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: 
You can use the security licenses to activate the advanced security features offered on the Cisco 4000 Series ISR platform. The HSEC license is required for a feature to have full crypto functionality. Without the HSEC license, only 225 secure tunnels and 85 Mbps of crypto bandwidth would be available.

[enter link description here](http://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/guide-c07-732797.html)

The license quoted above however, is a FL-4320-PERF-K9, which will increase routing throughput from 50Mbps to 100Mbps on the Ethernet interfaces. You MUST activate it once installed:

1 – Install license:

```
06600r2#license install flash:FDO210102MX_20170401103432129.lic 
Installing licenses from "flash:FDO210102MX_20170401103432129.lic" 
Installing...Feature:throughput...Successful:Supported
1/1 licenses were successfully installed 

```

2 – Apply/**configure** the new throughput level:

```
06600r2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

06600r2(config)#platform hardware throughput level 100000 
% The config will take effect on next reboot

06600r2#show platform hardware throughput level 
The current throughput level is 50000 kb/s

```

Following reboot:

3 – Confirm throughput:

```
06600r1#show platform hardware throughput level 
The current throughput level is 100000 kb/s

```
You may need to enter the command "platform hardware throughput level xxxxxx" in order to enable the license.