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Copy file name to clipboardExpand all lines: articles/expressroute/about-fastpath.md
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@@ -32,9 +32,9 @@ To configure FastPath, the virtual network gateway must be either:
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While FastPath supports most configurations, it doesn't support the following features:
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* 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](../load-balancer/load-balancer-overview.md).
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* 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 is sent to the virtual network gateway. The solution is to upgrade the Basic load balancer to a [Standard load balancer](../load-balancer/load-balancer-overview.md).
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* Private Link: If you connect to a [private endpoint](../private-link/private-link-overview.md) in your virtual network from your on-premises network, over a non-100Gbps ExpressRoute Direct circuit, the connection will go through the virtual network gateway. FastPath Connectivity to a private endpoint over a 100Gb ExpressRoute Direct circuit is supported. For more information, see [enable FastPath and Private Link for 100 Gbps ExpressRoute Direct](expressroute-howto-linkvnet-arm.md#fastpath-and-private-link-for-100-gbps-expressroute-direct).
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* Private Link: If you connect to a [private endpoint](../private-link/private-link-overview.md) in your virtual network from your on-premises network, over a non-100Gbps ExpressRoute Direct circuit, the connection goes through the virtual network gateway. FastPath Connectivity to a private endpoint over a 100Gb ExpressRoute Direct circuit is supported. For more information, see [enable FastPath and Private Link for 100 Gbps ExpressRoute Direct](expressroute-howto-linkvnet-arm.md#fastpath-and-private-link-for-100-gbps-expressroute-direct).
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### IP address limits
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> [!NOTE]
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> * ExpressRoute Direct has a cumulative limit at the port level.
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> * Traffic will flow through the ExpressRoute gateway when these limits are reached.
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> * Traffic flows through the ExpressRoute gateway when these limits are reached.
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## Public preview
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The following FastPath features are in Public preview:
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### Virtual network (VNet) Peering
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FastPath will send traffic directly to any VM deployed in a virtual network peered to the one connected to ExpressRoute, bypassing the ExpressRoute virtual network gateway. This feature is available for both IPv4 and IPv6 connectivity.
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FastPath sends traffic directly to any VM deployed in a virtual network peered to the one connected to ExpressRoute, bypassing the ExpressRoute virtual network gateway. This feature is available for both IPv4 and IPv6 connectivity.
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**FastPath support for VNet peering is only available for ExpressRoute Direct connections.**
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### User Defined Routes (UDRs)
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FastPath will honor UDRs configured on the GatewaySubnet and send traffic directly to an Azure Firewall or third party NVA.
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FastPath honors UDRs configured on the GatewaySubnet and send traffic directly to an Azure Firewall or third party NVA.
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**FastPath support for UDRs is only available for ExpressRoute Direct connections**
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> [!NOTE]
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> * FastPath UDR connectivity is not supported for Azure Dedicated Host workloads.
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> * FastPath UDR connectivity is not supported for IPv6 workloads.
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To enroll in the Public preview, please send an email **[email protected]** with the following information:
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To enroll in the Public preview, send an email to**[email protected]** with the following information:
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- Azure subscription ID
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- Virtual Network(s) Azure Resource ID(s)
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- ExpressRoute Circuit(s) Azure Resource ID(s)
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> [!NOTE]
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> Private Link pricing will not apply to traffic sent over ExpressRoute FastPath during Public preview. For more information about pricing, check out the [Private Link pricing page](https://azure.microsoft.com/pricing/details/private-link/).
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## Limited General Availability (GA)
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FastPath Private Endpoint/Private Link support for 100Gbps ExpressRoute Direct connections is available for limited scenarios. To review the supported scenarios and enroll in the limited GA offering, send an email to **[email protected]** with the following information:
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