Fcoe Link Is Down - Dell Brocade Adapters Troubleshooting Manual

FCoE link is down

NOTE
This issue applies to CNAs and Fabric Adapter ports configured in CNA mode only.
The FCoE link is down between the adapter and switch.
1. Possible Cause: The FCoE link is not administratively enabled.
2. Possible Cause: The FCoE license may not be installed on the connected switch.
3. Possible Cause: The DCB link is not enabled on the adapter.
4. Possible Cause: The VLAN to which the FCoE switch front-end port belongs is not FCF-capable.
5. Possible Cause: The FC-MAP on the FCoE switch is not set for a VLAN with FCF capability.
6. Possible Cause: The FCoE Login group is not created on the FCoE switch, not allowing all
7.
8. Possible Cause: For IBM blade systems, the BladeCenter Open Fabric Manager (BOFM)
Brocade Adapters Troubleshooting Guide
53-1002145-01
Action: Determine if the link is enabled by entering the BCU port --list command. If the port is
administratively disabled, the "port state" field will show Disabled.
Action: Enable the port by entering the BCU port --enable <port_id> command.
Action: Execute the Fabric OS licenseshow command on the connected switch to determine if
the license is installed. Install license if not installed. For more information about Fabric OS
commands and QoS support, refer to the Fabric OS Administrator's Guide.
Action: Verify that the DCB status using the BCU port –list command is displayed as "DCB
Linkup". If "Linkdown" or "Linkup" displays, refer to
Action: Verify if VLAN on front-end port is FCF-capable using the appropriate Fabric OS
command on the attached switch. Refer to the Fabric-OS Command Reference Manual for
more information.
Action: Set the VLAN as FCF-capable using the appropriate Fabric OS commands on the
attached FCoE switch. Refer to the Fabric-OS Command Reference Manual for more
information.
Action: Verify if the FC-MAP on the switch is set for a VLAN with FCF capability using appropriate
Fabric OS command on the attached switch. Refer to the Fabric OS Command Reference
Manual for more information.
Action: Set the FC-MAP for a VLAN with FCF capability using the appropriate Fabric OS
command on the attached switch. Refer to the Fabric OS Command Reference Manual for
more information.
VF-Ports to be part of the login group.
Action: Verify if FCoE Login group is created on switch using the appropriate Fabric OS
command. Refer to the Fabric OS Command Reference Manual for information.
Action: Create an FCoE login group on the switch using the appropriate Fabric OS command.
Possible Cause: PFC (priority flow control), DCB Map, and FCoE Map is not configured correctly
on the FCoE switch.
Action: Refer to "DCB is not enabled"
support in adapter option ROM expects non-zero values for PWWN and NWWN for the FCoE
port. If any values are zero, the link will not come up and port status will display Linkdown.
FCoE and Fibre Channel problems
"DCB is not enabled"
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