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How QoS works in UCS

Hi All,

I configured QoS in UCS and want to know how it actually works

Once I configured system classes form GUI following is the configuration found in NXOS

policy-map type queuing system_q_in_policy

  class type queuing class-platinum

    bandwidth percent 32

  class type queuing class-silver

    bandwidth percent 25

  class type queuing class-bronze

    bandwidth percent 22

  class type queuing class-fcoe

    bandwidth percent 18

  class type queuing class-default

    bandwidth percent 3

policy-map type queuing system_q_out_policy

  class type queuing class-platinum

    bandwidth percent 32

  class type queuing class-silver

    bandwidth percent 25

  class type queuing class-bronze

    bandwidth percent 22

  class type queuing class-fcoe

    bandwidth percent 18

  class type queuing class-default

    bandwidth percent 3

Then I created a qos policy called "vm-data-platinum" with rate=1000kbps and

burst=10240bytes using platinum class.

Following is the configuration found in nxos.

policy-map type queuing org-root/ep-qos-vm-data-platinum
  class type queuing class-fcoe
  class type queuing class-default
    bandwidth percent 50
    shape 1000 kbps 10240

Question1: class-default bandwith in system_q_in_poliy and system_q_out_policy

                is 3, but in vm-data-platinum it is 50. So how this works?

                I initially thought that even in vm-data-platinum the bandwidth percent of class-default

                should be 3.

Question2: In ep-qos-vm-data-platinum policy-map there is no entry to indicate that this

                 policy uses class platinum and its bandwidth?

                 So how this works?

Thanks

Jagath

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