Cloud Router connection to Azure ExpressRoute

When attached to a Cloud Router, your Azure ExpressRoute can share a routing domain with other cloud links and virtual circuits.

Prerequisites

Before you begin, ensure you have:

An active Azure subscription with appropriate permissions
A DynamicLink port with available bandwidth

Step 1: Create an ExpressRoute circuit in Azure

First, you need to create an ExpressRoute circuit in the Azure portal. This is required to obtain a service key, which you will then use to provision your connection in DynamicLink. Log in to the Azure portal and use the search bar at the top to find the ExpressRoute circuits page. Click Create and then complete the following fields: Configuration

Field	Description
Subscription	Your subscription is created at the account level and determines how you are billed.
Resource group	A resource group acts like a folder that organizes related resources. You can use it to perform actions on multiple resources at once—for example, applying permissions, duplicating configurations, or deleting the entire group. Each resource can belong to only one resource group, and each resource group is associated with a single subscription.
Resiliency	Select your resiliency type. For more information, see Design and architect Azure ExpressRoute for resiliency.
Region	Select the Azure region that you want to use. This region represents the availability zone or data center in which a resource is located. This region does not need to match your Zayo peering location. For example, you may want to choose the same region as other resources within your selected resource group.
Circuit name	Enter a name for the circuit.
Port type	Select Provider.
Peering location	Choose from the available on-ramp locations provided by Zayo.
Provider	Select Zayo DynamicLink.
Bandwidth	Select your desired capacity.
SKU	Choose the appropriate service tier.
Billing model	Select the correct billing option. • Metered: Usage-based billing. • Unlimited: Fixed monthly rate.

The SKU and billing model apply only to Microsoft’s billing structure. Zayo billing is separate.

Monitoring Here you can enable monitoring rules to receive alerts when certain events occur, such as a drop in BGP availability or high bandwidth utilization. For more information, see Monitor Azure ExpressRoute. Tags Here you can add tags as name/value pairs. These can help you organize and sort resources across groups. For more information, see Use tags to organize your Azure resources and management hierarchy. Review + create Confirm your selections and then click Create. It may take a few moments for your ExpressRoute resource to deploy. When it’s complete, click Go to resource.

From your resource list, select the ExpressRoute circuit you just created. From here, you find and copy the Service key:

Step 2: Create the Cloud Router connection in DynamicLink

Once you have your ExpressRoute service key from Azure, return to the DynamicLink portal. Navigate to Build Your Network > Ports in the DynamicLink portal. Under Connections, click the Cloud Router vertical tab. Select Cloud Connection and then Azure:

Complete the following fields:

Field	Description
Connection Type	At this time, we only support ExpressRoute connections.
Service Key	Enter the service key you copied from the Azure portal.
BW	This is automatically populated with the bandwidth you selected when creating your ExpressRoute circuit.
Peering Location	This is automatically populated with the peering location you selected when creating your ExpressRoute circuit.
Connection Type	Select the peering type you want to use: • Azure Private Peering: For private virtual networks and Azure services. • Microsoft Peering: For accessing Microsoft services like Office 365 and Dynamics 365.
VLAN	Enter a VLAN that is unique to this circuit. You will use this when configuring peering in the Azure portal.
Cloud Router IP Address	The IP address that the Cloud Router will use for BGP peering with Azure. This is typically the customer-side IP address in a `/30` subnet. When creating your ExpressRoute peering, you’ll specify both the Azure-side and customer-side IP addresses for the BGP session.

You can configure both peering types if your use case requires access to both private Azure resources and Microsoft services.

Enter a name for the connection and then click Add.

Step 3: Set up peering in Azure

Return to the Azure portal and open your ExpressRoute circuit. From here you can finish setting up peering. See Create and modify peering for an ExpressRoute circuit using the Azure portal.

After setting up peering, statuses typically progress from Not Provisioned to Provisioned once Azure completes provisioning (usually a few minutes).

Step 4: Verify in DynamicLink

Return to the Cloud Routers page and verify your connection appears as Available.

Next steps (routing)

Next, you will need to set up BGP and configure your Cloud Router ASN and peerings.

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Cloud Router connection to Azure ExpressRoute

Prerequisites

Step 1: Create an ExpressRoute circuit in Azure

Step 2: Create the Cloud Router connection in DynamicLink

Step 3: Set up peering in Azure

Step 4: Verify in DynamicLink

Next steps (routing)

​Prerequisites

​Step 1: Create an ExpressRoute circuit in Azure

​Step 2: Create the Cloud Router connection in DynamicLink

​Step 3: Set up peering in Azure

​Step 4: Verify in DynamicLink

​Next steps (routing)

Prerequisites

Step 1: Create an ExpressRoute circuit in Azure

Step 2: Create the Cloud Router connection in DynamicLink

Step 3: Set up peering in Azure

Step 4: Verify in DynamicLink

Next steps (routing)