Large increase in the traffic log after upgrading to FortiOS 4.0 MR3

If you recently have upgraded your Fortigate Firewall to FortiOS 4.0 MR3 perhaps you have noticed an increase in the traffic log.

FortiOS 4.0 MR3 has the value of extended-traffic-log enabled by default instead of previous versions where this value was disabled by default.

If you want to disabled this new default option, here you have the commands:

• config log [memory|disk|fortianalyzer|...] 
• filter set extended-traffic-log [enable|disable]

What does the log filter setting "other-traffic" display?