Create or upgrade Gateways for your Azure ExpressRoute

Joseph Thorwest Updated by Joseph Thorwest

This article provides the necessities and limitations regarding the creation or upgrade of ExpressRoute.

 

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.

When you create a virtual network gateway, you need to specify the gateway version (SKU) that you want to use. When you select a higher gateway version, more CPUs and network bandwidth are allocated to the gateway, and as a result, the gateway can support higher network throughput to the virtual network.

ExpressRoute virtual network gateways can use the following versions:

  • Standard
  • HighPerformance
  • UltraPerformance

You can only upgrade from Standard to HighPerformance gateway without downtime. If you want to downgrade or upgrade to UltraPerformance Gateway you have to re-create it which results in a downtime.

 

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