Hi,
Please find the answers inline
The Documentation for the 5512 states that it can handle 250 IPSec tunnels and 250 AnyConnect sessions - is that cumulative?
Yes, These are cumulative as IPSec and Anyconnect works on differently
Disregarding performance, do the 40 IPSec tunnels reduce the 250 AnyConnect capacity on a 5512 when all are active?
No, As IPsec and Anyconnect capacity is cumulative, IPSec will not reduce the 250 Anyconnect capacity.
Are you facing any issue?
Spooster IT Services Team