Troubleshooting - Brocade Communications Systems DCX-4S Backbone Hardware Installation Manual

Troubleshooting

Troubleshooting
The following table provides a list of issues, possible causes, and recommended actions.
TABLE 16
Issue
Entire chassis powers off
automatically.
Several or all components are
not operating.
Serial connection is faulty or
serial port logs have incorrect
or missing information.
CP Ethernet link speed is
different than expected or a
link cannot be established.
Configuration data is
inaccurate or cannot be
accessed.
Initial set up results in IP
address/Domain ID conflict.
116
Troubleshooting the Brocade DCX-4S
Possible cause
Power supplies are
inadequate to support the
installed components.
One or both power cables
may not be connected to a
live source.
One or both AC power
switches might be off.
Serial cable is not
connected correctly.
Terminal emulator
application parameters are
not set correctly.
Serial port might be
incompatible (only RS-232
is supported).
Pins on the serial cable or
serial port might be
damaged.
There might be a conflict
with the CP Ethernet link
speed negotiation set up
by the network.
Chassis was powered
off/on while a WWN card
was uninstalled or failed.
The Brocade DCX-4S was
rebooted while a WWN
card was uninstalled or
failed.
The Brocade DCX-4S was
connected to the fabric
before being configured.
Recommended action
Add an additional power supply.
Ensure that both power cables are connected to
live outlets.
Ensure that both AC power switches are on (AC
switches light up green when on).
Ensure that the cable is firmly connected to the
workstation computer and to the Brocade DCX-4S.
Ensure that the terminal emulator application is
configured as follows: 9600 bits per second, 8
databits, no parity, 1 stop bit, no flow control.
Ensure that the Brocade DCX-4S is connected to
an RS-232 port. RS-423 serial ports might
experience difficulties due to corner-case
incompatibilities of the standards.
Remove the cable and inspect the pins on the
cable and in the serial port. Do not reinstall if the
pins on either component have any visible damage,
as this could damage the pins on the other
component. Replace the components as required.
Specify the CP Ethernet link speed by entering the
ifModeSet command.
For more information about Ethernet connectivity to
the Brocade DCX-4S, refer to the LAN guidelines
provided through the MyBrocade Web site.
Install an operational WWN card and power the
system off/on again.
See Logging In and Configuring the Brocade
DCX-4S on page 33 and the Fabric OS
Administrator's Guide for configuration information.
Brocade DCX-4S Backbone Hardware Installation Guide
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