Once a hostname has been determined, the switch then issues a TFTP request for a file named "<hostname>.cfg" file, where <hostname> is the first 32 characters of the switch's hostname.

If the switch is unable to map its IP address to a hostname, Auto Config sends TFTP requests for the default configuration file "host.cfg."

Table 9-1 summarizes the config files which may be downloaded, and the order in which they are sought.

Table 9-1. Configuration File Possibilities

Order Sought

File Name

Description

Final File Sought

1

<bootfile>.cfg

Host-specific config file, ending in a *.cfg file extension

Yes

2

fp-net.cfg

Default network config file

No

3

<hostname>.cfg

Host-specific config file, associated with hostname

Yes

4

host.cfg

Default config file

Yes

 

 

 

 

Table 9-2 displays the determining factors for issuing unicast or broadcast TFTP requests.

Table 9-2. TFTP Request Types

TFTP Server Address Available Host-specific Router Config TFTP Request Method

Filename Available

Yes

Yes

Issue a unicast request for the host-specific router

 

 

config file to the TFTP server

Yes

No

Issue a unicast request for a default network or router

 

 

config file to the TFTP server

No

Yes

Issue a broadcast request for the host-specific router

 

 

config file to any available TFTP server

No

No

Issue a broadcast request for the default network or

 

 

router config file to any available TFTP server

 

 

 

Monitoring and Completing the Auto Config Process

When a switch begins bootup and there is no saved configuration, a message appears on the console informing the user that the Auto Config procedure is starting. A message also appears when Auto Config completes. The user is reminded with a message indicating that configuration must be saved in order to avoid performing Auto Config on the next reboot.

When Auto Config has successfully completed, an administrator can execute a show running-configcommand to validate the contents of configuration.

Saving a Configuration

An administrator must explicitly save the downloaded configuration in non-volatile memory. This makes the configuration available for the next reboot. In the CLI, this is performed by issuing copy running- config startup-configcommand and should be done after validating the contents of saved configuration.

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Dell 6200 SERIES manual Monitoring and Completing the Auto Config Process, 164

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