Physical Express Route Link Migration

Bharaniraj Iyyamperumal 0 Reputation points
2024-05-30T20:36:24.02+00:00

Trying to migrate the Express route circuit from an 1G physical circuit to 10G physical circuit.

For migration, I'm trying to create a new circuit over the 10G link and create a new express route virtual network gateway.

However, I'm getting the error which states as below.

"The Virtual Network already has a gateway of this type or the existing gateway in the virtual network does not support coexistence"

Azure ExpressRoute
Azure ExpressRoute
An Azure service that provides private connections between Azure datacenters and infrastructure, either on premises or in a colocation environment.
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  1. KapilAnanth-MSFT 39,206 Reputation points Microsoft Employee
    2024-05-31T07:09:16.7966667+00:00

    @Bharaniraj Iyyamperumal ,

    Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

    I understand that you would like to deploy a new ExpressRoute Gateway in the GatewaySubnet already comprising of an ExpressRoute Gateway.

    This is not supported, you cannot deploy a 2nd ExpressRoute Gateway in GatewaySubnet.

    • Is there a specific reason why you are trying to do this?
    • Is it because you would like to upgrade the SKU?
      • In that case, consider "Resize-AzVirtualNetworkGateway" to upgrade the SKU
      • See : Gateway SKUs

    Also, note that you can connect a single ExpressRoute Gateway up to 4 ExpressRoute Connections.

    • So you can link the existing Gateway to the new Circuit
    • Migrate all the existing traffic to the new Circuit
    • And delete the old Circuit without having to deploy a new Gateway in the first place

    Cheers,

    Kapil

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