Question: I'am trying to install an FL-4320-PERF-K9 (Performance) License on an ISR4321 to increase throughput from 85 mbit to 100 mbit but it tells me that there is a better license installed already.. Does anyone know what that is and how i can see that? Log messages clearly describes that it is using the maximum bandwith of 85 mbit for this license platform...

```
%CERM_DP-4-DP_TX_BW_LIMIT: Maximum Tx Bandwidth limit of 85000 Kbps reached for Crypto functionality with securityk9 technology package license.

Router#license install flash:<hidden.lic>
Installing licenses from "flash:<hidden.lic>" 
Installing...Feature:throughput...Failed:
% Error: Better license exists 

```

Here is an output of show license:

[![enter image description here](https://i.stack.imgur.com/cKc0h.png)](https://i.stack.imgur.com/cKc0h.png)

Answer: 
If throughput (performance) license is enabled as it is shown on the attached picture, your throughput is 100mbps. Using a 4321 you have 2 options. 50mbps without performance license, and 100mbps with it.
You may need to enter the command "platform hardware throughput level xxxxxx" in order to enable the license.