What causes a port to be placed in the err-disabled state?

The correct answer is B. port security violation. This mode is the default violation mode; when in this mode, the switch will automatically force the switchport into an error disabled (err-disable) state when a violation occurs. While in this state, the switchport forwards no traffic. The switchport can be brought out of this er

Submitted by priya_blr· Mar 5, 2026

Question

What causes a port to be placed in the err-disabled state?

Options

Alatency
Bport security violation
Cshutdown command issued on the port
Dnothing plugged into the port

How the community answered

(34 responses)

A
3% (1)
B
88% (30)
C
6% (2)
D
3% (1)

Explanation

This mode is the default violation mode; when in this mode, the switch will automatically force the switchport into an error disabled (err-disable) state when a violation occurs. While in this state, the switchport forwards no traffic. The switchport can be brought out of this error disabled state by issuing the errdisable recovery cause CLI command or by disabling and reenabling the

Topics

#port security#err-disabled state

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