title: OpenShift/Kubernetes SDN: Meaning of NetId 0
body: <p>When I run <code>oc get netnamespaces</code>, I get the following lines, among others:</p>
  
  <pre><code>NAME                                        NETID      EGRESS IPS
  default                                     0          []
  kube-service-catalog                        0          []
  sandbox-foo                                 9175549    []
  </code></pre>
  
  <p>What is the meaning of <code>NETID = 0</code>? Is this a global network, that is accessible for all other projects?</p>
  
  <p>We're running OpenShift 3.9.</p>