I have high cpu load on ASA 5520, I'm supposing there is burst traffic (even though I do not have many interface overrun errors). How can I detect burst traffic ? I've tryied to use a netflow collector but I could configure on ASA a timeout rate of 1 minute and probably burst traffic is restricted to some milliseconds.
You sure burst traffic can't affect cpu load ? I really don't know what to search for, connections? inspection service policy? asp drops? intefaces throughput .. nothing has really much changed. Issue has started after I upgraded from 7.2 to 8.2. The only difference is basic threat detection which now is enabled but actually it doesn't impact cpu load at all.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...