# AWS Network Manager
<a name="networking-manager"></a>

AWS Network Manager is a service that enables you to visualize your transit gateway (TGW) networks at no additional cost to AMS. It provides centralized network monitoring on both AWS resources and on on-premises networks, a single global view of their private network in a topology diagram and in a geographical map, and utilization metrics, such as bytes in/out, packets in/out, packets dropped, and alerts for changes in the topology, routing, and up/down connection status. For information, see [AWS Network Manager](https://aws.amazon.com/transit-gateway/network-manager/).

Use one of the following roles to access this resource:
+ AWSManagedServicesCaseRole
+ AWSManagedServicesReadOnlyRole
+ AWSManagedServicesChangeManagementRole