Failed Function Processor Replacement - Nortel Multiservice Switch 7400 Installation & Maintenance

Failed function processor replacement

Replace a failed function processor (FP) to either restore or ensure continued
delivery of configured services.
Prerequisites to failed function processor replacement
• In order to replace an FP, a software operator and hardware installer must
coordinate their activities. Failure to do so can result in service
interruptions. Whenever possible, schedule upgrades and replacements
of spared FPs during maintenance windows.
• See
instructions.
• Anytime you replace a failed FP with an FP of another vintage, you must
follow the task flow for upgrading an FP.
• When replacing a failed 32-port DS1 or E1 MSA 2-slot FP with an
equivalent 1-slot FP, follow
to the tables of DS1 and E1 compatible replacements of 1-slot and 2-slot
FPs in NN10600-170 Nortel Multiservice Switch 7400 Hardware
Description.
• When replacing a 2-slot FP that has optical ports with a 1-slot FP, do this
kind of task by following
difference in functionality between an MSA 1-slot and 2-slot FP of the
Copyright © 2005, Nortel
CAUTION
Risk of electrostatic damage
When handling processor cards, wear a grounded antistatic wrist
strap so that you do not damage electronic parts. For more
information, see Avoiding damage from static electricity (page
CAUTION
Service loss on active ports
Unspared FPs, including FPs configured with intra-card APS (port-to-
port sparing on a single FP), will experience a loss of service on any
active ports for the time it takes to replace the FP.
Unpacking a processor card (page 469)
Function processor upgrade (page
Function processor upgrade (page
Nortel Multiservice Switch 7400
Hardware Installation, Maintenance, and Upgrade
NN10600-175 7.1S1 Standard
PCR7.1 and up October 2005
135).
for FP and CP handling
101). Refer
101). The only
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