Scenarios: Manage transit gateway networks with AWS Network Manager - Amazon VPC

Scenarios: Manage transit gateway networks with AWS Network Manager

The following are common use cases and scenarios for using Network Manager to manage your transit gateways.

AWS-only multi-Region and multi-account global network

In this scenario, your AWS network consists of three transit gateways. You own transit gateways tgw-1 and tgw-3. Transit gateway tgw-1 has a peering attachment with transit gateway tgw-2 that's in a different AWS account. Your entire network is within AWS, and does not consist of on-premises resources.


                AWS-only global network

For this scenario, do the following in Network Manager:

When you register tgw-1, the transit gateway peering attachment is included in the global network, and you can see information about tgw-2. However, any attachments for tgw-2 are not included in your global network. To see attachments for tgw-2, you must enable multi-account access.

  • This enables trusted access for Network Manager and allows for registering delegated administrators. For more information enabling trusted access and registering delegated administrators, see Multi-account .

  • Register the tgw-2 transit gatewaywith your global network. For more information, see Transit gateway registrations.

Single device with a single VPN connection

In the following scenario, your global network consists of a single site with a single device and link. The site is connected to your AWS network through a Site-to-Site VPN attachment on a transit gateway. Your transit gateway also has two VPC attachments.


                Single device and single VPN network

For this scenario, do the following in Network Manager:

Device with multiple VPN connections

In the following scenario, your on-premises network consists of a device with two Site-to-Site VPN connections to AWS. The device is associated with two customer gateways on two different transit gateways. Each VPN connection uses a separate link. To indicate which link applies to which VPN connection, you associate the customer gateway with both the device and the corresponding link.


                Multi-VPN network

For this scenario, do the following in Network Manager:

Multi-device and multi-link site

In the following scenario, your on-premises network consists of a site with two devices and two separate Site-to-Site VPN connections to AWS. For example, in a single building or campus, you might have multiple devices connected to AWS resources. Each device is associated with a customer gateway that's attached to your transit gateway.

Your AWS network is also connected to your on-premises network though an AWS Direct Connect gateway, which is an attachment on your transit gateway.


                Multi-device and multi-link network

For this scenario, do the following in Network Manager:

SD-WAN connecting to AWS

In the following example, your on-premises network consists of two sites. The Chicago site has two devices and the New York site has one device. Your AWS network consists of two transit gateways. All devices are associated with customer gateways (Site-to-Site VPN attachments) on both transit gateways.

Your on-premises network is managed using SD-WAN. The SD-WAN controller creates Site-to-Site VPN connections to the transit gateways, and creates the device, site, and link resources in Network Manager. This automates connectivity and enables you to get a full view of your network in Network Manager. The SD-WAN controller can also use Network Manager events and metrics to enhance its dashboard.


                SD-WAN connecting to AWS

For more information about Partners who can help you set up your Site-to-Site VPN connections, see AWS Network Manager.

Connection between devices

In the following scenario, your AWS network consists of a transit gateway with a Connect attachment to a VPC that contains a virtual appliance on an EC2 instance. A Transit Gateway Connect peer (GRE tunnel) is established between the transit gateway and the appliance. The appliance is connected to a physical device in your on-premises network through a connection.


                Connection between devices

For this scenario, do the following in Network Manager:

  • Create a global network. For more information, see Create a global network.

  • Register the transit gateway. For more information, see Register a transit gateway.

  • Create a site, device, and link for your on-premises network. For more information, see Sites, Devices, and Links.

  • Associate the device with the site and with the link. For more information, see Associate a device.

  • Create a device for the EC2 virtual device. For visualization in the Network Manager console, specify the AWS location of the device (for example, the Availability Zone). For more information, see Devices.

  • Create a connection between the on-premises device and the virtual device. For more information, see Connections.

  • Associate the Transit Gateway Connect peer with the on-premises device. For more information, see Transit Gateway Connect peer associations.