removed public peering

Author: duongau

articles/backup/microsoft-azure-backup-server-protection-v3-ur1.md

@@ -64,32 +64,16 @@ The following sections details the protection support matrix for MABS:
 
 ## Azure ExpressRoute support
 
-You can back up your data over Azure ExpressRoute with public peering (available for old circuits) and Microsoft peering. Backup over private peering isn't supported.
+You can back up your data over Azure ExpressRoute with Microsoft peering. Backup over private peering isn't supported.
 
-With public peering: Ensure access to the following domains/addresses:
-
-* URLs
-  * `www.msftncsi.com`
-  * `*.Microsoft.com`
-  * `*.WindowsAzure.com`
-  * `*.microsoftonline.com`
-  * `*.windows.net`
-  * `www.msftconnecttest.com`
-* IP addresses
-  * 20.190.128.0/18
-  * 40.126.0.0/18
-
-With Microsoft peering, select the following services/regions and relevant community values:
+Select the following services/regions and relevant community values:
 
 * Microsoft Entra ID (12076:5060)
 * Microsoft Azure Region (according to the location of your Recovery Services vault)
 * Azure Storage (according to the location of your Recovery Services vault)
 
 For more information, see the [ExpressRoute routing requirements](../expressroute/expressroute-routing.md).
 
->[!NOTE]
->Public Peering is deprecated for new circuits.
-
 ## Operating systems and applications at end of support
 
 Support for the following operating systems and applications in MABS are deprecated. We recommended you to upgrade them to continue protecting your data.