add new Q&A

Author: halkazwini

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

@@ -1,11 +1,11 @@
 ---
 title: Azure Route Server frequently asked questions (FAQ)
-description: Find answers to frequently asked questions about Azure Route Server.
+description: In this article, you find answers to the most frequently asked questions about Azure Route Server.
 author: halkazwini
 ms.author: halkazwini
 ms.service: azure-route-server
 ms.topic: faq
-ms.date: 08/27/2024
+ms.date: 09/11/2024
 ---
 
 # Azure Route Server frequently asked questions (FAQ)
@@ -53,9 +53,13 @@ No. Azure Route Server only exchanges BGP routes with your network virtual appli
 
 Azure Route Server supports only Border Gateway (BGP) Protocol. Your network virtual appliance (NVA) must support multi-hop external BGP because you need to deploy the Route Server in a dedicated subnet in your virtual network. When you configure the BGP on your NVA, the ASN you choose must be different from the Route Server ASN.
 
-### Does Azure Route Server preserve the BGP AS Path of the route it receives?
+### Does Azure Route Server preserve the BGP AS path of the route it receives?
 
-Yes, Azure Route Server propagates the route with the BGP AS Path intact.
+Yes, Azure Route Server propagates the route with the BGP AS path intact.
+
+### If AS path prepend is configured on an NVA towards the route server, will the ExpressRoute circuit pass the AS path prepend information to on-premises?
+
+When ExpressRoute advertises routes to on-premises, it removes the private BGP ASN information. On-premises receives the prefix with [AS 12076](../expressroute/expressroute-routing.md#autonomous-system-numbers-asn)
 
 ### Does Azure Route Server preserve the BGP communities of the route it receives?
 
@@ -75,7 +79,7 @@ Yes. If a VNet peering is created between your hub VNet and spoke VNet, Azure Ro
 
 ### How is the 1000 route limit calculated on a BGP peering session between an NVA and Azure Route Server?
 
-Today, Route Server can accept a maximum of 1000 routes from a single BGP peer. When processing BGP route updates, this limit is calculated as the number of current routes learnt from a BGP peer plus the number of routes coming in the BGP route update. For example, if an NVA initially advertises 501 routes to Route Server and later re-advertises these 501 routes in a BGP route update, Route Server will calculate this as 1002 routes and tear down the BGP session. 
+Currently, Route Server can accept a maximum of 1000 routes from a single BGP peer. When processing BGP route updates, this limit is calculated as the number of current routes learnt from a BGP peer plus the number of routes coming in the BGP route update. For example, if an NVA initially advertises 501 routes to Route Server and later re-advertises these 501 routes in a BGP route update, the route server calculates this as 1002 routes and tear down the BGP session. 
 
 ### What Autonomous System Numbers (ASNs) can I use?
 
@@ -135,13 +139,6 @@ No, Azure Route Server provides transit only between ExpressRoute and Site-to-Si
 
 No. The spoke VNet can't have a Route Server if it's connected to the virtual WAN hub.
 
-
-### If Network Virtual Appliance has AS path prepend configured towards the route server, will the ExpressRoute circuit pass the AS path prepend information to the on-premises router?
-
-No. When ExpressRoute advertises routes to on-premises, it removes the private BGP ASN, and you will only see the ExpressRoute circuit ASN
-
-
-
 ## Limitations
 
 ### How many Azure Route Servers can I create in a virtual network?