The Cisco Nexus radius setup is a little different then the IOS radius setup in NPS.
Windows NPS Network Policy
Add your Windows Group and NAS IPv4 Addresses
Add your Authentication Methods
Add these two Attribute Values:
priv-lvl=15
shell:roles=*”network-admin vdc-admin”
Cisco NEXUS Configuration
radius-server retransmit 3
radius-server deadtime 5
radius-server host 10.1.1.1 key RADIUS-KEY authentication accounting
radius-server host 10.1.1.2 key RADIUS-KEY authentication accounting
aaa group server radius MTR-Radius
server 10.1.1.2
server 10.1.1.2
source-interface loopback0
aaa authentication login default group MTR-Radius local
aaa authentication login console local
aaa accounting default group MTR-Radius
aaa authentication login error-enable