Dell PowerSwitch S5212F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 1282

Example OS10(config)# system qos OS10(conf-sys-qos)# pfc-shared-buffer-size 1024 Supported Releases 10.3.0E or later priority-flow-control Enables PFC on ingress interfaces. Syntax priority-flow-control {mode on} Parameter mode on - Enable PFC for FCoE and iSCSI traffic on an interface without enabling DCBX. Default Disabled Command Mode INTERFACE Usage Information Before you enable PFC, apply a network-qos policy-class map with the specific PFC dot1p priority values to the interface. In the PFC network-qos policy-class map, use the default buffer-size values if you are not sure about the pause-threshold and resume-threshold settings that you want to use. You cannot enable PFC and LLFC simultaneously on an interface. The no version of this command disables PFC on an interface. When you disable PFC, delete the PFC network-qos policy-class map applied to the interface. Example OS10(conf-if-eth1/1/1)# priority-flow-control mode on Supported Releases 10.3.0E or later queue-limit Sets the static and dynamic thresholds that are used to limit the shared-buffer size of PFC traffic-class queues. Syntax Parameters queue-limit {thresh-mode [static kilobytes | dynamic weight]} • thresh-mode -Specifies the Buffer threshold mode. • static kilobytes - Enter the static followed by the fixed shared-buffer limit available for PFC traffic- class queues in kilobytes, from 0 to 7787. The value of this parameter must be within the maximum amount tuned by the pfc-shared-buffer-size command. • dynamic weight - Enter the dynamic followed by the weight value used to dynamically determine the shared-buffer limit available for PFC traffic-class queues, from 1 to 10. Default Dynamic weight of 9 and static shared-buffer limit of 12,479,488 kilobytes. Command Mode POLICY-CLASS NETWORK-QOS Usage Information To tune the amount of shared buffers available for the static limit of PFC traffic-class queues on the switch, use the pfc-shared-buffer-size command. The current amount of available shared buffers determines the dynamic queue-limit. Example OS10(config)# policy-map type network-qos pp1 OS10(conf-pmap-network-qos)# class cc1 OS10(conf-pmap-c-nqos)# queue-limit thresh-mode static 1024 Supported Releases 10.3.0E or later show interface priority-flow-control Displays PFC operational status, configuration, and statistics on an interface. Syntax show interface [ethernet node/slot/port[:subport]] priority-flow-control [details] 1282 Converged data center services