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Exam 300-115 All Questions

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Exam 300-115 topic 1 question 23 discussion

Actual exam question from Cisco's 300-115
Question #: 23
Topic #: 1
[All 300-115 Questions]

Refer to the exhibit.

What is the result of the configuration?

  • A. The EtherChannels would not form because the load-balancing method must match on the devices.
  • B. The EtherChannels would form and function properly even though the load-balancing and EtherChannel modes do not match.
  • C. The EtherChannels would form, but network loops would occur because the load-balancing methods do not match.
  • D. The EtherChannels would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with EtherChannel mode active.
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Suggested Answer: B 🗳️
An etherchannel will form if one end is active and the other is passive. The table below summarizes the results for LACP channel establishment based on the configuration of each side of a link:

LACP Channel Establishment -

Load balancing can only be configured globally. As a result, all channels (manually configured, PagP, or LACP) use the same load-balancing. This is true for the switch globally, although each switch involved in the etherchannel can have non matching parameters for load balancing.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/54sg/configuration/guide/config/channel.html#wp1020804

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