Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 648

PFC commands pause Configures the ingress buffer and pause frame settings used for PFC traffic classes. Syntax Parameters pause [buffer-size kilobytes pause-threshold kilobytes resume-threshold kilobytes] • buffer-size kilobytes - Enter the reserved (guaranteed) ingress-buffer size in kilobytes for PFC dot1p traffic (0 to 7787). • pause-threshold kilobytes - Enter the threshold used to send pause frames in kilobytes to a transmitting device (0 to 7787). • resume-threshold kilobytes - Enter the threshold used to request a transmitting device in kilobytes to resume sending traffic (0 to 7787). Defaults The default ingress-buffer size reserved for PFC traffic classes, and the pause and resume thresholds vary according to the interface type. The default egress buffer reserved for PFC traffic classes is 0 on all interface types. Table 16. Port defaults Port Speed 10G Port PFC reserved ingress buffer 45 KB PFC pause threshold 9 KB PFC resume threshold 9 KB 25G Port 54 KB 9 KB 9 KB 40G Port 93 KB 18 KB 9 KB 50G Port 111 KB 18 KB 9 KB 100G Port 178 KB 36 KB 9 KB Command Mode Usage Information Example POLICY-CLASS NETWORK-QOS Use the pause command without optional parameters to apply the default ingress-buffer size, and pause (XON) and resume (XOFF) thresholds. Default values for the buffer-size, pause-threshold, and resumethreshold parameters vary across interface types and port speeds. The default values are based on the default MTU size of 9216 bytes. Use the optional queue-limit thresh-mode command to change the amount of shared buffers available to PFC traffic-class queues in the policy-class-map. OS10(config)# policy-map type network-qos pp1 OS10(conf-pmap-network-qos)# class cc1 OS10(conf-pmap-c-nqos)# pause buffer-size 30 pause-threshold 20 resumethreshold 10 Supported Releases 10.3.0E or later 648 Converged data center services