Service Manual

• verify the integrity of the Dell Networking OS image the DHCP oer downloads
• dynamically decide what types of congurations to apply to your system based on various factors such as network reachability, port
status, or neighbor discovery
• use LLDP to monitor and generate reports for CPU and memory utilization, port trac status, and to perform link and topology
checking
You can provide a pre–conguration script in DHCP option 209 to either congure the switch or download a conguration le. The script
can download a conguration le or apply CLI commands. If present in the downloaded conguration, post-conguration script CLIs
execute.
You can set the system to retry downloading a conguration up to six times or to automatically save the downloaded conguration or script
on the switch.
After the conguration applies, it triggers a post–conguration script to ensure that the congurations and switch functions are correct.
Dene conguration parameters on the DHCP server for each chassis based on the chassis MAC Address or Vendor–Class–Identier in
DHCP oer 60 or a combination of both.
The conguration scripts such as Perl, Python, and Ruby are supported if you pre-installed the SmartScript package on the system.
The system supports pre–conguration scripts in EXPECT, TCLSH, and ZSH.
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 auto–execution (auto–exec) script is the same as a pre–conguration script except that it runs on every reboot in Normal mode.
Store scripts in a flash://autoexec le. Auto–exec scripts are independent of BMP.
The auto–exec script runs only when:
• BMP is disabled.
• The script is stored in a flash://autoexec le.
• Before reloading the system, use the boot-type normal-reload command in the reload-type sub command mode.
If the auto–exec script fails, the system generates a message indicating the failure and does not load the conguration le. Before
continuing the upgrade, correct the error in the script.
Post–conguration Scripts
The post–conguration script runs after the start-up conguration is applied as script post-config script-name. In BMP mode,
after the pre-conguration script completes and the conguration loads, you can run a post-conguration script if one is present in the
conguration le. In normal reload, if there is
script post-config script-name cong in the startup cong le, post-conguration
script executes.
Bare Metal Provisioning
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