# Global networks in AWS Global Networks for Transit Gateways
Global networks

A global network in AWS Global Networks for Transit Gateways is a container for your network objects. When you create a global network, you create only the framework of the global network itself. You'll then further define this network by adding network objects to it, such as 
+ transit gateways.
+ sites, devices, and links, and then creating connections using links between those sites and devices. 
+ customer gateway associations.
+ Connect peer associations.

**Note**  
When creating a global network, you're prompted to create an associated core network. A core network is a feature of AWS Cloud WAN and is not needed if you're not using this feature. While creating a global network, you're prompted whether or not to create a core network. Clear the option to create the core network. If you decide later on that you want to create a core network for this global network you can. For the steps to create a core network, see [What is AWS Cloud WAN](https://docs.aws.amazon.com/network-manager/latest/cloudwan/what-is-cloudwan.html) in the *AWS Cloud WAN User Guide.* 

You can create, view, update, and delete a global network using either the AWS Network Manager console or by using the CLI.

**Topics**
+ [Create a global network](global-networks-creating.md)
+ [View a global network](global-networks-viewing.md)
+ [Update a global network](global-networks-updating.md)
+ [Delete a global network](global-networks-deleting.md)

# Create a global network using AWS Network Manager
Create a global network

Create a global network.

**To create a global network**

1. Open the Network Manager console at [https://console.aws.amazon.com/networkmanager/home/](https://console.aws.amazon.com/networkmanager/home).

1. Under **Connectivity**, choose **Global Networks**.

1. 

   Choose **Create global network**.

1. Enter a **Name** and **Description** for your global network.

1. (Optional) In Additional settings, add **Key** and **Value** tags that further help identify an Network Manager resource. To add multiple tags, choose **Add tag** for each tag you want to add.

1. Choose **Next**.

1. To create a AWS Transit Gateway network only, clear the **Add core network in your global network** check box on the **Create global network - *optional*** page, and then choose **Next**.
**Note**  
Core networks are only used with AWS Cloud WAN. If you're creating global network for AWS Cloud WAN and want to create a core network, see [Create a core network policy](https://docs.aws.amazon.com/network-manager/latest/cloudwan/cloudwan-create-policy-console.html) in the *AWS Cloud WAN User Guide*.

1. Review the information for the global network you want to create, and then choose **Create global network**.

**To create a global network using the AWS CLI**  
Use the [create-global-network](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/create-global-network.html) command.

# View a global network using AWS Global Networks for Transit Gateways
View a global network

View the details of your global network and information about the network objects in your global network.

**To view your global network information**

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

1. Under **Connectivity**, choose **Global Networks**.

1. On the **Global networks** page, choose the global network ID.

1. The **Overview** page displays an inventory of the objects in both your core network and transit gateway network. To view details about the global network resource (such as its ARN), choose **Details**. For more information about the other pages on the dashboard, see [Access transit gateway network dashboards using AWS Network Manager](nm-monitoring-console.md).

**To view global network details using the AWS CLI**  
Use the [describe-global-networks](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/describe-global-networks.html) command.

# Update a global network using AWS Network Manager
Update a global network

Update a global network by modifying the description or tags. 

**To update your global network**

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

1. Under **Connectivity**, choose **Global Networks**.

1. On the **Global networks** page, choose the global network ID.

1. Choose **Edit**.

1. For **Description**, enter a new description for the global network.

1. For **Tags**, choose **Remove tag** to remove an existing tag, or choose **Add tag** to add a new tag.

1. Choose **Edit global network**.

**To update a global network using the AWS CLI**  
Use the [update-global-network](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/update-global-network.html) command to update the description. Use the [tag-resource](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/tag-resource.html) and [untag-resource](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/untag-resource.html) commands to update the tags.

# Delete a global network using AWS Network Manager
Delete a global network

Delete a global network framework. You cannot delete a global network if there are any network objects in the global network, including transit gateways, links, devices, and sites. You must first deregister or delete the network objects.

**To delete your global network**

1. Open the Network Manager console at [https://console.aws.amazon.com/networkmanager/home/](https://console.aws.amazon.com/networkmanager/home).

1. Under **Connectivity**, choose **Global Networks**.

1. In the navigation pane, choose **Global networks**.

1. Choose your global network and choose **Delete**.

1. In the confirmation dialog box, choose **Delete**.

**To delete a global network using the AWS CLI**  
Use the [delete-global-network](https://docs.aws.amazon.com/cli/latest/reference/networkmanager/delete-global-network.html) command.