After the optional step of uploading the apptelemetry.pol file to flash memory using Extreme Management Center or ExtremeCloud IQ - Site Engine, activate Application Telemetry by configuring the following:
Configure the IP address of the egress interface for the GRE tunnel with the sFlow agent-ip command.
Enable sFlow with the sflow enable command.
Configure the IP address of the Analytics Engine with the sFlow collector 1 command.
Enable Application Telemetry with the app-telemetry enable command.
The following figure shows the Application Telemetry agent on various routers and switches with packets being sent to the Analytics Engine.


| 
 Number  | 
 Description  | 
|---|---|
| 
 1  | 
 Analytics Engine  | 
| 
 2  | 
 GRE tunnels  | 
| 
 3  | 
 Application Telemetry agents  |