Dell Force10 S60-44T FTOS Command Line Reference Guide for the S60 System FTOS - Page 810
Policy-Based QoS Commands, strict-priority queue
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www.dell.com | support.dell.com Table 32-3. show interfaces police Command Example Fields (continued) Field Total: yellow Total: red Description Total number of packets that have exceeded the configured committed rate Total number of packets that have exceeded the configured peak rate strict-priority queue c e s Configure a unicast queue as a strict-priority (SP) queue. Syntax strict-priority queue unicast queue number Parameters unicast queue number Enter the keywords unicast queue followed by the queue number. C-Series and S-Series Range: 1 to 3 E-Series Range: 1 to 7 Defaults Command Modes Command History No default behavior or value CONFIGURATION Version 8.3.3.1 Version 7.6.1.0 Version 7.5.1.0 pre-Version 6.1.1.1 Introduced on S60 Introduced on S-Series Introduced on C-Series Introduced on E-Series Usage Information Once a unicast queue is configured as strict-priority, that particular queue, on the entire chassis, is treated as strict-priority queue. Traffic for a strict priority is scheduled before any other queues are serviced. For example, if you send 100% line rate traffic over the SP queue, it will starve all other queues on the ports on which this traffic is flowing. Policy-Based QoS Commands Policy-based traffic classification is handled with class maps. These maps classify unicast traffic into one of eight classes in E-Series and one of four classes in C-Series and S-Series. FTOS enables you to match multiple class maps and specify multiple match criteria. Policy-based QoS is not supported on logical interfaces, such as port-channels, VLANS, or loopbacks. The commands are: • bandwidth-percentage • bandwidth-weight • class-map • clear qos statistics • description • match ip access-group • match ip dscp • match ip precedence • match mac access-group 810 | Quality of Service (QoS)