I am doing pre-deployment testing for 7.2 on a PIX535. I started pumping engineered ICMP traffic from IXIA at 75MB and 64 frame size just for traffic flow validation (allowed via ACL). For some reason, the CPU spiked to 99%. I was under the impression that every echo-request/echo-reply from the IXIA is considered as one session thus really busy-ing up the PIX CPU. When I checked the PIX, there were only 2 connections.
"show conn" does show 2 connections and is coming from the IXIA to remote destination. I was thinking that it probably is the limitation of the PIX. I am pumping 148,800 frames per seconds of ICMPs and every one of those frames will go through the PIX CPU. Does anybody know what is the pps limitation of the PIX535? I have a VAC+ installed on the PIX.
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