How to configure Queuing on Cisco 3560 and 3750 switch

Hello Adrtps

Catalyst 2960s, 3560s, and 3750s use what is known as Multilayer Switch QoS or MLS QoS. This has been replaced with what is known as IOS Modular QoS Command Line Interface (MQC) in platforms including the 9000, 3650/3850, and 4500E. This has to do with the way in which QoS is to be implemented on each type of platform.

The following Cisco live presentation is an excellent resource that shows, in detail, the way in which each type of syntax is to be applied.

Here are some highlights of the presentation:

  • Slide 22 - Describes the different types of software and syntax used for various platforms
  • Slide 40 - Begins a section that describes in detail the configuration of MLS QoS (2960/3560/3750)
  • Slide 58 - Begins a section that describes in detail the configuration of MQC (9000/3850/3650)

Concerning your second question, if Scheduled Round Robin (SRR) is enabled, only then will the expedite queue be serviced and emptied before all others. If you want to apply a specific policing value, you must apply that to the interface as a whole, as shown in the following lesson.

I hope this has been helpful!

Laz

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