Document URL: https://access.redhat.com/documentation/en/openshift-enterprise/version-3.0/openshift-enterprise-30-installation-and-configuration/chapter-2-installing#prereq-networking Section Number and Name: 2.2.3. Environment Requirements -> Networking Describe the issue: OpenShift Enterprise can be installed in a Cloud environment (RHOSE/AWS/Azure/etc) where security groups need to be defined to allow node communication. Currently it is not mentioned that certain ports need to be open for the environment to operate, for example UDP/4789 essential for SDN operation. Suggestions for improvement: Document required ports and functions Additional information: this is currently covered in Knowledge Base articles: https://access.redhat.com/solutions/1520653 https://access.redhat.com/solutions/1751123
*** This bug has been marked as a duplicate of bug 1270960 ***