Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.0ER - Page 636
queue-limit, show interface, Example, Supported Releases, Syntax, Parameters, Default, Command Mode
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Example and link-layer flow control (LLFC) at the same time on an interface. The no version of this command disables PFC on an interface. When you disable PFC, remove 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 queue-limit Sets the static and dynamic thresholds used to limit the shared-buffer size of PFC traffic-class queues. Syntax queue-limit {thresh-mode [static kilobytes | dynamic weight]} Parameters • thresh-mode - Buffer threshold mode. • static kilobytes - Enter the fixed shared-buffer limit available for PFC traffic-class queues in kilobytes (0 to 7787; maximum amount tuned by the pfc-shared-buffer-size command). • dynamic weight - Enter the weight value used to dynamically determine the shared-buffer limit available for PFC traffic-class queues (1 to 10). Default Command Mode Usage Information Example Dynamic weight of 9 and static shared-buffer limit of 12479488 kilobytes POLICY-CLASS NETWORK-QOS 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 dynamic queue-limit is determined by the current amount of available shared buffers. 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] Parameters None Default Not configured Command Mode EXEC Usage Information Use the details option to display PFC statistics on received/transmitted frames for each dot1p (CoS) value, and use the clear qos statistics interface ethernet 1/1/1 command to delete PFC statistics and restart the counter. Example (details) OS10(config)# show interface ethernet 1/1/15 priority-flow-control details ethernet1/1/15 Admin Mode : true Operstatus: true PFC Priorities: 3 Total Rx PFC Frames: 0 Total Tx PFC frames: 587236 636 Converged data center services
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