Merge pull request #265333 from cachai2/improveNSGPortExplanation

update nsg port description.

Author: prmerger-automator[bot]

articles/container-apps/firewall-integration.md

@@ -32,8 +32,8 @@ The following tables describe how to configure a collection of NSG allow rules.
 
 | Protocol | Source | Source ports | Destination | Destination ports | Description |
 |--|--|--|--|--|--|
-| TCP | Your client IPs | \* | Your container app's subnet<sup>1</sup> | `80`, `31080` | Allow your Client IPs to access Azure Container Apps when using HTTP. |
-| TCP | Your client IPs | \* | Your container app's subnet<sup>1</sup> | `443`, `31443` | Allow your Client IPs to access Azure Container Apps when using HTTPS. |
+| TCP | Your client IPs | \* | Your container app's subnet<sup>1</sup> | `80`, `31080` | Allow your Client IPs to access Azure Container Apps when using HTTP. `31080` is the port on which the Container Apps Environment Edge Proxy responds to the HTTP traffic. It is behind the internal load balancer.  |
+| TCP | Your client IPs | \* | Your container app's subnet<sup>1</sup> | `443`, `31443` | Allow your Client IPs to access Azure Container Apps when using HTTPS. `31443` is the port on which the Container Apps Environment Edge Proxy responds to the HTTPS traffic. It is behind the internal load balancer. |
 | TCP | AzureLoadBalancer | \* | Your container app's subnet | `30000-32676`<sup>2</sup> | Allow Azure Load Balancer to probe backend pools. | 
 
 # [Consumption only environment](#tab/consumption-only)