Hello Mahesh, I heard many discussions about this, but I can’t supply you with a specific example just now. I will ask if my colleagues working in ORAN can help.
Regards Balazs From: Mahesh Jethanandani <mjethanand...@gmail.com> Sent: 2020. november 18., szerda 19:02 To: Balázs Lengyel <balazs.leng...@ericsson.com> Cc: netmod@ietf.org; Robert Petersen <robert.peter...@ericsson.com>; Jacqueline Beaulac S <jacqueline.s.beau...@ericsson.com> Subject: Re: [netmod] Liaison statement to ORAN Hi Balazs, Do you have an example of where O-RAN is trying to deviate a 3GPP model? I would agree that for O-RAN to deviate a model would be a problem, and that it should be left to vendors to decide if they want to deviate the 3GPP model. On Nov 18, 2020, at 12:09 AM, Balázs Lengyel <balazs.lengyel=40ericsson....@dmarc.ietf.org <mailto:balazs.lengyel=40ericsson....@dmarc.ietf.org> > wrote: Hello, In connection to the draft <https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01> https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01 I propose to send a liaison statement from IETF Netmod to ORAN. The issue: 3GPP is standardizing a good number of YANG modules as part of the 3gpp TS 28.541 and 28.623 ( <https://protect2.fireeye.com/v1/url?k=f08a6b09-af11524a-f08a2b92-861fcb972bfc-d3713e17a0e10674&q=1&e=c0b7de7e-d7ca-4671-b5cc-cecfc1b188d5&u=https%3A%2F%2Fforge.3gpp.org%2Frep%2Fsa5%2FMnS%2Ftree%2FRel17-draft%2Fyang-models> https://forge.3gpp.org/rep/sa5/MnS/tree/Rel17-draft/yang-models). ORAN plans to re-use this models, but possibly refine them in some ways. They are considering using deviations to do this. E.g. change config=true schemas node to config=false. This creates problems as documented in <https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01%23section-5.8.1> https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01#section-5.8.1 - Deviations by an SDO (standard defining organization) prevent implementations from reporting their own deviations for the same nodes. - Deviations by an SDO prevent implementations from conforming to the standards specified by both SDOs. To avoid these problems I propose to send the following text to ORAN: “IETF NETMOD working group requests ORAN to avoid using deviations as part of its specification. As documented in <https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01%23section-5.8.1> https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01#section-5.8.1 the usage of deviations would prevent: * Vendors to implement their own deviations for the same YANG schema nodes * Vendors to claim conformance to both ORAN and 3GPP specifications which are in some cases used as a base for the ORAN YANG models Note: These problems with deviations exists even if YANG modules are used without using YANG packages. Regards Balazs -- Balazs Lengyel Senior Specialist Ericsson Hungary Ltd. Mobile: +36-70-330-7909 email: <mailto:balazs.leng...@ericsson.com> balazs.leng...@ericsson.com _______________________________________________ netmod mailing list <mailto:netmod@ietf.org> netmod@ietf.org <https://www.ietf.org/mailman/listinfo/netmod> https://www.ietf.org/mailman/listinfo/netmod Mahesh Jethanandani mjethanand...@gmail.com <mailto:mjethanand...@gmail.com>
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ netmod mailing list netmod@ietf.org https://www.ietf.org/mailman/listinfo/netmod
