Upgrading And Verifying A Prom; Upgrading Proms Remotely - Nortel Versalar 15000 Troubleshooting Manual

Managing and Troubleshooting the Versalar Switch Router 15000

Upgrading and Verifying a PROM

To upgrade or verify the software on a diagnostic or bootstrap PROM, use the
prom
If a software release includes a PROM software upgrade, see the upgrade
documentation shipped with the software for instructions on upgrading the
PROMs on your router.
Caution: If you try to update the PROM and you do not follow the PROM
updating instructions, you may disable the router.
During an upgrade, the system erases the image stored in the target PROM and
writes the new image into the PROM. This process is sometimes called "burning"
the PROM. To verify the image update, the system compares the contents of the
new image file to the image file in the PROM.

Upgrading PROMs Remotely

Because the operations involved in upgrading PROMs place an increased load on
the router, there is a greater chance that the PROM upgrade process will time out
or fail during periods of peak traffic on your network.
Caution: If the PROM upgrade process is interrupted, it could disable the
router.
Follow these guidelines to ensure that the PROM upgrade is successful:
• Perform the upgrade during nonpeak hours to ensure a minimum traffic load
on the router.
• On systems with multiple SSP cards, upgrade the PROM for each slot
separately. Attempting to upgrade multiple slots at the same time increases the
load on the backplane.
5-12
command. You must be logged in as "Manager" to run the command.
prom
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