300-610 DCID: Designing Cisco Data Center InfrastructureDemo

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QuestionQ233

Storage Network Design

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Refer to the exhibit. A 4x10G Fibre Channel port channel is configured between SW1 and SW2 to carry backup traffic to and from the SAN. An engineer observes that 10G Link 1 is used more heavily than the other links in the port channel. What action must the engineer take on both switches to ensure traffic uses all available links between SW1 and SW2?

  • A Configure dst-mac-based load-balancing.
  • B Configure flow-based load-balancing.
  • C Configure src-dst-ip-based load-balancing.
  • D Configure exchange-based load-balancing.
Explanation

Exchange-based Fibre Channel load balancing selects a member link for the first frame of an exchange and keeps the remaining frames of that exchange on the same link. Subsequent exchanges between the same source and destination can be placed on different port-channel members, providing more granular use of the available links while preserving in-order delivery within each exchange.

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