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hmmohsin

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4 years ago

H

hmmohsin

7 Posts

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780

October 5th, 2022 19:00

Strict Priority Configuration

Hello folks,

I need help setting up strict priority configuration on per port basis. Basically i want to have two traffic classes with class-1 having strictly high priority over class-2. The dscp value of data packets will determine the respective queue on an outgoing port. I am completely new here. Thank you.

  • DELL-Marco B

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    Posted October 6th, 2022 02:00

    Hello,

    which Dell Network model are we talking about?

    Thanks

    DELL- Marco B

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  • hmmohsin

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    Posted October 6th, 2022 14:00

    Hi,

    Thanks for the response. The switch model is Dell S4048. I would really appreciate you helping me setup priority queue on per port basis. Thank you. 

  • DELL-Young E

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    Posted October 6th, 2022 18:00

    Hi,

    https://dell.to/3CElVGt

    Would you please  go through the link which provides configuration?

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  • hmmohsin

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    Posted October 10th, 2022 14:00

    Hi Young E,

    Thanks for the reply. Unfortunately, the link was not helpful. At best it explains how to create class maps. It does not explain anything about how to assign a dscp based class map to a specific queue on an interface. Any other link with a detailed example would be super helpful. A bit of context for a better suggestion: I have two types of traffic coming from multiple interface destined for a single server. Based on the dscp value of incoming packets, i want to classify the packets in two different queues (high priority queue, and a low priority queue) on the outgoing link.

    Thank you for the help.

  • DELL-Young E

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    Posted October 10th, 2022 20:00

    Hi, please refer to the links.

    https://dell.to/3TbsDJD

     

     

    https://dell.to/3SRM1vz
    (QOS) 

    I hope this helps the configuration.

     

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  • hmmohsin

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    Posted October 11th, 2022 08:00

    Hi Young E,

    Unfortunately, the links were not helpful. I have gone through these links earlier. I am unable to find strict-priority command. I tried it in both the interface mode and the config mode. But the command is not available. Attaching the screenshot below. The switch model is dell-s4048.

     

    hmmohsin_0-1665502493786.png

     

  • DELL-Chris H

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    Posted October 11th, 2022 09:00

    Hmmohsin,

     

    Sorry for the misunderstanding.

    What I am seeing is that the command isn't correct you're using. What you need to do in order to enable strict-priority queuing is that you need to be in Interface mode and use the command

     

    service-policy output policy-map-name

     

    and enter the name for the policy map in character format (32 max).

     

    Let me know if this helps.

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  • hmmohsin

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    Posted October 11th, 2022 09:00

    Hi Chris,

    Thanks for the reply. The confusion is that for "service-policy output policy-map-name" what should be the "policy-map-name"? Should it just be "strict-priority"? or do i need to create a new policy-map? If I need to create a new policy map, how would I specify strict-priority over there? Thanks

     

  • DELL-Chris H

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    Posted October 11th, 2022 10:00

    You would need to create a policy map, and the pages in the guide for policy maps should help, and can be found here.

     

     

    DELL-Chris H

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