QoS Hierarchical Queuing Framework (HQF)

HQF (Hierarchical Queuing Framework) is an evolution of MQC, that adds the following QoS functionality:

  • The ability to provide multiple levels of packet scheduling
  • The ability to support integrated class-based shaping and queuing
  • The ability to apply fair queuing and drop policies on a per-class basis

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_hrhqf/configuration/15-s/qos-hrhqf-15-s-book/qos-hrhqf.pdf