LTM VE performance while loadbalancing DNS (DNS profile) and Max connections

Thanks.

I'm no virtualisation expert but I wouldn't have thought ESXi should be buffering anything. Regardless, any changes made using sysctl and the like only affect the HMS and it's management interface, not the tmm/traffic ones you're concerned with.

A typical high connection rate issue would normally hammer RAM not the CPU so no point inspecting time-outs around that.

Let us know what support say when they come back to you.