Add new network capabilities as advisory

Based on our analysis [1], there were several network tests
available which weren't included in any interop guideline.
This commit adds those tests under a few new capabilities which
are added as advisory for now. They can be moved to required
after one cycle being under advisory. Interop WG will review
these tests for inclusion for the next guideline cycle.

[1] https://etherpad.opendev.org/p/refstack-test-analysis

Change-Id: Ibd3b08e8a38eb6cf21766c0a33bea49d1b9acb3d

guidelines/next.json

@@ -174,7 +174,8 @@
           "compute-images-metadata-set",
           "compute-images-metadata-update",
           "networks-security-groups-CRUD-2",
-          "networks-dhcp"
+          "networks-dhcp",
+          "networks-floating-ips-CRUD"
         ],
         "deprecated": [],
         "removed": []
@@ -2394,6 +2395,48 @@
         }
       }
     },
+    "networks-floating-ips-CRUD": {
+      "achievements": [
+          "foundation",
+          "complete",
+          "doc",
+          "proximity",
+          "clients",
+          "discover",
+          "future",
+          "atomic",
+          "stable",
+          "tools",
+          "deployed"
+      ],
+      "admin": false,
+      "description": "Basic CRUD operations with floation IPs using the Neutron API",
+      "project": "neutron",
+      "required_since": "2021.07",
+      "tests": {
+        "tempest.api.network.test_floating_ips.FloatingIPTestJSON.test_create_floating_ip_specifying_a_fixed_ip_address": {
+          "idempotent_id": "id-36de4bd0-f09c-43e3-a8e1-1decc1ffd3a5"
+        },
+        "tempest.api.network.test_floating_ips.FloatingIPTestJSON.test_create_update_floatingip_with_port_multiple_ip_address": {
+          "idempotent_id": "id-45c4c683-ea97-41ef-9c51-5e9802f2f3d7"
+        },
+        "tempest.api.network.test_floating_ips.FloatingIPTestJSON.test_floating_ip_delete_port": {
+          "idempotent_id": "id-e1f6bffd-442f-4668-b30e-df13f2705e77"
+        },
+        "tempest.api.network.test_floating_ips.FloatingIPTestJSON.test_floating_ip_update_different_router": {
+          "idempotent_id": "id-1bb2f731-fe5a-4b8c-8409-799ade1bed4d"
+        },
+        "tempest.api.network.test_floating_ips_negative.FloatingIPNegativeTestJSON.test_associate_floatingip_port_ext_net_unreachable": {
+          "idempotent_id": "id-6b3b8797-6d43-4191-985c-c48b773eb429"
+        },
+        "tempest.api.network.test_floating_ips_negative.FloatingIPNegativeTestJSON.test_create_floatingip_in_private_network": {
+          "idempotent_id": "id-50b9aeb4-9f0b-48ee-aa31-fa955a48ff54"
+        },
+        "tempest.api.network.test_floating_ips_negative.FloatingIPNegativeTestJSON.test_create_floatingip_with_port_ext_net_unreachable": {
+          "idempotent_id": "id-22996ea8-4a81-4b27-b6e1-fa5df92fa5e8"
+        }
+      }
+    },
     "networks-l2-CRUD": {
       "achievements": [
           "foundation",