A user reports intermittent connectivity. The technician checks the network logs and sees the following output: Which of the following is the most likely reason for this issue?

The correct answer is D. Port flapping. Port flapping, or link flapping, occurs when a switch's port state goes up and down repeatedly in a short amount of time. It can be caused by bad cables or link synchronization issues.

Hardware and network troubleshooting

Question

A user reports intermittent connectivity. The technician checks the network logs and sees the following output:

Which of the following is the most likely reason for this issue?

Exhibit

Options

AExternal interference
BHigh latency
CJitter
DPort flapping

How the community answered

(53 responses)

A
19% (10)
B
4% (2)
C
8% (4)
D
70% (37)

Explanation

Port flapping, or link flapping, occurs when a switch's port state goes up and down repeatedly in a short amount of time. It can be caused by bad cables or link synchronization issues.

Topics

#Network troubleshooting#Port flapping#Intermittent connectivity#Network diagnostics

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