title: Deploying Istio CNI along with VPC Native CNIS in kubernetes cluster
body: <p>managed k8s services like EKS and GKE provide cloud native CNIS.</p>
  <p><a href="https://docs.aws.amazon.com/eks/latest/userguide/pod-networking.html" rel="nofollow noreferrer">https://docs.aws.amazon.com/eks/latest/userguide/pod-networking.html</a>
  <a href="https://cloud.google.com/kubernetes-engine/docs/concepts/alias-ips" rel="nofollow noreferrer">https://cloud.google.com/kubernetes-engine/docs/concepts/alias-ips</a></p>
  <p>we can install also deploy  service mesh like istio provided CNI in the cluster
  <a href="https://istio.io/latest/docs/setup/additional-setup/cni/" rel="nofollow noreferrer">https://istio.io/latest/docs/setup/additional-setup/cni/</a></p>
  <p>Now As part of the Istio installation,  if we deploy Istio CNI along with VPC native CNI
  how would  the cluster network behave  since both CNI's are running in parallel inside the cluster.</p>