text: **Note:**For more information about Open vSwitch, see this website. 
  
  OpenShift provides the following SDN plug-ins for configuring the network: 
  
  (cid:2) The ovs-subnet plug-in is the original plug-in, which provides a flat pod network in which 
  every pod can communicate with every other pod and service. This configuration is the 
  default configuration for single-tenant clusters. 
  
  (cid:2) The ovs-multitenant plug-in provides project-level isolation for pods and services. Each 
  project receives a unique Virtual Network ID (VNID) that identifies traffic from pods that 
  are assigned to the project. 
  
  Pods from different projects cannot send packets to or receive packets from pods and 
  services of a different project. However, projects that receive VNID 0 are more privileged, 
  so they can communicate with all other pods, and all other pods can communicate with 
  them. 
  
  In OpenShift Container Platform clusters, the default project has VNID 0. This designation 
  facilitates certain services, such as the load balancer, to communicate with all other pods 
  in the cluster and vice versa. 
  
  (cid:2) The ovs-networkpolicy plug-in allows project administrators to configure their own isolation 
  policies by using NetworkPolicy objects. 