Users Guide

468 Fabric OS Administrator’s Guide
53-1002920-02
Using D_Port with HBAs
17
Dynamic mode configuration
This procedure enables a dynamic D_Port diagnostic session from the connected switch to an HBA.
NOTE
D_Port on HBAs is supported only on 16-Gbps SFP transceivers.
1. Disable the switch port by using the portDisable [slot/]port command.
2. Enable the switch port as a D_Port by using the portCfgDport - -enable [slot/]port command.
3. Enable the switch port by using the portEnable [slot/]port command.
To verify whether the port is a D_Port, use the bcu port - -list command and look for a “D” in the
listing.
For more details on adapter configuration, refer to the Brocade Fabric Adapters Administrator’s
Guide.
BCU D_Port commands
The following BCU commands can be used for D_Port configuration and control:
• bcu diag --dportenable — Enables D_Port on a specific port, sets the test pattern, and sets the
frame count for testing.
• bcu diag --dportdisable — Disables D_Port on a specific port and sets the port back to an
N_Port or NL_Port.
• bcu diag --dportshow — Displays test results for a test in progress on a specific port.
• bcu diag --dportstart — Restarts a test on a specific port when the test has completed.
• bcu port --list — Displays the D_Port enabled or disabled state on the adapter and connected
switch.
NOTE
If you stop the test from the switch side, you should disable D_Port on the HBA side.
Use bcu diag - -dportdisable in static D_Port mode or bcu port - -disable in dynamic D_Port mode.
Limitations and considerations for D_Port with HBAs
Keep in mind the following limitations and considerations for D_Port configurations:
• D_Port is supported only on Brocade 16-Gbps HBA (Brocade Fabric Adapter 1860) ports
operating in HBA mode with a 16-Gbps SFP+ on Brocade 16-Gbps switches running Fabric OS
version 7.1 or later. In addition, the Brocade adapter must be using driver version 3.2.0 or
higher.
• D_Port is supported on non-Brocade 16-Gbps HBAs if you have a Fabric Vision license present
on the switch and if the HBA vendor has implemented the Brocade HBA D_Port support.
• D_Ports do not support a loop topology.
• D_Ports are not supported in a configuration of an HBA to another HBA (in target mode).
• D_Ports on the HBA do not support forward error correction (FEC) and credit recovery (CR). If
these features are enabled on the switch side, the HBA ignores them.
• D_Port is not supported on adapter ports configured in CNA mode.