Technical data

116273-B Rev 00
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Chapter 2
Starting the ARN/DC
This chapter describes how to start the BayStack ARN/DC router, as follows:
Understanding the Startup Process
To operate, the ARN/DC requires two files: a software image and a configuration
file. Each time you start the ARN/DC, it completes a process to load these files.
•The software image contains a group of executable files that support the
protocols that the network requires. The ARN/DC uses the software image
called arn.exe. The process of obtaining and using this image is called
booting.
• To bridge and route traffic, the ARN/DC also needs a configuration file that is
tailored to the network. A configuration file is a binary system file that
contains hardware and software configuration data. The default configuration
file is named config.
Bay Networks ships the executable and default configuration files on a PCMCIA
flash card, but the ARN/DC can also obtain them over the network. Getting a file
over the network is called network booting, or netbooting. Getting a file from the
router file system, stored in flash memory, is local booting.
Topic Page
Understanding the startup process 2-1
Starting the ARN/DC for the first time 2-4
Using EZ-Install 2-5
Using Netboot, Directed Netboot, or Local Boot 2-6
Where to go next 2-16