Nokia 7210 Configuration Manual page 120

Boot Options
To update the preceding BOF parameters, use console access and break the boot
sequence. Then, enter the auto keyword and follow the prompts to update the BOF
parameters. Enter exit when you are done. The boot loader software uses these
parameters to configure the link appropriately and sends out the DHCP requests to
obtain the BOF. The BOF obtained through DHCP must contain the location of the
image file and configuration file (and values for other BOF parameters). If the DHCP
process is successful, the BOF obtained from the network is copied to the local flash.
Caution: The parameter values in the BOF downloaded from the network must match those
configured in the partial BOF. If there is a mismatch between the values retrieved from the
network (that is, the network BOF is not configured to match the new values) and the user-
configured values in the partial BOF, the next reboot of the system will fail. For example,
specifying different auto-negotiate values in the two BOFs may cause the system to fail to
bring up the link, which will cause the auto-init procedure and subsequent reboots to fail.
A mismatch may also cause the system to require twice the number of network resources.
For example, the use of different VLAN ID values causes the system to require twice the
number of resources for two services (one for each VLAN ID).
See
The system first attempts to use uplinkA and then uplinkB parameters to receive a
successful response from the DHCP server. If there is no response on both uplink
ports, the boot procedure is restarted, during which the user can choose to enter the
manual mode or allow the system to default to the auto-init procedure again.
If the image fails to download through the auto-init process, the system loads the
TiMOS image by using the both.tim file located on the local flash (that is, cf1:\both.tim
and cf1:\*TIMOS*\both.tim). After the TiMOS image is loaded and bootup is
successful, the user can choose to continue using the same image by entering the
admin>auto-init stop command within a fixed amount of time, as prompted.
Running the admin>auto-init stop command creates a BOF and saves it on the local
flash, with the image location pointing to the image on the flash. If the user does not
run this command when prompted, the system reboots again and attempts to find an
image through the auto-init process (that is, by sending DHCP requests).
120
Figure 5 for more information about the bootstrap process and system initialization.
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7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
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