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Portcfgdport – Brocade Fabric OS Command Reference (Supporting Fabric OS v7.3.0) User Manual

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Fabric OS Command Reference

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portCfgDPort

2

portCfgDPort

Configures a port as a D_Port.

SYNOPSIS

portcfgdport --enable [-dwdm] [slot/]port_list

portcfgdport --disable [-dwdm] [slot/]port_list

portcfgdport --provision [-add] [slot/]port_list

portcfgdport --provision [-delete] [slot/]port_list

portcfgdport --provision [-show] [slot/]port_list

portcfgdport --help

DESCRIPTION

Use this command to configure a diagnostic port (D_Port). The D_Port is not part of the fabric. It does not
carry any interswitch traffic or data traffic. The D_Port is used solely for the purpose of running link-level
diagnostics between two switches, switch-HBA, AG-AG, or AG-HBA and to isolate link level fault on the
port, in the small form factor pluggable (SFP), or in the cable.

You must configure both ends of the link between a given pair of switches, and you must disable the port
before you can configure a D_Port. Re-enabling the D_Ports will automatically start the diagnostics when
the ports come online.

The D_Port test performs the following diagnostics:

An electrical loopback test (supported only on 16 Gb SFPs capable of electrical loopback)

An optical loopback test (supported only on 16 Gb SFPs capable of optical loopback)

A link traffic test

A link distance measurement

NOTES

The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in
place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for
details.

This command is supported only on Fibre Channel ports. SFPs must be 10 Gb or 16 Gb
Brocade-branded SFPs and run Fabric OS v7.0.0 or later on 16 Gb-capable platforms.

This command is not supported on the Brocade FC8-32E and Brocade FC8-48E port blades.

Beginning with Fabric OS v7.2.1 or later, the command is also supported on 8 Gb LWL/ELWL
Brocade-branded SFPs, QSFPs or QSFP+ on 16 Gb-capable platforms.

D_Port configuration is not supported on EX_Ports and ports configured in encryption mode or
compression mode.

Links with mismatched D_Port configuration will be segmented or disabled.

Forward Error Correction (FEC) is not supported on D_Ports configured with Dense Wavelength Division
Multiplexing (DWDM).

On-Demand D_Port test must not be run on the links having DWDM as it can cause D_Port test to stuck
in progress. If DWDM is present in between, configure the static D-Port test with -dwdm option.

Do not run D_Port tests on more than eight links at a time for normal (not long distance) links on FC16-64
blade. On a FC 16-64 blade, do not enable the On-Demand D_Port with bladeInsert or slotPowerOn.

Run D_Port test on one link at a time for 100 Km long distance ports on FC 16-64 blade. D_Port tests on
other long distance links must be started only after the D_Port test completes on the previous long
distance link.