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The grey square indicates the EFC Server cannot communicate with
the switch because:
•
The switch-to-EFC Server Ethernet link failed.
•
Ac power distribution in the switch failed.
•
The control processor (CTP) card failed.
Does a grey square appear at the alert panel and as the background
to the icon representing the switch reporting the problem?
YES
NO
↓
Go to
step
10.
8
At the switch reporting the problem, ensure the power switch is set to
the Power On (1) position. Inspect the switch for indications of being
powered on, such as:
•
At the front panel, an illuminated PWR or ERR indicator.
•
Green LEDs illuminated on the power supplies.
•
Audio emanations and airflow from fans.
Does the switch appear powered on?
YES
NO
↓
A power distribution problem is indicated. Go to
obtain event codes. If no event codes are found, go to
0100: power distribution analysis
9
Either a switch-to-EFC Server Ethernet link failure or CTP card failure
is indicated. Go to
step 23
are found:
a. Fault isolate the least severe failure indicated (Ethernet link
problem). Go to
MAP 0400: loss of console communication
page 221.
b. If MAP 400 does not isolate the problem, fault isolate the CTP
card problem. Go to
analysis
on page 210.
on page 204.
to obtain event codes. If no event codes
MAP 0200: POST, reset, or IPL failure
Chapter 3: Diagnostics
step 23
to
MAP
on
189
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