we want to monitor periodically the memory utilization of our PIX firewalls. I did not find any recommendation what amount of free memory in percentage should be the threshold to look for.
In the TAC documentation it is mentioned that the free memory should not change, if at all, during normal operation. But I am missing an actual number to use as threshold.
Can somebody help me with this?
Your experience and information regarding other important performance parameters like cpu utiliziation etc. is very much appreciated.
Thanks for your help and best regards