Administrator Guide

NOTE: To display a properly formatted output string, Dell Networking recommends adding the
following clido wrapper function at the beginning of TCLSH and EXPECT scripts:
# Execute clido and return the output string
proc Execclido {cmd_str} {
set str [exec clido "$cmd_str"]
set tmp_str [string map {\n \r\n} $str ]
return $tmp_str
}
...
set out_str [Execclido "show version"]
puts $out_str
...
Auto-Execution Scripts
The autoexecution (autoexec) script is the same as a preconfiguration script except that it executes on
every reboot in Normal mode.
Store scripts in a flash://autoexec file. Autoexec scripts are independent of BMP.
The autoexec script only executes when:
• BMP is disabled.
• The script is stored in a flash://autoexec file.
• Before reloading the system, you use the reload-type normal-reload command in the reload-
type
sub command mode.
If the autoexec script fails, the system generates a message indicating the failure and does not load the
configuration file. Before continuing the upgrade, correct the error in the script.
Post-Configuration Scripts
The post configuration script runs once the start-up configuration is applied as script post-config
script-name. In BMP mode, after the preconfiguration script completes and the configuration loads,
you can run a post-configuration script if one is present in the configuration file.
To check the status of configured ports or protocols, set the host name of the system, or perform
additional configuration settings, use the post-configuration script. The system supports post-
configuration scripts in EXPECT, TCLSH, and ZSH. If you installed the SmartScripts package in your Dell
Networking switches, the system also supports post-configuration scripts in Perl, Python, and Ruby.
Using Preconfiguration Scripts
To preconfigure scripts, follow these steps:
1. Decide what information you want to preconfigure; for example, request username and password
information. Verify the integrity of the boot image the DHCP offer downloads and apply the
configuration types.
2. Create a preconfiguration script in EXPECT, TCL or ZSH.
3. Store the script on any TFTP/FTP/SFTP server that is reachable from the system and mention the URL
file (TFTP/FTP/SFTP) in the DHCP offer.
4. Change the reload-type to BMP and reload the switch. The system boots in BMP mode.
5. The system receives an IP address via the DHCP server which it uses to get a Dell Networking OS
image to boot, a configuration file (if supplied), and a preconfiguration script.
Bare Metal Provisioning
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