Setup Guide

of polling-intervals, then it would be detected as PFC storm condition. The ‘xoff’ state means no
transmission of data happens out of a port/queue even though there are packets buffered in that queue.
Example Use the storm-control pfc command in the configuration mode to enter the ‘storm-control-pfc'
configuration mode. The commands provisioned in this mode are applicable for all the interfaces that have
PFC storm enabled.
DellEMC(conf)#storm-control pfc
DellEMC(conf-storm-control-pfc)#xoff-state threshold polling-count 2
storm-control pfc in queue-drop
When a PFC storm is detected on a port or priority, you can drop the traffic meant for the specified port or priority, so that
the traffic in other queues is not disturbed. You can apply storm-control pfc in queue-drop on an interface, to enable
dropping of the traffic on all the lossless queues of the port.
Syntax
storm-control pfc in queue-drop
Parameters None
Defaults None
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6000, S6000–ON, S61000–ON, Z9100–ON.
Usage
Information
The storm-control pfc in queue-drop command is used to drop the traffic meant for egressing
through the specified port or priority where PFC storm has been detected.
Example
DellEMC(conf-if-te-1/24)# storm-control pfc in queue-drop
queue-drop backoff-force
You can remove the queue-drop state after the specified number of polling is done.
Syntax
queue-drop backoff-force polling—count {number of polling—interval }
Parameters
number of
polling-interval
Enter the number of polling intervals. The range is from 0 to 1000. The default
value is 0.
Defaults 0
Command Modes CONFIGURATION (conf-storm-control-pfc)
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6000, S6000–ON, S61000–ON, Z9100–ON.
Usage
Information
The queue-drop backoff-force polling—count command is used to remove the queue-drop
state unconditionally after the specified number of polling is done. The queue-drop state, which has been
activated due to the detection of PFC storm, is forced to get removed. By default, the queue-drop state
1528 Storm Control