US Robotics USR2410 Bedienungsanleitung PDF herunterladen (Seite 48)

Chapter 7 -

System Inte gration

This Chapter will describe the entire system as a whole. The first section will describe how

individual mesh routers are used to construct the mesh network. The hardware configurations for

these devices were described in Chapter 3, and the different router configurations were described

in Chapter 5. The second section describes the necessary setup steps for a client, either wired or

wireless, to connect to the mesh network.

7.1

Mesh Ne twork Setup

By using the tree configuration for the mesh routers, the mesh network was constructed in a linear

topology to maximize the number of hops. The routers were laid out as follows. An Internet

gateway router was found at the start of the line. This was connected to the Internet, or to a

dedicated server for testing purposes. The test configuration is described in further detail in

Chapter 7. After the Internet gateway router there were three packet forwarding routers. At the

end of the line was the Client Gateway Router. These routers connected the clients to the mesh

network. As will be discussed in the next chapter, by varying the number of Packet forwarding

routers between the Internet gateway router and the Client gateway router, the number of hops a

packet took changed. This linear topology can be seen in the following figure.

7.2

Client Setup

There are a number of steps that need to be done on a client machine to allow it to connect to the

mesh network. Due to the scope of the project, automatic configuration was not implemented,

and manual commands needed to be entered. This section describes how a Linux client was

connected to the mesh network. The same settings can be specified on a client running a different

operating system, such as Microsoft Windows, but the commands to do this would be dependant

on the operating system being used.

7.2.1

Wireless Interface Configuration

The wireless device of a client machine needed to be configured with the proper settings to allow

it to connect to a Client Gateway Router. The commands that were run on a Linux machine,

configured with a wireless network device named eth1, can be found in Table 7-1. The first

command sets the mode, channel and network name for the wireless network. The second

command sets the proper addressing information for the network interface device. The third

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US Robotics USR2410 Bedienungsanleitung Seite 48