Dell PowerSwitch S5212F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 976

4 Create a queuing type policy-map and configure a policy-map name in CONFIGURATION mode. policy-map type queuing policy-map-name 5 Configure a queuing class in POLICY-MAP mode. class class-name 6 Assign a bandwidth percent, from 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. Enable priorities to dequeue all packets from the assigned queue before servicing any other queues. When you assign more than one queue 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. 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. Consider the following when enabling priority queueing in S5148F-ON: • In a port, one H2 node and three H1 nodes are supported. The H1 node holds 8 unicast queues for data traffic, 8 unicast queues for control traffic, and 8 multicast queues for data traffic. • The H1 nodes mapped to data traffic are scheduled with DWRR and weight of 50 each. The H1 node mapped to control traffic is scheduled with strict priority. • The weights corresponding to each traffic class are applied at queue levels for both unicast and multicast queues. • The bandwidth distribution might go to a minimum of 50, based on the traffic flow in a port. This is determined by the weight of a particular traffic class and traffic type. • The bandwidth sharing based on ETS happens only between same type of queues. • You can enable strict priority queuing only for the same type of traffic. 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 976 Quality of service