Merge pull request #287405 from halkazwini/nw-nsgflow2

Retirement note

Author: ShannonLeavitt

articles/network-watcher/nsg-flow-logs-overview.md

@@ -6,13 +6,15 @@ author: halkazwini
 ms.author: halkazwini
 ms.service: azure-network-watcher
 ms.topic: concept-article
-ms.date: 09/17/2024
+ms.date: 09/26/2024
 
 #CustomerIntent: As an Azure administrator, I want to learn about NSG flow logs so that I can log my network traffic to analyze and optimize the network performance.
 ---
 
 # Flow logging for network security groups
 
+[!INCLUDE [NSG flow logs retirement](../../includes/network-watcher-nsg-flow-logs-retirement.md)]
+
 Network security group (NSG) flow logging is a feature of Azure Network Watcher that allows you to log information about IP traffic flowing through a [network security group](../virtual-network/network-security-groups-overview.md). Flow data is sent to Azure Storage from where you can access it and export it to any visualization tool, security information and event management (SIEM) solution, or intrusion detection system (IDS) of your choice.
 
 :::image type="content" source="./media/nsg-flow-logs-overview/nsg-flow-logs-portal.png" alt-text="Screenshot showing Network Watcher NSG flow logs page in the Azure portal.":::

includes/network-watcher-nsg-flow-logs-retirement.md

@@ -0,0 +1,10 @@
+---
+author: halkazwini
+ms.author: halkazwini
+ms.service: azure-network-watcher
+ms.topic: include
+ms.date: 09/26/2024
+ms.custom: include file
+---
+> [!IMPORTANT]
+> On September 30, 2027, network security group (NSG) flow logs will be retired. As part of this retirement, you'll no longer be able to create new NSG flow logs starting June 30, 2025. We recommend migrating to [virtual network flow logs](../articles/network-watcher/vnet-flow-logs-overview.md), which overcome the limitations of NSG flow logs. After the retirement date, traffic analytics enabled with NSG flow logs will no longer be supported, and existing NSG flow logs resources in your subscriptions will be deleted. However, NSG flow logs records won't be deleted and will continue to follow their respective retention policies. For more information, see the [official announcement](https://azure.microsoft.com/updates/v2/Azure-NSG-flow-logs-Retirement).