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NETWORK ARCHITECTURE

We now describe the topology of our remote observing network, the primary protocols involved, and our experience with high-speed satellite networking for a remote observing application.

**Figure 1:** A schematic of the high-speed ACTS network used for the Keck remote observing project. Note that the entire ground-based network now consists of optical fiber.
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Physical layer
Network protocol layer
User protocol layer

Patrick Shopbell
8/11/1997