5/13/2014 Troubleshooting

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Brocade DCX Backbone Hardware Reference Manual

53-1000685-13

documentation@brocade.com

Diagnostics and Troubleshooting : Troubleshooting

TroubleshootingTable 28 provides a list of issues, possible causes, and recommendedactions.

TABLE 28 Troubleshooting the Brocade DCX

Issue Possible cause Recommended action

Entire chassis pow ers off

automatically.

Pow er supplies are inadequate to support

the installed components.

Add an additional pow er supply.

Several or all components are not

operating.

One or both pow er cables may not be

connected to a live source.

Ensure that both pow er cables are connected to

live outlets.

One or both AC pow er sw itches might be

off.

Ensure that both AC pow er sw itches are on (AC

sw itches light up green w hen on).

Serial connection is faulty or serial

port logs have incorrect or missing

information.

Serial cable is not connected correctly. Ensure that the cable is f irmly connected to

w orkstation computer and to the Brocade DCX.

Terminal emulator application parameters are

not set correctly.

Ensure that the terminal emulator application is

configured as follow s: 9600 bits per second, 8

databits, no parity, 1 stop bit, no f low control.

Serial port might be incompatible (only RS-

232 is supported).

Ensure that the Brocade DCX is connected to an

RS-232 port. RS-423 serial ports might experience

diff iculties due to corner-case incompatibilities of

the standards.

Pins on the serial cable or serial port might

be damaged.

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.

CP Ethernet link speed is different

than expected or a link cannot be

established.

There might be a conflict w ith the CP

Ethernet link speed negotiation set up by the

netw ork.

Specify the CP Ethernet link speed by entering the

ifModeSet command.

For more information about Ethernet connectivity to

the Brocade DCX, refer to the LAN guidelines

provided through the MyBrocade Web site.

Configuration data is inaccurate or

cannot be accessed.

Chassis w as pow ered off/on w hile a WWN

card w as uninstalled or failed.

Install an operational WWN card and pow er the

system off/on again.

The Brocade DCX w as rebooted w hile a

WWN card w as uninstalled or failed.

5/13/2014 Troubleshooting

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