Queuing Mechanisms Objectives



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Chuyển đổi dữ liệu19.04.2024
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462284788-queuing-6830188

show queueing custom

  • Router#show queueing custom
  • Current custom queue configuration:
  • List Queue Args
  • 5 3 default
  • 5 1 protocol ip list 101
  • 5 2 interface Ethernet0/0
  • 5 1 byte-count 3000 limit 40
  • 5 2 byte-count 5000
  • The show queueing custom command displays only the nondefault parameters.

Summary

  • Upon completing this lesson, you should be able to:
    • Describe custom queuing
    • Describe the benefits and drawbacks of custom queuing
    • Configure custom queuing on Cisco routers
    • Monitor and troubleshoot custom queuing

Lesson Review

    • When would you use custom queuing?
    • What are the benefits and drawbacks of custom queuing?
    • How many classes does custom queuing support?
    • How does custom queuing schedule packets?
  • QOS v1.0—3-

Objectives

Weighted Fair Queuing

    • Queuing algorithm should fairly share the bandwidth among flows by:
      • Reducing response time for interactive flows by scheduling them to the front of the queue
      • Preventing high volume conversations from monopolizing an interface
    • Implementation: Messages are sorted into conversations (flows) and transmitted by the order of the last bit crossing the flow channel.
    • Unfairness is reinstated by introducing “weight” (IP Precedence) to give proportionately more bandwidth to flows with higher weight.

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