Chapter 15 Security Profiles : AntiVirus : Antivirus concepts : Scan buffer size : Configuring the uncompression buffer
  
Configuring the uncompression buffer
In this example, the uncompressed-oversize-limit CLI command is used to change the scan buffer size to 20 megabytes for files found in HTTP traffic:
config firewall profile-protocol-options
edit “default”
config http
set uncompressed-oversize-limit 20
end
The maximum buffer size varies by model. Enter set uncompressed-oversize-limit ? to display the buffer size range for your FortiGate unit.