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4A0-105 · Question #38

Why is MAC explosion a factor to be considered when designing a large VPLS network? (Choose 2)

The correct answer is A. The time to relearn thousands of MAC addresses may result in excessive flooding or loss of D. It could take several seconds to relearn thousands of MAC addresses denying QoS/SLA. See the full explanation below for the reasoning.

Question

Why is MAC explosion a factor to be considered when designing a large VPLS network? (Choose 2)

Options

  • AThe time to relearn thousands of MAC addresses may result in excessive flooding or loss of
  • BIf the FDB reaches the limit, the router will discard frames.
  • CDiscarding frames when the FDB limit is reached could deny SLA guarantees.
  • DIt could take several seconds to relearn thousands of MAC addresses denying QoS/SLA

How the community answered

(47 responses)
  • A
    85% (40)
  • B
    4% (2)
  • C
    11% (5)

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