Chapter 23 WAN Optimization, Web Cache, Explicit Proxy, and WCCP : Configuring WAN optimization : Monitoring WAN optimization performance
  
Monitoring WAN optimization performance
Using WAN optimization monitoring, you can confirm that a FortiGate unit is optimizing traffic and view estimates of the amount of bandwidth saved. The WAN optimization monitor presents collected log information in a graphical format to show network traffic summary and bandwidth optimization information.
To view the WAN optimization monitor, go to WAN Opt. & Cache > Monitor > WAN Opt Monitor.
Figure 330: WAN optimization monitor