Perfshowalpacrc - Brocade Communications Systems 8 Command Reference Manual

perfShowAlpaCrc

Displays the CRC error count by port or by arbitrated loop physical address (AL_PA).
Synopsis perfshowalpacrc [slot/]port [ALPA]
Description Use this command to display the cyclic redundancy check (CRC) error count of one or all devices
attached to a port. If the AL_PA operand is specified, only the CRC count for that AL_PA device is
displayed. If the AL_PA operand is not specified, the CRC count for all the AL_PA devices on a
specified port are displayed.
CRC count is a 64-bit counter. The CRC count value is displayed in hexadecimal.
Notes This command requires an Advanced Performance Monitoring license.
This command is not supported on virtual FC ports (VE/VEX_Port), EX_Port, M (Mirror) ports and
GbE ports.
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 not supported on all platforms. Refer to the Fabric OS Administrator's Guide for
specific hardware support.
Operands This command has the following operands:
slot
port
ALPA
Examples To display the CRC error count for all AL_PA devices on a port:
See Also perfClearAlpaCrc
Fabric OS Command Reference
53-1001764-02
For bladed systems only, specifies the slot number of the port to be displayed,
followed by a slash (/).
Specifies the number of the port to be displayed, relative to its slot for bladed
systems. Use switchShow for a list of valid ports.
Specify the AL_PA address to get the CRC errors for a specific device. This
operand is optional; if the operand is omitted, this command displays CRC
error counts for all devices attached to the specified port.
switch:admin> perfshowalpacrc 2/4
ALPA CRC_ERROR_COUNT
----------------------------------
0x01 0
0x03 0
2
perfShowAlpaCrc
591