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SFR module on ASA dropped traffic

Hello, 

 

I have two ASA in active/active with Firepower modules and security context. Yesterday suddenly the users connecting to the "users" context could not access the internet. 

I had to restart the firewall and then it worked. 

 

The only thing I could see was a higher number of messages in the Syslog indicating error 434002, which is for dropping traffic. 

 

As I am trying to see what happened, I can see that the SFR is ok(show module), but I do not see any indication of the root cause. 

 

I am thinking about the SFR not be able to process the load of traffic, but I have no indication of how to test it. 

Is there any process/document how much traffic a SFR can handle?

 

Any ideas on how to approach it?

 

Thanks and regards, 

Konstantinos

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