Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 1456

Example mapping, see PFC configuration notes. A PFC traffic class requires a 1-to-1 mapping - only one dot1p value is mapped to a qos-group number. OS10(config)# class-map type network-qos cc1 OS10(conf-cmap-nqos)# match qos-group 3 OS10(conf-cmap-nqos)# exit Example (policymap) OS10(config)# policy-map type network-qos pp1 OS10(conf-pmap-network-qos)# class cc1 OS10(conf-pmap-c-nqos)# pfc-cos 3 Supported Releases 10.3.0E or later pfc-shared-buffer-size Configures the number of shared buffers available for PFC-enabled traffic on the switch. Syntax Parameter Default Command Mode Usage Information Example pfc-shared-buffer-size kilobytes kilobytes - Enter the total amount of shared buffers available to PFC-enabled dot1p traffic in kilobytes, from 0 to 7787. 832KB SYSTEM-QOS By default, the lossy ingress buffer handles all ingress traffic. When you enable PFC, dot1p ingress traffic competes for shared buffers in the lossless pool instead of the shared lossy pool. Use this command to increase or decrease the shared buffer that is allowed for PFC-enabled flows. The configured number of shared buffers is reserved for PFC flows only after you enable PFC on an interface using the priorityflow-control mode on command. 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 Parameter Default Command Mode Usage Information Example priority-flow-control {mode on} mode on - Enable PFC for FCoE and iSCSI traffic on an interface without enabling DCBX. Disabled INTERFACE 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. OS10(conf-if-eth1/1/1)# priority-flow-control mode on Supported Releases 10.3.0E or later 1456 Converged data center services