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Understanding POST Results
Note
Correcting Module POST Failures
Catalyst 2900 Series XL Hardware Installation Guide
3-2
When the POST is successful, the port status LEDs go off, meaning that the
switch is operational. If a test fails, the port status LED associated with the test
turns amber, and the system LED turns amber. Table 3-1 lists the eight tests and
their associated LEDs.
POST failures are usually fatal. Call Cisco Systems if your switch does not pass
POST.
Table 3-1
POST Descriptions
Switch LED
Component Tested
1
DRAM
2
Flash memory
3
Switch CPU
4
System board
5
CPU interface ASIC
6
Switch core ASIC
7
Ethernet controller ASIC
8
Ethernet interfaces
If you install modules WS-X2914-XL or WS-X2922-XL in a Catalyst 2924M XL
or Catalyst 2912MF XL switch, the module fails POST. This failure occurs
because the expansion modules support 2048 MAC addresses and the switch
supports 8192 MAC addresses. To correct the failure, restart the switch with the
module installed. After the restart, the address capacity of the switch is reduced
to 2048 MAC addresses.
Chapter 3
Troubleshooting
78-6461-04
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Table of Contents
Troubleshooting
