Installation guide

CHAPTER

5-1

Cisco 6260 Hardware Installation Guide

OL-2365-01

Troubleshooting

This chapter explains how to isolate faults in the Cisco 6260 system. Most problems in a Cisco 6260 can

be traced to one of the system field-replaceable units (FRUs), which include the following:

• NI-2 cards

• Line cards

• Input/Output (I/O) modules

• Power entry modules (PEMs)

• Fan trays

• Air filters

This chapter consists of three major sections:

• System-Wide Problems, page 5-3

• FRU-Specific Problems, page 5-8

• Alarms, page 5-17

5.1 Hot-Swappable FRUs

All Cisco 6260 FRUs are hot swappable, except the PEM in configurations where only a single PEM

is operating. However, hot swapping some FRUs causes an interruption in service. See Table 5-1.

Table 5-1 Service Interruptions Caused by Replacing FRUs

FRU

Does Hot Swapping

Interrupt Service? Notes

NI-2 card Yes In systems with NI-2 card redundancy, the secondary card

can be hot swapped without incurring service interruption

for the system.

Line card Yes Service is interrupted only for subscribers served by that

line card.

I/O module Yes You must reboot the system after you replace the I/O

module because the MAC address is stored on the

I/O module.

PEM See next column You can replace a PEM without interrupting service if the

other PEM in the chassis is operating normally.