Merge pull request #170992 from mialdrid/patch-109

Update enrollment guidance

Author: PRMerger17

articles/expressroute/howto-linkvnet-cli.md

@@ -176,6 +176,7 @@ az network vpn-connection update --name ERConnection --resource-group ExpressRou
 FastPath support for virtual network peering is now in Public preview. Enrollment is only available through Azure PowerShell. See [FastPath preview features](expressroute-howto-linkvnet-arm.md#enroll-in-expressroute-fastpath-features-preview), for instructions on how to enroll.
 
 > [!NOTE] 
+> Any connections configured for FastPath in the target subscription will be enrolled in this preview. We do not advise enabling this preview in production subscriptions.
 > If you already have FastPath configured and want to enroll in the preview feature, you need to do the following:
 > 1. Enroll in the FastPath preview feature with the Azure PowerShell command above.
 > 1. Disable and then re-enable FastPath on the target connection.