Documentation max number of pods / instance

[elgamal2020]

https://github.com/awslabs/amazon-eks-ami/blob/master/files/eni-max-pods.txt

Mapping is calculated from AWS EC2 API using the following formula:

* First IP on each ENI is not used for pods

* +2 for the pods that use host-networking (AWS CNI and kube-proxy)

# of ENI * (# of IPv4 per ENI - 1) + 2

This need to be re-written in a better understandable format

The question here , can pods using multiple ENIs , do they belong to the same subnet or different subnet ?

Then why we reduce only one , as for the other 2 ENIs , there will be IPs dedicated as first IPs so we should reduce 3 ?

[jsamuel1]

And how does this calculation change when using Pod Security Groups?