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IpInfusion Interview Questions and Answers for 7 years Experience

Home > Experience Archives > IpInfusion > Interview Question Set 5
Telephonic Round First Round (F-2-F)

    1 / 6

    What is difference between ratelimit and shaping?

    Answer:

    Rate limit drops the packet,  shaping store excessive packets to buffer and de queue it.

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    2 / 6

    How shaping happens if traffic sent below shaping rate?

    Answer:

    Complete input traffic sent out of port since traffic rate coming within shape rate

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    3 / 6

    How color marking to be done for packets?

    Answer:

    Usually through dual token bucket packets will be color marked based on rate.  Externally through BCM flag also packet can be marked with red,  green and yellow color

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    4 / 6

    What is scheduling in which stage it happens?

    Answer:

    From queue based on scheduling, algorithm packets will be dequeued in order.  We have round-robin,  strict priority,  weighted RR algorithms. Scheduling comes after egress packet during the stage.

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    5 / 6

    What are types of shaping?

    Answer:

    Port shaping,  queue shaping.

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    6 / 6

    What is advanced in dnx qos?

    Answer:

    In dnx architecture,  QoS shall be applied on the logical interface at valance level.  So each blanket on same port shall be treated/served differently

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Telephonic Round First Round (F-2-F)