AWS Transit Gateway (TGW) is a service that enables you to connect your Amazon
Virtual Private Clouds (VPCs) and your on-premises networks to a single gateway.
Transit gateway is the networking backbone that handles the routing between
AMS account networks and external networks. For information about Transit
Gateway, see AWS Transit Gateway
Provide the following input to create this resource:
Transit Gateway ASN number*: Provide the private Autonomous System Number (ASN) for your transit gateway. This should be the ASN for the AWS side of a Border Gateway Protocol (BGP) session. The range is 64512 to 65534 for 16-bit ASNs.