Description of problem: We need to add these information to release notes. We found that tests below randomly fail due to known bug - https://bugzilla.redhat.com/show_bug.cgi?id=1566148 Security group tests 1)tempest.scenario.test_security_groups_basic_ops.TestSecurityGroupsBasicOps.test_cross_tenant_traffic[compute,id-e79f879e-debb-440c-a7e4-efeda05b6848,network] 2)tempest.scenario.test_security_groups_basic_ops.TestSecurityGroupsBasicOps.test_port_update_new_security_group[compute,id-f4d556d7-1526-42ad-bafb-6bebf48568f6,network,slow] 1 3)tempest.scenario.test_security_groups_basic_ops.TestSecurityGroupsBasicOps.test_boot_into_disabled_port_security_network_without_secgroup[compute,id-13ccf253-e5ad-424b-9c4a-97b88a026699,network,slow] Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: