Merge pull request #97980 from cherylmc/fastpath

FastPath

Author: American-Dipper

articles/expressroute/TOC.yml

@@ -26,7 +26,7 @@
       href: expressroute-locations-providers.md
     - name: Locations by provider
       href: expressroute-locations.md
-  - name: Virtual network gateway and FastPath
+  - name: About virtual network gateways
     href: expressroute-about-virtual-network-gateways.md
   - name: Prerequisites
     href: expressroute-prerequisites.md
@@ -40,6 +40,8 @@
     href: expressroute-qos.md
   - name: About moving circuits from classic to Resource Manager
     href: expressroute-move.md
+  - name: About ExpressRoute FastPath
+    href: about-fastpath.md
   - name: About ExpressRoute Direct
     href: expressroute-erdirect-about.md
   - name: About ExpressRoute Global Reach

articles/expressroute/about-fastpath.md

@@ -0,0 +1,46 @@
+---
+title: About Azure ExpressRoute FastPath
+description: Learn about Azure ExpressRoute FastPath to send network traffic by bypassing the gateway
+services: expressroute
+author: cherylmc
+
+ms.service: expressroute
+ms.topic: conceptual
+ms.date: 12/05/2019
+ms.author: cherylmc
+
+---
+# About ExpressRoute FastPath
+
+ExpressRoute virtual network gateway is designed to exchange network routes and route network traffic. FastPath is designed to improve the data path performance between your on-premises network and your virtual network. When enabled, FastPath sends network traffic directly to virtual machines in the virtual network, bypassing the gateway.
+
+## Requirements
+
+### Circuits
+
+FastPath is available on all ExpressRoute circuits.
+
+### Gateways
+
+FastPath still requires a virtual network gateway to be created to exchange routes between virtual network and on-premises network. For more information about virtual network gateways and ExpressRoute, see [ExpressRoute virtual network gateways](expressroute-about-virtual-network-gateways.md).
+
+The virtual network gateway must be either:
+
+* Ultra Performance
+* ErGw3AZ
+
+## Supported features
+
+While FastPath supports most configurations, it does not support the following features:
+
+* UDR on the gateway subnet: If you apply a UDR to the gateway subnet of your virtual network, the network traffic from your on-premises network will continue to be sent to the virtual network gateway.
+
+* VNet Peering: If you have other virtual networks peered with the one that is connected to ExpressRoute, the network traffic from your on-premises network to the other virtual networks (i.e. the so-called "Spoke" VNets) will continue to be sent to the virtual network gateway. The workaround is to connect all the virtual networks to the ExpressRoute circuit directly.
+
+* Basic Load Balancer: If you deploy a Basic internal load balancer in your virtual network or the Azure PaaS service you deploy in your virtual network uses a Basic internal load balancer, the network traffic from your on-premises network to the virtual IPs hosted on the Basic load balancer will be sent to the virtual network gateway. The solution is to upgrade the Basic load balancer to a [Standard load balancer](https://docs.microsoft.com/azure/load-balancer/load-balancer-overview).
+
+* Private Link: If you connect to a [private endpoint](../private-link/private-link-overview.md) in your virtual network from your on-premises network, the connection will go through the virtual network gateway.
+ 
+## Next steps
+
+To enable FastPath, see [Link a virtual network to ExpressRoute](expressroute-howto-linkvnet-arm.md#configure-expressroute-fastpath).

articles/expressroute/expressroute-about-virtual-network-gateways.md

@@ -8,11 +8,11 @@ ms.service: expressroute
 ms.topic: conceptual
 ms.date: 10/14/2019
 ms.author: mialdrid
-ms.custom: seodec18
 
 ---
-# ExpressRoute virtual network gateway and FastPath
-To connect your Azure virtual network and your on-premises network via ExpressRoute, you must create a virtual network gateway first. A virtual network gateway serves two purposes: exchange IP routes between the networks and route network traffic. This article explains gateway types, gateway SKUs and estimated performance by SKU. This article also explains ExpressRoute [FastPath](#fastpath), a feature that enables the network traffic from your on-premises network to bypass the virtual network gateway to improve performance.
+# About ExpressRoute virtual network gateways
+
+To connect your Azure virtual network and your on-premises network via ExpressRoute, you must create a virtual network gateway first. A virtual network gateway serves two purposes: exchange IP routes between the networks and route network traffic. This article explains gateway types, gateway SKUs, and estimated performance by SKU. This article also explains ExpressRoute [FastPath](#fastpath), a feature that enables the network traffic from your on-premises network to bypass the virtual network gateway to improve performance.
 
 ## Gateway types
 
@@ -74,16 +74,11 @@ Zone-redundant gateways use specific new gateway SKUs for ExpressRoute gateway.
 The new gateway SKUs also support other deployment options to best match your needs. When creating a virtual network gateway using the new gateway SKUs, you also have the option to deploy the gateway in a specific zone. This is referred to as a zonal gateway. When you deploy a zonal gateway, all the instances of the gateway are deployed in the same Availability Zone.
 
 ## <a name="fastpath"></a>FastPath
-ExpressRoute virtual network gateway is designed to exchange network routes and route network traffic. FastPath is designed to improve the data path performance between your on-premises network and your virtual network. When enabled, FastPath sends network traffic directly to virtual machines in the virtual network, bypassing the gateway. 
 
-FastPath is available on all ExpressRoute circuits. It still requires a virtual network gateway to be created to exchange routes between virtual network and on-premises network. The virtual network gateway must be either Ultra Performance or ErGw3AZ.
+ExpressRoute virtual network gateway is designed to exchange network routes and route network traffic. FastPath is designed to improve the data path performance between your on-premises network and your virtual network. When enabled, FastPath sends network traffic directly to virtual machines in the virtual network, bypassing the gateway.
+
+For more information about FastPath, including limitations and requirements, see [About FastPath](about-fastpath.md).
 
-FastPath doesn't support the following features:
-* UDR on Gateway subnet: if you apply a UDR to the Gateway subnet of your virtual network the network traffic from your on-premises network will continue to be sent to the virtual network gateway.
-* VNet Peering: if you have other virtual networks peered with the one that is connected to ExpressRoute the network traffic from your on-premises network to the other virtual networks (i.e. the so-called "Spoke" VNets) will continue to be sent to the virtual network gateway. The workaround is to connect all the virtual networks to the ExpressRoute circuit directly.
-* Basic Load Balancer: if you deploy a Basic internal load balancer in your virtual network or the Azure PaaS service you deploy in your virtual network uses a Basic internal load balancer, the network traffic from your on-premises network to the virtual IPs hosted on the Basic load balancer will be sent to the virtual network gateway. The solution is to upgrade the Basic load balancer to a [Standard load balancer](https://docs.microsoft.com/azure/load-balancer/load-balancer-overview).
-* Private Link: if you connect to a [private endpoint](../private-link/private-link-overview.md) in your virtual network from your on-premises network the connection will go through the virtual network gateway.
- 
 ## <a name="resources"></a>REST APIs and PowerShell cmdlets
 For additional technical resources and specific syntax requirements when using REST APIs and PowerShell cmdlets for virtual network gateway configurations, see the following pages:
 
@@ -93,10 +88,11 @@ For additional technical resources and specific syntax requirements when using R
 | [REST API](https://msdn.microsoft.com/library/jj154113.aspx) |[REST API](https://msdn.microsoft.com/library/mt163859.aspx) |
 
 ## Next steps
-See [ExpressRoute Overview](expressroute-introduction.md) for more information about available connection configurations.
 
-See [Create a virtual network gateway for ExpressRoute](expressroute-howto-add-gateway-resource-manager.md) for more information about creating ExpressRoute gateways.
+For more information about available connection configurations, see [ExpressRoute Overview](expressroute-introduction.md).
+
+For more information about creating ExpressRoute gateways, see [Create a virtual network gateway for ExpressRoute](expressroute-howto-add-gateway-resource-manager.md).
 
-See [Create a zone-redundant virtual network gateway](../../articles/vpn-gateway/create-zone-redundant-vnet-gateway.md) for more information about configuring zone-redundant gateways.
+For more information about configuring zone-redundant gateways, see [Create a zone-redundant virtual network gateway](../../articles/vpn-gateway/create-zone-redundant-vnet-gateway.md).
 
-See [Link virtual network to ExpressRoute](expressroute-howto-linkvnet-arm.md) for more information about how to enable FastPath. 
+For more information about FastPath, see [About FastPath](about-fastpath.md).

includes/expressroute-table-aggtput-include.md

@@ -5,16 +5,16 @@ services: expressroute
 author: cherylmc
 ms.service: expressroute
 ms.topic: include
-ms.date: 11/09/2018
+ms.date: 12/05/2019
 ms.author: cherylmc
 ms.custom: include file
 ---
 
 
-|  | **Megabits per second** | **Packets per second** | **Connections per second** | **VPN Gateway and ExpressRoute coexist** |
-| --- | --- | --- | --- | --- |
-| **Basic SKU (deprecated)** |500 | Unknown | Unknown |No |
-| **Standard SKU/ErGw1AZ** |1,000 | 100,000 | 7,000 | Yes |
-| **High Performance SKU/ErGw2AZ** |2,000 | 250,000 | 14,000 | Yes |
-| **Ultra Performance SKU/ErGw3AZ** |10,000 | 1,000,000 | 28,000 | Yes |
+|  | **Megabits per second** | **Packets per second** | **Connections per second** | **VPN Gateway and ExpressRoute coexist** | **FastPath** |
+| --- | --- | --- | --- | --- | --- |
+| **Basic SKU (deprecated)** |500 | Unknown | Unknown |No | No |
+| **Standard SKU/ErGw1AZ** |1,000 | 100,000 | 7,000 | Yes | No |
+| **High Performance SKU/ErGw2AZ** |2,000 | 250,000 | 14,000 | Yes | No |
+| **Ultra Performance SKU/ErGw3AZ** |10,000 | 1,000,000 | 28,000 | Yes | Yes |