I have a 2821 that I am using in a IPSSEC VPN setup and the rotuer is experiencing very high CPU utilization when traffic rates are high (40 Mpbs).
I am concerned because I have another 2821 router using the on-board VPN module and its configuration is almost identical (another spoke on the DMVPN setup) to the 2821 with AIM module but the CPU utilization is drastically lower given similar traffic loads.
The 2821 with AIM module is running 12.4(9)T4. Is there possibly improvement in later code releases?
Anyone have any CPU utilization issues with there AIM modules?
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...