The feature implemented in Epic MTV-3644 allows administrators to explicitly define the network interface used by the forklift-controller Pod for migration data transfer. Historically, this pod may have been restricted to the cluster's default network, which can lead to performance bottlenecks or network conflicts, especially in environments utilizing high-speed dedicated migration networks (e.g., separate VLANs or Multus-based networks).

Technical Writer Scope

The core objective is to guide the user on how to configure this network isolation for the central controller component. This involves:

1. Identifying the Configuration Point: Determine the exact field or parameter (likely within the MigrationController CR) used to specify the desired Transfer Network.

1. Multus Integration: If the configuration requires a specific Network Attachment Definition (NAD), the documentation must explain the prerequisites for the NAD's existence and reference (e.g., using Multus CNI).

1. Performance Context: Clearly explain why a user would perform this configuration (i.e., to separate management traffic from bulk data transfer traffic, ensuring better performance and reliability).

1. Verification: Document the steps required to confirm that the forklift-controller Pod is successfully using the specified, dedicated network for data operations.

The documentation should be integrated into the Installation/Operator Configuration and Network Customization chapters.

JTBD Statement:

"When I am running high-volume VM migrations, I want to explicitly assign the data transfer traffic to a dedicated, high-speed network interface so that I can prevent the migration traffic from congesting the cluster's default management network and ensure the migration data moves at the maximum possible throughput and reliability."

Documentation Task

The documentation task (MTV-3853) supports this job by addressing the primary sub-job:

"When I need to optimize network performance using a dedicated path, I need clear configuration documentation so that I can securely apply the Network Attachment Definition (NAD) to the Forklift Controller and verify the bulk transfer traffic is successfully using the isolated network."