Hello, In connection to the draft 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://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#section-5.8.1 <https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01%23section-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#section-5.8.1 <https://tools.ietf.org/html/draft-ietf-netmod-yang-packages-01%23section-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: balazs.leng...@ericsson.com
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