How Cisco Hardware queuing model (like 1p7q4t for Cat6800) are related to traffic classes (class-map) ? How assign the X traffic class to Y hardware queue ? Also, if only 6 classes are configured, does it mean that 2 hardware queues are unued ?

  • Cisco has evolved several versions of queuing models, depending on the traffic types and capabilities of the devices. There is no one model. But requests for resources are off-topic here.
    – Ron Trunk
    Jul 7, 2019 at 21:49
  • Thanks Ron. For example here are the Cat6800 hardware queues capabilities (cisco.com/c/en/us/products/collateral/switches/…): Receive: ● 1p7q4t (default) ● 2p6q4t (configurable) Transmit: ● 1p7q4t (default) ● 2p6q4t (configurable) . The question was if CBWFQ define software queues, how these software queues are mapped to these hardware queues ? Or, do these hardware queues are only relevant if we use WRR or DWRR .
    – bdes31
    Jul 8, 2019 at 13:54


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