Create add_vrouter_flow_aging.md

Author: urao

add_vrouter_flow_aging.md

@@ -0,0 +1,46 @@
+# Steps to add vrouter flow_aging parameters using API
+
+1. Get UUID from the below command, say GLOBAL_UUID.
+```
+curl  http://<controller-ip>:8082/global-vrouter-configs | python -mjson.tool
+```
+
+2. Create the payload file(globaltemp.json), example for ICMP with timeout 180seconds
+```
+{
+    "global-vrouter-config": {
+        "flow_aging_timeout_list": {
+            "flow_aging_timeout": [
+                {
+                    "port": 0,
+                    "protocol": "icmp",
+                    "timeout_in_seconds": 180
+                }
+            ]
+        },
+        "uuid": "GLOBAL_UUID"
+    }
+}
+```
+3. Do a PUT operation, as below command
+```
+curl -X PUT -H "Content-Type: application/json; charset=UTF-8" -d @globaltemp.json \
+http://<controller-ip>:8082/global-vrouter-config/<GLOBAL_UUID>
+```
+4. Check if its updated, using below command
+```
+curl  http://<controller-ip>:8082/global-vrouter-config/<GLOBAL_UUID> | python -mjson.tool
+```
+5. Create the payload file(globalnull.json), to remove all protocols
+```
+{
+    "global-vrouter-config": {
+        "flow_aging_timeout_list": null,
+        "uuid": "GLOBAL_UUID"
+    }
+}
+```
+6. Do a PUT operation, as below command
+```
+curl -X PUT -H "Content-Type: application/json; charset=UTF-8" -d @globalnull.json \
+http://<controller-ip>:8082/global-vrouter-config/<GLOBAL_UUID>