About Federated Search for Splunk
You can run federated searches to search datasets outside of your local Splunk platform deployment. From your local search head, Federated Search for Splunk gives you a holistic view of datasets across multiple Splunk platform deployments.
Federated search is topology-agnostic, so it works despite the complexity of the Splunk platform deployments involved. You can run a federated search across any remote Splunk Cloud Platform or Splunk Enterprise deployment.
Do you use hybrid search? See Migrate from hybrid search to federated search.