**To test a connection to an endpoint** The following ``test-connection`` example tests whether an endpoint can be accessed from a replication instance. :: aws dms test-connection \ --replication-instance-arn arn:aws:dms:us-east-1:123456789012:rep:T3OM7OUB5NM2LCVZF7JPGJRNUE \ --endpoint-arn arn:aws:dms:us-east-1:123456789012:endpoint:6GGI6YPWWGAYUVLKIB732KEVWA Output:: { "Connection": { "ReplicationInstanceArn": "arn:aws:dms:us-east-1:123456789012:rep:T3OM7OUB5NM2LCVZF7JPGJRNUE", "EndpointArn": "arn:aws:dms:us-east-1:123456789012:endpoint:6GGI6YPWWGAYUVLKIB732KEVWA", "Status": "testing", "EndpointIdentifier": "src-database-1", "ReplicationInstanceIdentifier": "my-repl-instance" } } For more information, see `Creating source and target endpoints <https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Endpoints.Creating.html>`__ in the *AWS Database Migration Service User Guide*.