User`s guide

®
USER’S GUIDE AUTOMATIC TRANSFER SWITCH
114
Boot Mode Transition. Tag 2, Len 1, Data 1/2. This option 43 setting
enables or disables the After IP Assignment option which, by default,
causes the Boot mode option to use the setting that reflects the server that
provided the TCP/IP settings (DHCP Only or BOOTP Only):
• For a data value of 1, the After IP Assignment option is disabled, and
the Boot mode option remains in its DHCP & BOOTP setting after
successful network assignment. Whenever the Automatic Transfer
Switch restarts, it will request its network assignment first from a
BOOTP server, and then, if necessary, from a DHCP server.
• For a data value of 2, the After IP Assignment option is enabled and
the Boot mode option switches to DHCP Only when the Automatic
Transfer Switch accepts the DHCP response. Whenever the Automatic
Transfer Switch restarts, it will request its network assignment (TCP/IP
settings) from a DHCP server only.
Following, in hexadecimal format, is an example of a Vendor Specific
Information option that contains the APC cookie and the disable Boot Mode
Transition setting:
Option 43 = 0x01 0x04 0x31 0x41 0x50 0x43 0x02 0x01 0x01
See DHCP & BOOTP boot process.
For more information about the After IP Assignment, see
Automatic Transfer Switch settings.