Nortel Passport 15000, Hardware Installation And Maintenance, Page: 145 / 874

Chapter 10 Function processors 145
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade 5.2S2
FP upgrade
Upgrade an FP in the shelf with one of the same cardtype but a different PEC
or version to enable the enhancement of configured services.
• “Prerequisites to FP upgrade” (page 145)
• “FP upgrade task flows” (page 146)
Prerequisites to FP upgrade
• Ensure you have access to 241-5701-600 Passport 7400, 15000, 20000
Configuration Guide so that you can follow the software procedures used
by this task.
• Use an FP with a compatible or equivalent PEC as defined in “Processor
card compatibility” (page 68).
• Choose a period of low average traffic for upgrading cards to minimize
the impact of removing the standby card from service.
• Determine if any cabling changes are required by the new FP(s). If you
are replacing only a few FPs and there are not many new cables required,
you can route new cables and leave the existing cables in place. If you are
replacing a large number of FPs with many cables, you will need to
consider removing some of the existing cables to make room in the cable
management path.
For example: If you are replacing all of the 16-port OC-3/STM-1 MT-RJ
cards in your shelf with the newer LC version, the volume of cables will
require that you remove the existing cables from the cable trough in order
CAUTION
Risk of damage to equipment from software
An incompatible software load can damage an FP beyond
a field repair. Ensure that the software running on the
switch meets the minimum software requirement for a
replacement FP. For information on minimum software
requirements see 241-5701-615 Passport 7400, 15000,
20000 FP Configuration Reference.