US Robotics USR2410 Manual de usuario descargar pdf (Pagina 23)

the Linux kernel ever seeing them. The efficiency of the kernel module is higher than user-level

driver as the kernel does not have to process the packet before Click does. The configuration files

for the user-level driver cannot be used to define a kernel configuration, or the other way around.

The kernel module and user level configuration diagrams can be seen in Figure 2-7

Figure 2-7: Click Configuration Diagrams: Linux Module and User Level

2.11

Network Analysis Software

There was a number of network analysis programs used to debug the mesh network. These

included packet capture programs such as Ethereal and TCPdump, and a network utility called

Netcat.

2.11.1

Ethereal

Ethereal is a common network packet capture program used to monitor network traffic. It

provides a graphical user interface, and has features to analyze network data such as filtering

capabilities, and graphing of throughput and round trip time. It also has the ability to group packet

data based on the protocol of the packet.

2.11.2

TCPdump

TCPdump is a network packet capture program. It allows the capture of data coming into and out

of the mesh routers. Problems with network communication can easily be debugged with

TCPdump. This tool does not require a graphical user interface, and can be run on a remote

system.

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US Robotics USR2410 Manual de usuario Pagina 23