342 Auto Image and Configuration UpdateIf the switches are to be assigned a static IP address included in a specifiedconfiguration file (.text) or by a DHCP server, the entries in the *.setup filethat assigns a specific configuration file and image to each switch has thefollowing format:MAC_Address Config_File Image_FileFor example:0180.c200.0010 switch-Y.text PC7000vR.5.4.1.stk1180.c200.0011 switch-Z.text PC7000vR.5.4.1.stkAfter a line has been read and implemented by the Auto Configurationfeature, it automatically adds “in-use” to the end of the line to ensure that theinformation is not used for the next switch. To replicate the entire USB autoconfiguration process, the “in-use” statements from the .setup file need to beremoved. Then, if the process is restarted, the MAC address/IP addresscombinations will be ensured for any switch that has previously attemptedupgrade and all other switch upgrades can take place as if for the first time.What Is the DHCP Auto Configuration Process?If the USB Auto Configuration fails or is not used, the switch can use aDHCP server to obtain configuration information from a TFTP server.DHCP Auto Configuration is accomplished in three phases:1 Assignment or configuration of an IP address for the switch2 Assignment of a TFTP server3 Obtaining a configuration file for the switch from the TFTP serverAuto Configuration is successful when an image or configuration file isdownloaded to the switch or stack master from a TFTP server.NOTE: The downloaded configuration file is not automatically saved to startup-config. You must explicitly issue a save request (copy running-config startup-config) in order to save the configuration.