An engineer is troubleshooting Layer 2 issues and discovers intermittent reachability to devices in same VLAN. Which two causes are common of this issue? (Choose two.)

The correct answer is B. The MAC address is flapping. C. A unidirectional link is present. https://community.cisco.com/t5/networking-documents/basic-steps-to-troubleshoot-layer-2-lan- issue/ta-p/3143005

Troubleshooting Wireless Infrastructure

Question

Options

AA duplex mismatch has been detected.
BThe MAC address is flapping.
CA unidirectional link is present.
DThe root bridge has been changed.
EThe duplex mode is not configured.

How the community answered

(18 responses)

A
6% (1)
B
94% (17)

Explanation

https://community.cisco.com/t5/networking-documents/basic-steps-to-troubleshoot-layer-2-lan- issue/ta-p/3143005

Topics

#Layer 2 troubleshooting#MAC flapping#unidirectional link#network connectivity

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