Comtech EF Data FX Series Administrator Guide - Manual (Page 74)

Comtech EF Data / Stampede
FX Series Administration Guide - Version 6.1.1 74
Chapter: FX Series Network Settings
Section: FX Series Multicator Overview
MN-FXSERIESADM6 Rev 5
4.7.1 Theory of Operation
A powerful new content distribution system can now be set up with the separately licensed “Multicator”
feature. This feature allows a user to upload a file to an FX Series device via FTP. The file is then reliably
multicast to a group of receivers. The receivers then upload the content to a local FTP server. The
Multicator employs the “Content Distribution Control Protocol” (CDCP) to ensure that only one multicast
transmission is in progress.
Figure 4-13 FX Series Multicator Theory of Operation
Sequence of Events
1. Files are deposited on the Transmitter (Sender) using a standard FTP client (Site D).
2. The Transmitter then notifies the Controller that it has data to send and is granted permission
to reliably multicast the data across the WAN.
3. Under the direction of the Controller, the Transmitter establishes a reliable multicast
connection to the Receivers.
4. The Transmitter sends the files to each of the Receivers (Sites A, B, C, and E).
5. Each Receiver sends an acknowledgment of receipt to the Controller.
6. Each receiver uses FTP to send the files to the respective server.