Dell S4148U-ON OS10 Enterprise Edition User Guide Release 10.4.0E R2 - Page 564

Storm control Traffic storms created by packet flooding or other reasons may degrade the performance of the network. The storm control feature allows you to control unknown unicast, multicast, and broadcast traffic on Layer 2 and Layer 3 physical interfaces. OS10 device monitors the current level of traffic rate at fixed intervals, compares the traffic rate with configured levels, and drops excess traffic. By default, storm control is disabled on all interfaces. You can enable storm control using the storm-control { broadcast | multicast | unknown-unicast } rate-in-pps command in the INTERFACE mode. Configure storm control • The following example enables broadcast storm control with a rate of 1000 packets per second (pps) on Ethernet 1/1/1. OS10(conf-if-eth1/1/1)# storm-control broadcast 1000 QoS commands bandwidth Assigns a percentage of weight to the queue. Syntax bandwidth percent value Parameters percent value - Enter the percentage assignment of bandwidth to the queue (1 to 100). Default Not configured Command Mode POLICY-MAP QUEUE Usage Information If you configure this command, you cannot use the priority command for the class. Example OS10(conf-pmap-que)# bandwidth percent 70 Supported Releases 10.2.0E or later class Creates a QoS class for a type of policy-map. Syntax class class-name Parameters class-name - Enter a name for the class-map (up to 32 characters). Default Not configured Command Mode POLICY-MAP-QUEUEING Usage Information If you define a class-map under a policy-map, the type (qos, queuing, or control-plane) is the same as the policy-map. You must create this map in advance. The only exception to this rule is when the policy-map type is trust, where the class type must be qos. 564 Quality of service