HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual page 360

where:
monitor_class The monitor class, which can be one of EE (end-to-end), FLT (filter-based), or
slotnumber
portnumber
monitorId
NOTE: In Fabric OS 3.1.0 and 4.1.0 (or later) the portStatsClear command clears AL_PA-based CRC
error counters for all the ports in the same group.
The following example clears statistics counters for an end-to-end monitor:
switch:admin> perfMonitorClear --class EE 1/2 5
End-to-End monitor number 5 counters are cleared
switch:admin> perfMonitorClear --class EE 1/2
This will clear ALL EE monitors' counters on port 2, continue?
(yes, y, no, n): [no] y
The following example clears statistics counters for a filter-based monitor:
switch:admin> perfMonitorClear --class FLT 1/2 4
Filter-based monitor number 4 counters are cleared
switch:admin> perfMonitorClear --class FLT 1/2
This will clear ALL filter-based monitors' counters on port 2, continue?
(yes, y, no, y): [no] y
The following example clears statistics counters for an ISL monitor:
switch:admin> perfMonitorClear --class ISL 1
This will clear ISL monitor on port 1, continue? (yes, y, no, n): [no] y
360 Administering Advanced Performance Monitoring
ISL (inter-switch link). The
Specifies the slot number for a 4/256 SAN Director. For all other switches, this
operand is not required. The slot number must be followed by a slash ( / ) and
the port number, so that each port is represented by both slot number (1 through
4 or 7 through 10) and port number (0 through 15).
The 4/256 SAN Director has a total of 10 slots. Slot numbers 5 and 6 are
control processor blades; slots 1 through 4 and 7 through 10 are port blades.
For 16-port blades, there are 16 ports, counted from the bottom, numbered 0 to
15. For 32-port blades, there are 32 ports numbered 0 to 31.
Specifies a port number. Valid values for port number vary, depending on the
switch type. This operand is required.
Specifies the monitor number to clear. Monitor numbers are defined when you
create the monitor on a port. This operand is optional. If not specified, all
monitor counters on the port are cleared. This operand does not apply to ISL
monitors.
class monitor_class operand is required.
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