AWS Application Discovery Service is no longer open to new customers. Alternatively, use AWS Transform which provides similar capabilities. For more information, see [AWS Application Discovery Service availability change](https://docs.aws.amazon.com/application-discovery/latest/userguide/application-discovery-service-availability-change.html).

# Using the Agentless Collector Network Data Collection module
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The Network Data Collection module makes it possible for you to discover dependencies among servers in your on-premises data center. This network data accelerates your migration planning by providing visibility into how applications communicate across servers.

The Network Data Collection module connects to the servers that the VMware vCenter module identifies, and analyzes source IP to destination IP/port traffic for those servers.

**Topics**
+ [Setting up the Network Data Collection module](network-data-module-setup.md)
+ [Network data collection attempts](collection-attempts.md)
+ [Server status in the Network Data Collection module](network-data-collection-status.md)