnv7BOUHOIJU3q5_zuGVajrMM6U&s=vvhsviIu1Hxx94-BJWqR63wLWmlzMdhh_X8op2Xv_y4&e= Cheers, --satoru image001.emz Description: image001.emz oledata.mso Description: oledata.mso ___ dmm mailing list dmm@ietf.org https://www.ietf.org/mailman/listinfo/dmm
