Supermicro SSE-F3548S/SSE-F3548SR Configuration User’s Guide
1. Configuration File Name
2. TFTP Server IP Address
Configuration File Name
The configuration file name is sent to switches from the DHCP server using vendor specific option 43 in sub
option 01.
This is a simple text field that carries the configuration file name with the path in respect to the TFTP server
root directory. If this file is kept in the TFTP root directory in the TFTP server, this field is a simple file name.
TFTP Server IP Address
The configuration file needs to be available in a TFTP server for a switch to download.
The TFTP server’s IP address is sent to switches from the DHCP server using standard DHCP option 66, tftp-
server-name. This field needs to be configured in IP address format (e.g. xxx.xxx.xxx.xxx). Switches cannot
accept server names, as domain name resolution is not supported.
These options can be added to dhcpd.conf as shown in the example below.
The lines in bold are newly required, other lines are shown for clarity.
# Need to add the lines below to define option 43.1 for Supermicro switches.
option smc-op.config-file-name code 1 = text;
option smc-op-encapsulation code 43 = encapsulate smc-op;
# network for Supermicro switches
subnet 172.31.0.0 netmask 255.255.0.0 {
range 172.31.30.10 172.31.30.79;
# the below lines added for automatic restore of configuration
option smc-op.config-file-name "smcSwitch.conf";
option tftp-server-name "172.31.43.59";
}