diff --git a/docs/sgp/sgp_config_options.md b/docs/sgp/sgp_config_options.md
index 61285a37..dbb1e509 100644
--- a/docs/sgp/sgp_config_options.md
+++ b/docs/sgp/sgp_config_options.md
@@ -13,4 +13,14 @@ kind: ConfigMap
 metadata:
   name: amazon-vpc-cni
   namespace: kube-system
+```
+
+After changing the value of `branch-eni-cooldown`, you can verify if the change has been applied by the controller. You need describe any node in your cluster and check node events in Events list. Note: this value is applied to the cluster instead of only certain nodes.
+
+For example, after setting the value to `90`, the change will be reflected immediately in node events:
+```
+Events:
+  Type    Reason                          Age   From                     Message
+  ----    ------                          ----  ----                     -------
+  Normal  BranchENICoolDownPeriodUpdated  18s   vpc-resource-controller  Branch ENI cool down period has been updated to 1m30s
 ```
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