Owner's Manual

42 | Bare Metal Provisioning 2.0
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• The configuration filename is specified in DHCP option 209 as a file name or
URL that is supported for the FTOS image name. In this case, the FTOS image
does not necessarily use option 150.
• The FTOS image name is provided as the “Boot filename” value in a DHCP offer
(128 bytes). This value can be a URL or file name:
• If the Boot filename value is a file name, the TFTP file server's IP address is
provided using option 150. Option 150 is not used for other server types; it is
used only for TFTP servers.
• If the Boot filename value is a URL, the switch supports TFTP, FTP, flash,
and HTTP downloads; for example:
- tftp://10.0.0.1/FTOS-A.B.C.D.bin
- ftp://user:passwd@serverip//mypath/FTOS-A.B.C.D.bin
- flash://FTOS-1.2.3.4.bin -
- http://10.0.0.1/FTOS-A.B.C.D.bin).
The configuration file is provided using option 209.
• If an FTOS image is specified in both option 67 (Bootfile name) and the Boot
filename field in the DHCP offer, BMP 2.0 downloads FTOS image in option
67.
• When an FTOS image file is located, its version number is compared with the
version number of the FTOS image currently used to reload the switch and to
ensure that the version number is valid.
The FTOS image is upgraded to use the downloaded version if there is a version
mismatch on the switch. Then the switch reloads. A checksum is also performed
with the downloaded image.
• The IP address of a TFTP file server provided in a DHCP offer is determined by
checking the following values in this order:
a The IP address is extracted from the bootfile URL or config URL.
b The IP address is the value specified in DHCP option 150.
c The IP address is the value specified in DHCP option 66.
d The IP address is configured in the
server-name ip-address command.
• If the configuration file is downloaded from the server (
config-download enable
option), any saved startup configuration is ignored.
In BMP 2.0, the startup configuration stored in local flash is loaded when you
enter the
config-download disable option in the reload-type jump-start command.
Note that this BMP 2.0 behavior is the same as in BMP 1.5 in which the
honor-startup-config option is supported (see DHCP-Client Mode (Mode C)).
• The IP address obtained from the DHCP server is released after the FTOS image
and configuration file are downloaded. The parameters in the downloaded
configuration file are applied to the running configuration.
If the download of the configuration file fails, all port interfaces are configured as
no ip address and shutdown; management interfaces remain as no ip address
and no shutdown.
• An error message is logged if any errors are detected when applying the
configuration parameters.