name : modify-replication-subnet-group.rst **To modify a subnet group** The following ``modify-replication-subnet-group`` example changes the lists of subnets associated with a subnet group. :: aws dms modify-replication-subnet-group \ --replication-subnet-group-identifier my-subnet-group \ --subnet-id subnet-da327bf6 subnet-bac383e0 Output:: { "ReplicationSubnetGroup": { "ReplicationSubnetGroupIdentifier": "my-subnet-group", "ReplicationSubnetGroupDescription": "my subnet group", "VpcId": "vpc-136a4c6a", "SubnetGroupStatus": "Complete", "Subnets": [ { "SubnetIdentifier": "subnet-da327bf6", "SubnetAvailabilityZone": { "Name": "us-east-1a" }, "SubnetStatus": "Active" }, { "SubnetIdentifier": "subnet-bac383e0", "SubnetAvailabilityZone": { "Name": "us-east-1c" }, "SubnetStatus": "Active" } ] } } For more information, see `Setting Up a Network for a Replication Instance <https://docs.aws.amazon.com/dms/latest/userguide/CHAP_ReplicationInstance.VPC.html>`__ in the *AWS Database Migration Service User Guide*.