Merge pull request #306980 from siddomala/bowtie2ARS

Added more details for ExpressRoute MSEE hairpinning with Route Server

Author: prmerger-automator[bot]

articles/route-server/route-server-faq.md

@@ -121,7 +121,7 @@ No. By default, Azure Route Server doesn't propagate routes it receives from an
 
 ### Do NVA-advertised routes get propagated from one Route Server to another Route Server via ExpressRoute MSEE? 
 
-No. If **branch-to-branch** is enabled, then the NVA-advertised routes will be advertised to the ExpressRoute-connected on-premises. However, the NVA-advertised routes will be dropped by the second Route Server. To illustrate this, the diagram below shows the SDWAN on-premises advertising 10.3.0.0/16 to the SDWAN NVA. This route gets learned by the first Route Server, and so any workloads in VNet 1 (or peered to VNet 1) also learn this route. In addition, the ExpressRoute-connected on-premises learns the 10.3.0.0/16 route if **branch-to-branch** is enabled. However, the second Route Server (in VNet 2) does not learn the 10.3.0.0/16 route, and so this route will not be learned by any workloads in VNet 2.  
+No. If **branch-to-branch** is enabled, then the NVA-advertised routes will be advertised to the ExpressRoute-connected on-premises. However, the NVA-advertised routes will be dropped by the second Route Server. To illustrate this, the diagram below shows the SDWAN on-premises advertising 10.3.0.0/16 to the SDWAN NVA. This route gets learned by the first Route Server, and so any workloads in VNet 1 (or peered to VNet 1) also learn this route. In addition, the ExpressRoute-connected on-premises learns the 10.3.0.0/16 route if **branch-to-branch** is enabled. However, the second Route Server (in VNet 2) does not learn the 10.3.0.0/16 route, and so this route will not be learned by any workloads in VNet 2. As a result, the 10.3.0.0/16 on-premises network will be unreachable from any workloads in VNet 2 and peered to VNet 2.
 
 :::image type="content" source="./media/faq/route-server-msee-hairpin.png" alt-text="Diagram showing NVA-advertised route not being learned by second Route Server via ExpressRoute MSEE bow-tie.":::