Supermicro SSE-F3548S/SSE-F3548SR Configuration User’s Guide
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TFTP server 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 added to dhcpd.conf as shown in the below example.
The lines in bold are newly required, other lines are shown for clarity.
# Need to add the below lines to define option 43.1 for Supermicro switches
2.8.3.2
Switch Firmware Upgrade
The ZTP firmware upgrade feature is enabled in Supermicro switches by default. The default management
IP address configuration is DHCP mode. Hence, when switches boot up with DHCP, it gets the firmware
image file and checks whether an upgrade is needed or not.
The diagram below shows how a switch upgrades the firmware in ZTP.
option space smc-op;
option smc-op.config-file-name code 1 = text;
option smc-op.fw-img-file-name code 4 = 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";
option smc-op.fw-img-file-name "
SSE-F3548-fw-1.0.1.4.installer
";
}
