Users Guide

576 DHCP and USB Auto-Configuration
What Is USB Auto Configuration?
The USB Auto Configuration feature can be used to configure or upgrade one
or more switches that have not been previously configured, such as when new
switches are deployed, and it is desirable to record the IP/MAC address pairs
along with the configuration and firmware version on a USB key for recovery
purposes. Before deploying the switch, the following steps must be performed
to install pre-deployment configuration and firmware to specific switches:
1 Create a text file that contains IP addresses and netmasks (and optionally,
MAC addresses) and file names that are parsed and used to configure the
switch. The optional MAC address used to identify the switch is the MAC
address of the base MAC address of the switch, although the feature will
accept any of the switch MAC addresses (see "Dell EMC Networking
N3200-ON Series Switch Hardware" on page 183 for further information).
The IP address and netmask are the minimum required fields in the
configuration file. Refer to the example below for an explanation of the file
format.
2 Copy the file onto a USB device, along with any desired switch firmware
and configuration files.
3 Insert the USB device into the front-panel USB port on the Dell EMC
Networking N-Series switch.
When the Auto Configuration process starts and no saved startup-config file
is present on the switch, the feature automatically searches a plugged-in USB
device for configuration information and firmware images. Note that only .stk
files are recognized by USB Auto-Configuration. Mixed stack .itb images are
not recognized by USB Auto-Configuration.
What Files Does USB Auto Configuration Use?
The USB Auto Configuration feature uses the following file types:
• *.setup file for initial switch configuration
• *.text file for configuration information
• *.stk file for software image installation
NOTE: Neither USB Configuration nor Auto Install is invoked if a saved startup
configuration file is on the switch.