Update L4 steps and AIO install steps

Author: EthanChangAED

articles/iot-operations/manage-layered-network/howto-configure-aks-edge-essentials-layered-network.md

@@ -23,6 +23,7 @@ This walkthrough is an example of deploying Azure IoT Operations to a special en
 > - [Deployment overview - Azure IoT Operations](../deploy-iot-ops/overview-deploy.md)
 > - [Prepare your Kubernetes cluster - Azure IoT Operations](../deploy-iot-ops/howto-prepare-cluster.md)
 > - [Deploy Azure IoT Operations to an Arc-enabled Kubernetes cluster - Azure IoT Operations](../deploy-iot-ops/howto-deploy-iot-operations.md)
+>     - You can reuse the cloud dependencies you create for this trial to reduce the complexity when setting up Azure IoT Operations in a Purdue Network environment. For example, **Key vault**, **Managed Identity** and **Storage account**.
 >
 > You can't migrate a previously deployed Azure IoT Operations from its original network to an isolated network. For this scenario, follow the steps to begin with creating new clusters.
 
@@ -61,17 +62,19 @@ The next step is to set up an Arc-enabled cluster in level 3 that's compatible f
 # [K3S Cluster](#tab/k3s)
 
 - Follow the [Prepare your Azure Arc-enabled Kubernetes cluster](../deploy-iot-ops/howto-prepare-cluster.md) to set up and Arc-enable your K3s cluster.
-  1. You can prepare your K3s cluster with internet access.
-  1. After install the required software components and set up the K3s cluster, you can restrict the internet access for this cluster and rely on the **custom DNS** that is prepared from earlier steps to direct the network traffic to the Layered Network Management component at level 4.
-      - If you choose to use CoreDNS instead of DNS server, you need to configure the [CoreDNS](howto-configure-layered-network.md#configure-custom-dns) after setup the K3S cluster.
+  1. Prepare your K3s cluster with internet access.
+  1. It is recommanded to install the kubectl client with [these steps](/azure/azure-arc/kubernetes/troubleshooting#azure-cli) to ensure kubectl client is installed properly for Arc-enablement.
   1. Proceed to Arc-enable the cluster.
+  1. Before you disable internet access of your cluster, you also need to complete the [Prerequisites for deploying Azure IoT Operations](/azure/iot-operations/deploy-iot-ops/howto-deploy-iot-operations#prerequisites).
+  1. After install the required software components and set up the K3s cluster, you can restrict the internet access for this cluster and configure the [CoreDNS](howto-configure-layered-network.md#configure-custom-dns) to redirect network traffic to your Layered Network Management service at level 4.
+  
 
 # [AKS Edge Essentials](#tab/aksee)
 
 - Follow the [Prepare your Azure Arc-enabled Kubernetes cluster](../deploy-iot-ops/howto-prepare-cluster.md) to set up and Arc-enable your AKS Edge Essentials cluster.
-  1. You can prepare the AKS Edge Essentials with internet access.
-  1. For the step of **Get the `objectID`** you  run the command on a different machine that has internet access.
-  1. After setting up the AKS Edge Essentials cluster, you can restrict the internet access for this cluster and rely on the **DNS server** that is prepared from earlier steps to direct the network traffic to the Layered Network Management component at level 4. 
+  1. Prepare the AKS Edge Essentials with internet access.
+  1. Before you disable internet access of your cluster, you also need to complete the [Prerequisites for deploying Azure IoT Operations](/azure/iot-operations/deploy-iot-ops/howto-deploy-iot-operations#prerequisites).
+  1. After setting up the AKS Edge Essentials cluster, you can restrict the internet access for this cluster and rely on the **DNS server** that is prepared from earlier steps to redirect the network traffic to the Layered Network Management service at level 4. 
 
 ---
 

articles/iot-operations/manage-layered-network/howto-configure-l4-cluster-layered-network.md

@@ -182,6 +182,8 @@ Once your Kubernetes cluster is Arc-enabled, you can deploy the Layered Network
 Create the Layered Network Management custom resource.
 
 1. Create a `lnm-cr.yaml` file as specified:
+    - For debugging or experimentation, you can change the value of **loglevel** parameter to **debug**.
+    - For more detail about the endpoints, see [Azure IoT Operations endpoints](/azure/iot-operations/deploy-iot-ops/overview-deploy#azure-iot-operations-endpoints).
 
     ```yaml
     apiVersion: layerednetworkmgmt.iotoperations.azure.com/v1beta1
@@ -298,7 +300,6 @@ Create the Layered Network Management custom resource.
           prefixLen: 0
     ```
 
-    For debugging or experimentation, you can change the value of **loglevel** parameter to **debug**.
 
 1. Create the Custom Resource to create a Layered Network Management instance.
 
@@ -309,7 +310,7 @@ Create the Layered Network Management custom resource.
 1. View the Layered Network Management Kubernetes service:
 
     ```bash
-    kubectl get services -n azure-iot-operations
+    kubectl get services
     ```
 
     ```output