Fcoe And Fibre Channel Problems; Loss Of Sync And Loss Of Signal Errors In Port Statistics; Fabric Authentication Failures; Adapter Is Not Showing In The Fabric - Brocade Communications Systems CNA 1010 Troubleshooting Manual

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FCoE and Fibre Channel problems

FCoE and Fibre Channel problems

This section provides resolution of problems related to Fibre Channel and FCoE (CNAs only).

Loss of sync and loss of signal errors in port statistics

If the port is having loss of synchronization and signal errors, refer to the following descriptions of
possible causes and recommended actions to help resolve the problem. Learn more about
displaying port statistics in
Possible Cause: Possible physical link problem.
Action: Check authentication settings on the switch and adapter. For the switch, execute the
authutil --show Fabric Fabric OS command. For the adapter, execute the BCU auth --show command
(refer to
Action: Use the BCU auth --show <port> command on the adapter and Fabric OS authutil --show
command on the switch.
Action: Check the shared secret configuration on the attached switch and on the adapter. For the
switch, execute the secAuthSecret Fabric OS command. For the adapter, execute the auth –-secret
BCU command. Refer to
command.

Fabric authentication failures

If failures in the authentication process between the adapter in host system and the connected
switch occur, refer to the following descriptions of possible causes and recommended actions to
help resolve the problem.
Possible Cause: Authenticating configuration is incorrect.
Action: Check authentication settings on the switch and adapter. For the switch, execute the
authutil --show Fabric OS command. For the adapter, execute the BCU auth --show command (refer
to "Authentication settings"
Action: Check the shared secret configuration on the attached switch and adapter. For the switch,
execute the secAuthSecret Fabric OS command. For the adapter, execute the auth –-secret BCU
command. Refer to
command.

Adapter is not showing in the fabric

If the adapter does not appear as a Fibre Channel device in the fabric, refer to the following
descriptions of possible causes and recommended actions to help resolve the problem.
Possible Cause: There is a problem in the fabric or a protocol issue between the adapter and a
fabric.
Action: Check the fabric statistics. Refer to
fabric statistics for the adapter.
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"Port statistics"
"Authentication settings"
"Authentication settings"
on page 88).
"Authentication settings"
If counts for FLOGI sent and FLOGI accept fabric statistics do not match, suspect fabric
problem or protocol issue between adapter and fabric.
on page 69.
on page 88).
on page 88 for details on using the auth-secret
on page 88 for details on using the auth-secret
"Fabric statistics" on page 65 for methods to display
Brocade Adapters Troubleshooting Guide
53-1001582-01