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

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Prerequisites

Before you begin, ensure you have:

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Step 1: Create a partner interconnect VLAN attachment in Google Cloud

In the search field at the top of Google Cloud Console home page, enter “Interconnect” and select the product page. Go to the Interconnect page and click Create VLAN attachments. There are two types of partner interconnect VLAN attachments:
  • Encrypted: HA VPN over your connection. See HA VPN over Cloud Interconnect overview. Note that while this is supported on the Zayo NaaS platform, you will need to deploy and configure IPsec on-prem.
  • Unencrypted: Unencrypted connections are still private and secure, but do not use VPN tunneling and do not require IPsec.
For instructions on provisioning a VLAN attachment, see Create VLAN attachments. When creating your VLAN attachment, note the following:
FieldComments
MTUSupport for up to 9000 MTU
IP stack typeSelect IPv4 (single-stack) (we do not support IPv6 at this time)
After you provision your interconnect, you will be provided one pairing key for each VLAN attachment. Copy this key as you will need to provide it when setting up the connection in DynamicLink. screenshot Once you have your pairing key from Google Cloud, 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 Google: Screenshot Complete the following fields:
FieldDescription
Pairing key 1      
Pairing key 2		Enter the pairing keys you copied from Google Cloud console after creating your VLAN attachment.
RegionThis is automatically populated with the region you selected while provisioning the VLAN attachment.
BWDesired bandwidth for the Google Cloud Interconnect link.
Enter a name for the connection and then click Add.

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Step 3: Activate the connection in Google Cloud

Return to the Google Cloud Console and activate the connection. See Activating connections.
After activation, statuses typically progress from Pending to Available once Google Cloud completes provisioning (usually a few minutes).
Return to the Cloud Routers page and verify your connection appears as Available.

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Next steps (routing)

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