Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 684

portCfgDPort portCfgDPort Configures a port as a D_Port. Synopsis portcfgdport --enable [-dwdm] [slot/]port_list portcfgdport --disable [-dwdm] [slot/]port_list portcfgdport --provision [-add] [-dwdm] [slot/]port_list portcfgdport --provision [-delete] [-dwdm] [slot/]port_list portcfgdport --provision [-show] [slot/]port_list portcfgdport --help Description Notes 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 and 32 Gb SFPs capable of electrical loopback) • An optical loopback test (supported only on 16 Gb and 32 Gb SFPs capable of optical loopback) • A link traffic test • A link distance measurement The execution of this command is subject to Virtual Fabric restrictions that may be in place. Refer to "Using Fabric OS Commands" and "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. 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, SIM-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. 660 Brocade Fabric OS Command Reference 53-1004112-02