QoS

3560/3750 Qos in Deep dive

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Qos Flowing mechanism#  Classification    >>>   Policing/Marking >>>  InputQ Mapping/Input queuing >>> Ingress scheduling > Stack Ring > OutputQ mapping/Output queuing > Egress Scheduling Here the example commented with some lines omitted. Please bear in mind, that these examples don’t cover all the possibilities.  !— Policing/Markingmls qos map policed-dscp  46 to 0 !—  how traffic is marked if it is policedmls qos map cos-dscp 0 8 16 26 32 46 48 56 !—  map cos values…

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Cisco QoS Queuing Methods

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Cisco Queuing Methods First In First Out (FIFO) Queueing First In, First Out (FIFO) Queueing Packets are forwarded in the same order in which they arrive at the interface. Priority Queuing (PQ) PQ ensures that important traffic gets the fastest handling at each point where it is used. It was designed to give strict priority to important traffic. Weighted Fair Queuing (WFQ) WFQ is one of Cisco’s premier queuing techniques. It is a flow-based queuing…

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Cisco 3560 MLS QOS All in One

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MLS QOS has been one of the greatest fear for my CCIE RS exam. I’ve read it several times, labbed it more than 3 times, but still I just cannot understand it. Then I decided to write my own notes to teach myself and hopefully any of you mere mortals like me. I’ll start with this Classification and Marking and let see how deep the rabbit hole goes for the next few parts. Enjoy! Classification…

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