Modifying The Startup Configuration; Default Boot Configuration; Automatically Downloading A Configuration File - Cisco WS-C3550-12G Software Configuration Manual
Multilayer switch
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Modifying the Startup Configuration
Modifying the Startup Configuration
This section describes how to modify the switch startup configuration. It contains this configuration
information:
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Default Boot Configuration
Table 4-3
Table 4-3
Default Boot Configuration
Feature
Operating system software image
Configuration file
Automatically Downloading a Configuration File
You can automatically download a configuration file to your switch by using the DHCP-based
autoconfiguration feature. For more information, see the
Autoconfiguration" section on page
Catalyst 3550 Multilayer Switch Software Configuration Guide
4-12
Default Boot Configuration, page 4-12
Automatically Downloading a Configuration File, page 4-12
Booting Manually, page 4-13
Booting a Specific Software Image, page 4-14
Controlling Environment Variables, page 4-15
shows the default boot configuration.
Default Setting
The switch attempts to automatically boot the system using information in the BOOT
environment variable. If the variable is not set, the switch attempts to load and
execute the first executable image it can by performing a recursive, depth-first search
throughout the Flash file system.
The IOS image is stored in a directory that has the same name as the image file
(excluding the .bin extension).
In a depth-first search of a directory, each encountered subdirectory is completely
searched before continuing the search in the original directory.
Configured switches use the config.text file stored on the system board in Flash
memory.
A new switch has no configuration file.
Chapter 4
Assigning the Switch IP Address and Default Gateway
"Understanding DHCP-Based
4-3.
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