prereqs

Author: spelluru

articles/event-grid/configure-firewall.md

@@ -34,6 +34,20 @@ This section shows you how to use the Azure portal to create inbound IP firewall
 ## Use Azure CLI
 This section shows you how to use Azure CLI commands to create topics with inbound IP rules. The steps shown in this section are for topics. You can use similar steps to create inbound IP rules for **domains**. 
 
+
+### Prerequisites
+Update the Azure Event Grid extension for CLI by running the following command: 
+
+```azurecli-interactive
+az extension update -n eventgrid
+```
+
+If the extension isn't installed, run the following command to install it: 
+
+```azurecli-interactive
+az extension add -n eventgrid
+```
+
 ### Enable or disable public network access
 By default, the public network access is enabled for topics and domains. You can also enable it explicitly or disable it. You can restrict traffic by configuring inbound IP firewall rules. 
 
@@ -102,7 +116,8 @@ az eventgrid topic create \
     --name $topicName \
     --location $location \
     --public-network-access enabled \
-    --inbound-ip-rules <IP ADDR 1 or CIDR MASK 1> allow <IP ADDR 2 or CIDR MASK 2> allow
+    --inbound-ip-rules <IP ADDR 1 or CIDR MASK 1> allow \
+    --inbound-ip-rules <IP ADDR 2 or CIDR MASK 2> allow
 ```
 
 ### Update an existing topic to add inbound IP rules

articles/event-grid/configure-private-endpoints.md

@@ -151,6 +151,21 @@ az network private-endpoint delete --resource-group <RESOURECE GROUP NAME> --nam
 > [!NOTE]
 > The steps shown in this section are for topics. You can use similar steps to create private endpoints for **domains**. 
 
+
+
+### Prerequisites
+Update the Azure Event Grid extension for CLI by running the following command: 
+
+```azurecli-interactive
+az extension update -n eventgrid
+```
+
+If the extension isn't installed, run the following command to install it: 
+
+```azurecli-interactive
+az extension add -n eventgrid
+```
+
 ### Create a private endpoint
 To create a private endpoint, use the [az network private-endpoint create](/cli/azure/network/private-endpoint?view=azure-cli-latest#az-network-private-endpoint-create) method as shown in the following example:
 

articles/event-grid/update-tier.md

@@ -52,7 +52,19 @@ You can **upgrade** from the basic tier to the premium tier on the **Networking*
 
 ## Use Azure CLI
 This section shows you how to use Azure CLI commands to change the pricing tier of a topic. To update pricing tier of a domain, use the `az eventgrid domain update` command in a similar fashion.
- 
+
+### Prerequisites
+Update the Azure Event Grid extension for CLI by running the following command: 
+
+```azurecli-interactive
+az extension update -n eventgrid
+```
+
+If the extension isn't installed, run the following command to install it: 
+
+```azurecli-interactive
+az extension add -n eventgrid
+```
 
 ### Upgrade a topic from basic to premium