Chapter 15 Unified Threat Management for FortiOS 5.0 : Application control : Application traffic shaping
  
Application traffic shaping
You can apply traffic shaping for application list entries you configure to pass. Traffic shaping enables you to limit or guarantee the bandwidth available to the application or applications specified in an application list entry. You can also prioritize traffic by using traffic shaping.
You can create or edit traffic shapers by going to Firewall Objects > Traffic Shaper > Shared. Per‑IP traffic shapers are not available for use in application traffic shaping.
For more information about traffic shaping, see “Traffic shaping methods”.