RADIUS configuration in Cisco 3650 with different privilege levels

I want to configure RADIUS based authentication on Cisco catalyst 3650 switch [IOS-XE] with different privilege level for RADIUS users.

But how to assign different privilege levels for RADIUS authenticated users ?
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First of all for a Cisco devices , controlling the user levels usually is configured by TACACS+ product.
This product you can download from Cisco.com but it is not free.

If you want to use RADIUS server to easily manage username and passwords.
It is also possible. You have to configure RADIUS server. It may be a Microsoft IAS ( new name is Microsoft NPS). At the switch side you have to say where is the radius server located. Here is a example for 3 levels:

aaa authentication login default group none
aaa authentication login SW-Local group local
aaa authorization config-commands
aaa authorization exec TAC group radius none
aaa authorization commands 0 TAC group radius  
aaa authorization commands 1 TAC group radius
aaa authorization commands 15 TAC group radius
aaa accounting commands 0 TAC start-stop group radius
aaa accounting commands 1 TAC start-stop group radius
aaa accounting commands 15 TAC start-stop group radius
ip domain-name bt.com
tacacs-server host
tacacs-server directed-request
tacacs-server key cisco
line vty 0 4
 authorization commands 0 TAC
 authorization commands 1 TAC
 authorization commands 15 TAC
 authorization exec TAC
 accounting commands 0 TAC
 accounting commands 1 TAC
 accounting commands 15 TAC

PS: Previously you have to prepare levels in Cisco device side.

But, easyest way is to prepare all this stuff in device itself.
Here i have attached a simple power point file. please check it. it might help you also.

Mohammad AsifNetwork AdministratorCommented:
This can be achieved by mapping privilege level in vendor specific attribute in RADIUS server.

Ref: http://blog.arwin.me/os/cisco/how-to-setup-cisco-ios-to-authenticate-via-active-directory/

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