Dell Emulex Family of Adapters - Manual (Page 353)

OneCommand Manager Command Line Interface Version 10.2 User Manual P010067-01A Rev. A
5. CLI Client Command Descriptions
Diagnostic Commands
353
Parameters
Example
hbacmd h=10.192.203.151 m=cim SetDCBPriority 10:00:00:00:c9:3c:f7:88 3
0,1,2,4,5,6,7 3 0 0 0 0 0 0
Diagnostic Commands
DPortTest
Notes:

This command is only supported for LPe16000 Fibre Channel adapters
connected to D_Port-enabled Brocade switches.

D_Port should not be enabled on the switch port.
D_Port, also called ClearLink, is a set of diagnostic tests that allows you to detect
physical cabling issues that result in increased error rates and intermittent behavior.
The DPortTest command runs a series of tests including local electrical loopback,
loopback to the remote optics, loopback from the remote port to the local optics, and a
full-device loopback test with data integrity checks. It also provides an estimate of cable
length, from the switch to the adapter, to validate that a proper buffering scheme is in
place.
The various tests allow some fault isolation, so you can distinguish faults that are the
result of marginal cables, optics modules, as well as, connectors or optics seating. If the
adapter, firmware, SFP, or switch do not support D_Port testing, an error is generated.
Notes:

D_Port tests run with the physical connection in an offline diagnostic state, so
normal I/O cannot be sent through the physical port while the test is in
progress. While the port is in D_Port mode, the link will appear down on that
port; similar to an unplugged cable.

The DPortTest command only runs in on-demand mode with the host initiating
the tests with the switch.
WWPN
The WWPN of an FCoE function on a port.
MAC
The MAC address of a function on a port.
PFC
The PFC priority that is a comma-separated list of up to eight
values, ranging from 0–7.
PG0-PG7
Priority group membership that is a comma-separated list of
priorities ranging from 0–7. Each set of priorities for a group must
be separated by a space. All priorities (0–7) must be assigned to
some PGID.
PG15
PG15 group membership (required on RoCE ports only)