Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.0ER - Page 571
Strict priority queuing
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5 Configure a queuing class in POLICY-MAP mode. class class-name 6 Assign a bandwidth percent (1 to 100) to nonpriority queues in POLICY-MAP-CLASS-MAP mode. bandwidth percent value Configure bandwidth allocation OS10(config)# class-map type queuing solar OS10(conf-cmap-queuing)# match qos-group 5 OS10(conf-cmap-queuing)# exit OS10(config)# policy-map lunar OS10(config)# policy-map type queuing lunar OS10(conf-pmap-queuing)# class solar OS10(conf-pmap-c-que)# bandwidth percent 80 View class-map OS10(conf-cmap-queuing)# do show class-map Class-map (queuing): solar (match-any) Match: qos-group 5 View policy-map OS10(conf-pmap-c-que)# do show policy-map Service-policy (queuing) output: solar Class-map (queuing): lunar bandwidth percent 80 Strict priority queuing OS10 uses queues for egress QoS policy-types. You can enable priorities to dequeue all packets from the assigned queue before servicing any other queues. When more than one queue is assigned strict priority, the highest number queue receives the highest priority. You can configure strict priority to any number of queues. By default, all queues schedule traffic per WDRR. You can use the priority command to assign the priority to a single unicast queue-this configuration supersedes the bandwidth percent configuration. A queue with priority enabled can starve other queues for the same egress interface. Create class-map 1 Create a class-map, and configure a name for the class-map in CONFIGURATION mode. class-map type queuing class-map-name 2 Configure a match criteria in CLASS-MAP mode. match queue queue-id Define a policy-map 1 Define a policy-map, and create a policy-map name CONFIGURATION mode. policy-map type queuing policy-map-name 2 Create a QoS class and configure a name for the policy-map in POLICY-MAP mode. class class-map-name 3 Set the scheduler as the strict priority in POLICY-MAP-CLASS-MAP mode. priority Apply policy-map 1 You can now apply the policy-map to the interface (INTERFACE mode) or all interfaces-SYSTEM-QOS mode. system qos OR interface ethernet node/slot/port[:subport] Quality of service 571