Version Description
9.7(0.0) Introduced on the Z9500.
Usage
Information By default, iSCSI is enabled on the unit and the flow control is enabled on all of the
interfaces. It is also acts as defaults when the link-level flow control is enabled on
one or more interfaces. To enable DCB, do one of the following:
• Apply the dcb-map command with the no pfc-mode command on to all the
interfaces.
• Disable flow-control on all of the interfaces.
PFC Commands
The following PFC commands are supported on the Z9500 platform.

clear pfc counters

Clear the PFC TLV counters and PFC statistics on an interface or linecard.
Syntax clear pfc counters [port-type slot/port | linecard {unit number
| all } all backplane all}]
Parameters port-type Enter the keywords port-type then the slot/port
information.
linecard unit
number
Enter the keyword linecard to clear the linecard number.
all backplane
all
Enter the keywords all backplane all to clear the
counters on all interfaces.
Defaults none
Command
Modes
EXEC Privilege
Command
History This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the Z9500.
Data Center Bridging (DCB) 607