If you issue the command : sh run all,you can see the default configuration which you do not normally see.

You would see :

threat-detection rate scanning-threat rate-interval 3600 average-rate 4 burst-rate 8

which suggests the parameters for the " threat detection scanning threat feature ".

If you are getting too much of logs :

1. Disable threat detection altogether.The memory usage will also come down considerably when you do this.

2. Change the parameters by running the above command with different values.

I see that there is a match in burst rate value,so increase that to ,let's say 10.

I also see average configured rate is 4 and your f/w is seeing traffic of avg. rate of 8.So,change it to 10 or 12.That should take care of log messages.

Last,disable the message itself so that you do n't see it.

no logging message

Regards,

Sushil