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Question 383 - 350-401 discussion

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Refer to the exhibit.

The administrator troubleshoots an EtherChannel that keeps moving to err-disabled. Which two actions must be taken to resolve the issue? (Choose two.)

A.

Reload the switch to force EtherChannel renegotiation

Answers
A.

Reload the switch to force EtherChannel renegotiation

B.

Ensure that interfaces Gi1/0/2 and Gi1/0/3 connect to the same neighboring switch.

Answers
B.

Ensure that interfaces Gi1/0/2 and Gi1/0/3 connect to the same neighboring switch.

C.

Ensure that the switchport parameters of Port channel1 match the parameters of the port channel on the neighbor switch

Answers
C.

Ensure that the switchport parameters of Port channel1 match the parameters of the port channel on the neighbor switch

D.

Ensure that the corresponding port channel interface on the neighbor switch is named Portchannel1.

Answers
D.

Ensure that the corresponding port channel interface on the neighbor switch is named Portchannel1.

E.

Ensure that the neighbor interfaces of Gi1/0/2 and Gi/0/3 are configured as members of the same EtherChannel

Answers
E.

Ensure that the neighbor interfaces of Gi1/0/2 and Gi/0/3 are configured as members of the same EtherChannel

Suggested answer: B, E

Explanation:

Causes of Errdisable

This feature was first implemented in order to handle special collision situations in which the switch detected excessive or late collisions on a port. Excessive collisions occur when a frame is dropped because the switch encounters 16 collisions in a row. Late collisions occur after every device on the wire should have recognized that the wire was in use. Possible causes of these types of errors include:

A cable that is out of specification (either too long, the wrong type, or defective) A bad network interface card (NIC) card (with physical problems or driver problems) A port duplex misconfiguration A port duplex misconfiguration is a common cause of the errors because of failures to negotiate the speed and duplex properly between two directly connected devices (for example, a NIC that connects to a switch). Only half-duplex connections should ever have collisions in a LAN. Because of the carrier sense multiple access (CSMA) nature of Ethernet, collisions are normal for half duplex, as long as the collisions do not exceed a small percentage of traffic.

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asked 10/10/2024
Venkat Burri
43 questions
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