+ h. Install additional 3GPP yang models.
+
+ Download following 3GPP REL17 YANG models
+ https://forge.3gpp.org/rep/sa5/MnS/tree/Rel17-draft/yang-models
+
+ $cd l2/build/yang
+
+ _3gpp-common-top.yang
+ _3gpp-5g-common-yang-types.yang
+ _3gpp-common-yang-types.yang
+ _3gpp-common-managed-element.yang
+ _3gpp-common-measurements.yang
+ _3gpp-common-subscription-control.yang
+ _3gpp-common-fm.yang
+ _3gpp-common-trace.yang
+ _3gpp-common-managed-function.yang
+ _3gpp-nr-nrm-gnbdufunction.yang
+ _3gpp-nr-nrm-nrcelldu.yang
+ _3gpp-nr-nrm-rrmpolicy.yang
+
+ Note :There are some corrections required in _3gpp-common-trace.yang and _3gpp-common-trace.yang yang model. Please follow these steps.
+
+ $cd l2/build/yang
+ $sed -i -e 's/"IMMEDIATE_MDT"/"IMMEDIATE_MDT_ONLY"/g' _3gpp-common-trace.yang
+ $sed -i -e 's/"TRACE"/"TRACE_ONLY"/g' _3gpp-common-trace.yang
+
+ Install all the downloaded yang models.
+
+ $cd l2/build/yang
+ $sysrepoctl -i _3gpp-common-top.yang
+ $sysrepoctl -i _3gpp-5g-common-yang-types.yang
+ $sysrepoctl -i _3gpp-common-yang-types.yang
+ $sysrepoctl -i _3gpp-common-managed-element.yang
+ $sysrepoctl -i _3gpp-common-measurements.yang
+ $sysrepoctl -i _3gpp-common-subscription-control.yang
+ $sysrepoctl -i _3gpp-common-fm.yang
+ $sysrepoctl -i _3gpp-common-trace.yang
+ $sysrepoctl -i _3gpp-common-managed-function.yang
+ $sysrepoctl -i _3gpp-nr-nrm-gnbdufunction.yang
+ $sysrepoctl -i _3gpp-nr-nrm-nrcelldu.yang
+ $sysrepoctl -i _3gpp-nr-nrm-rrmpolicy.yang
+
+