Version: 4.2

System components

The DD1000i consists of the following components:

DD1000i - The physical device that is connected between the two networks that should exchange information.
Upstream DD Engine - An integrated proxy server running DD Engine firmware. It manages data transfer and protocol services on the source network. It also hosts the Upstream DD Manager.
Upstream DD Manager - A web-based administration tool, allowing an administrator to manage the Upstream DD Engine.
Downstream DD Engine - An integrated proxy server running DD Engine firmware. It manages data transfer and protocol services on the destination network. It also hosts the Downstream DD Manager.
Downstream DD Manager - A web-based administration tool, allowing an administrator to manage the Downstream DD Engine.
Services - Enables protocol specific communication between networks over the Data Diode. A DD Engine can host several services. See Services for further information about available protocols.

Information flow

When a message is sent from one network to another where both networks are connected to a DD1000i, the Upstream DD Engine validates the format of the data. If the format is approved, the data is transferred over the Data Diode to the Downstream DD Engine where the message is reconstructed and sent to the intended receiver on the other network.

The following activities are performed:

Step 1Step 2Step 3Step 4Step 5Step 6Step 7Step 8Step 9

Data is sent to the DATA IN port on the DD1000i.
The data packages are collected in the Upstream DD Engine.
The entire message is restored.
The message is divided according to the loaded Service.
The content is structured to fit the internal service.
The content is transferred uni-directionally, through the Data Diode, to the Downstream DD Engine.
The entire message is restored.
The message is divided into data packages.
The data packages are sent on the DATA OUT port to the intended receiver.

Information flow​

Information flow