Troubleshooting - Broadcom Brocade DCX 8510-4 Backbone Hardware Installation Manual

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NOTE
Error messages do not necessarily indicate that the device requires maintenance.
Each diagnostic test can be implemented by entering the related command through a Telnet or serial session. For a list of
diagnostic tests and commands, refer to the Brocade Fabric OS Administration Guide.
All diagnostic tests are run at all supported link speeds. They might temporarily lock the transmit and receive speeds to
a specific speed. Some diagnostic tests require interconnecting the ports to each other or using loopback plugs. If ports
are interconnected, the media (cables and transceivers) at each end of the connection must be of the same type. For
example, short wavelength media must be connected to short wavelength media, and likewise with long wavelength
media and copper media.
For more information about diagnostic tests and how to run them, refer to the Brocade Fabric OS Administration Guide
and the Brocade Fabric OS Command Reference. For information about system error messages (
refer to the Fabric OS Troubleshooting and Diagnostics Guide.

Troubleshooting

The following table provides a list of issues, possible causes, and recommended actions.
Table 27: Troubleshooting the device
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.
Broadcom
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.
Brocade DCX 8510-4 Backbone Hardware Installation Guide
errShow
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
workstation computer and to the device.
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 device 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
typing the ifModeSet command.
For more information about Ethernet
connectivity to the device, refer to the LAN
guidelines provided through the MyBrocade
website.
Install an operational WWN card and power
the system off/on again.
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