Hi,
Does anyone have any information on how much the CPU is impacted by SSL VPNs on Cisco ASA 5500's?
I believe that the ASA offloads a lot of its encryption/decryption on a built in VPN accelerator rather than placing load on the main CPU. Is this correct?
According to the ASA 5520 specs - it can handle a throughput of up to 225Mbps of VPN traffic. Of course, it does not say whether this is SSL or IPSEC but I would like to understand what impact say 100Mbps of SSL VPN traffic would have on the main CPU.
Can anyone please advise?
We need this information to gauge whether an existing firewall has enough capacity to cope with existing load plus additional new SSL VPNs.
Thanks
Paul