Data routing and throttling - Application Migration Service
Use private IP for data replicationThrottle bandwidth

Data routing and throttling

AWS Application Migration Service allows you to control how data is routed from your source servers to the replication servers on AWS through the Data routing and throttling settings.

Data routing and throttling options for private IP, public IP, and network bandwidth.

By default, data is sent from the source servers to the replication servers over the public internet, using the public IP that was automatically assigned to the replication servers. Transferred data is always encrypted in transit.

Note

The Data routing and throttling view differs slightly between the replication template view and the individual source server replication settings view, but the instructions apply to both views.

Use private IP for data replication

Choose the Use private IP option if you want to route the replicated data from your source servers to the staging area subnet through a private network with a VPN, AWS Direct Connect, VPC peering, or another type of existing private connection.

Choose Do not use private IP if you do not want to route the replicated data through a private network.

Radio button options for using or not using private IP for data replication.
Important

Data replication will not work unless you have already set up the VPN, AWS Direct Connect, or VPC peering in the AWS Console.

Note

  • If you selected the Default subnet, it is highly unlikely that the private IP is used for that subnet. Ensure that Private IP (VPN, AWS Direct Connect, or VPC peering) is used for your chosen subnet if you wish to use this option.

  • You can safely switch between a private connection and a public connection for individual server settings choosing the Use private IP or Do not use private IP option, even after data replication has begun. This switch will only cause a short pause in replication, and will not have any long-term effect on the replication.

  • Choosing the Use private IP option will not create a new private connection.

You should use this option if you want to:

  • Allocate a dedicated bandwidth for replication

  • Use another level of encryption

  • Add another layer of security by transferring the replicated data from one private IP address (source) to another private IP address (on AWS)

The following diagram illustrates the high-level interaction between the different replication system components when using private IP or VPC endpoint.

AWS MGN network architecture diagram featuring a private link/VPC

Create public IP

When the Use private IP option is chosen, you will have the option to create a public IP. Public IPs are used by default. Choose Create public IP if you want to create a public IP. Choose Do not create a public IP if you do not want to create a public IP.

Dropdown menu showing options to create or not create a public IP address.

Throttle bandwidth

You can control the amount of network bandwidth used for data replication per server. By default, AWS Application Migration Service will use all available network bandwidth utilizing five concurrent connections.

Choose Throttle bandwidth if you want to control the transfer rate of data sent from your source servers to the Replication Servers over TCP Port 1500. Otherwise, choose Do not throttle bandwidth.

Network bandwidth throttling options with radio buttons for throttle and do not throttle.

If you chose to throttle bandwidth, the Throttle network bandwidth (per server, in Mbps) box will appear. Enter your desired bandwidth in Mbps.