CPU/vCPU sizing on rseries

Hi ukhan20​ 

One approach to consider is to break down the L4/L7 requirements on a per vCPU basis.  Starting off with LTM only this is a raw idea of what you would need vCPU (LTM Only)   

L4 190Gbps/36vCPU (r10900 max vCPU allocations) = about 5.3Gbps/vCPU  
L7 190Gbps/36vCPU (r10900 max vCPU allocations) = about 5.3Gbps/vCPU  

We aren't even taking into account AFM or AWAF vCPU requirements.  Applying some base multipliers rough estimation.

AFM at 100Gbps  L4 100/ 0.6 x 5.3Gbps = 31vCPU approximation

AWAF at 50Gbps L7 50 /  .25 x 5.3Gbps = 38 vCPU approximation

I don't think a pair of a r10900 would be sufficient.  You might want to look at r12K's and pairs of them as well.  If your looking for a chassis solution I think Velos CX1610 with BX520 blade or CX410 w/ multiple BX110 blades would be best since you can easily upgrade by adding blade capacity without requiring network/topology changes.