Merge pull request #281463 from mbender-ms/avnm-udr-ado251137-2

virtual network manager - New Article - UDR Management - Scenario Multi-hub

Author: v-shils

articles/virtual-network-manager/TOC.yml

@@ -125,8 +125,10 @@
     items:
       - name: Create user-defined routes (UDRs)
         href: how-to-create-user-defined-route.md
-      - name: deploy hub and spoke topology with Azure Firewall
+      - name: Deploy hub and spoke topology with Azure Firewall
         href: how-to-deploy-hub-spoke-topology-with-azure-firewall.md
+      - name: Manage User-defined Routes (UDRs) across multiple hub-and-spoke topologies
+        href: how-to-manage-user-defined-routes-multiple-hub-spoke-topologies.md 
   - name: Common issues
     href: common-issues.md
 - name: Reference

articles/virtual-network-manager/concept-user-defined-route.md

@@ -115,6 +115,11 @@ When you create a rule collection, you define the local routing settings. The lo
 
 When you select **Direct routing within virtual network** or **Direct routing within subne**t, a UDR with a virtual network next hop is created for local traffic routing within the same virtual network or subnet. However, if the destination CIDR is fully contained within the source CIDR under these selections and direct routing is selected, a UDR specifying a network appliance as the next hop won't be set up.
 
+## Adding additional virtual networks
+
+When you add additional virtual networks to a network group, the routing configuration is automatically applied to the new virtual network. Your network manager automatically detects the new virtual network and applies the routing configuration to it. When you remove a virtual network from the network group, the applied routing configuration is automatically removed as well.
+
+
 ## Limitations of UDR management
 
 The following are the limitations of UDR management with Azure Virtual Network Manager: