Create a shared transit gateway route table attachment in an AWS Cloud WAN core network

The following steps guide you through creating a shared transit gateway attachment.

To create a shared transit gateway attachment

1. Access the Network Manager console at https://console.aws.amazon.com/networkmanager/home/.

2. Under Connectivity, choose Global Networks.

3. On the Global networks page, choose the global network ID.

4. In the navigation pane, under Shared by me, choose Attachments.

5. Choose Create attachment.

6. Enter a name to identify the attachment.

7. From the Core network dropdown list, choose the core network that is shared with you and that is where you want to create the VPC attachment.

8. From the Edge location dropdown list, choose the location where the attachment is located.

9. In the VPC attachment section, choose IPv6 support if the attachment supports IPv6.

10. From the Attachment type dropdown list, choose Transit gateway route table.

11. From the Transit gateway peering dropdown list in the Transit gateway route table attachment section, choose an existing peering to share.

12. (Optional) In the Tags section, add Key and Value pairs to help identify this resource. You can add multiple tags by choosing Add tag, or remove any tag by choosing Remove tag.

13. Choose Create attachment.

14. The Attachment page displays the following information about your shared attachments:

    • Attachment ID

    • Name

    • Edge location

    • Resource Type

    • Resource ID

    • State

    • Core network

    • Core network status

15. Choose Create attachment to create the new shared VPC or transit gateway attachment. See Attachments in AWS Cloud WAN .