Deleting an Eth-Trunk With Member Interfaces

H12-811 By islever Editorial Last updated

Ethernet Switching Basics Network Device Operating Systems

Short answer

A Remove both GigabitEthernet 0/0/1 and GigabitEthernet 0/0/2 from Eth-Trunk 1 first, then delete the now-empty Eth-Trunk 1.

Question

The following figure shows the display interface Eth-Trunk 1 command output on a switch. Which of the following commands can be used to delete Eth-Trunk 1?
Exhibit: Deleting an Eth-Trunk With Member Interfaces
  1. [image: https://img.examtopics.com/h12-811/image45.png] Correct Answer
  2. [image: https://img.examtopics.com/h12-811/image46.png]
  3. undo interface Eth-Trunk 1
  4. [image: https://img.examtopics.com/h12-811/image47.png]

Key Takeaways

It tests VRP's rule that an Eth-Trunk with member interfaces cannot be deleted, and the trap is picking the direct undo interface Eth-Trunk 1 syntax without emptying the trunk first.

This H12-811 question tests deleting an Eth-Trunk on a Huawei switch that still has member interfaces; the correct choice is A, which removes both GigabitEthernet 0/0/1 and 0/0/2 before the trunk can be deleted.

Common mistake: C (`undo interface Eth-Trunk 1`) — it looks like the exact delete command, but VRP rejects it because Eth-Trunk 1 still holds GigabitEthernet 0/0/1 and 0/0/2; B and D also fail by removing only one member.

Expert Analysis

The key constraint in the exhibit The display interface Eth-Trunk 1 output shows that Eth-Trunk 1 currently has two member interfaces — GigabitEthernet 0/0/1 and GigabitEthernet 0/0/2. On Huawei VRP, an Eth-Trunk cannot be deleted while it still has member interfaces, so any correct option must first detach both members.

Why C is the trap Option C, undo interface Eth-Trunk 1, is the most attractive answer because it looks exactly like the standard "delete the object" syntax. It satisfies the goal of removing Eth-Trunk 1, but it stops being correct at one point: VRP rejects the command because the trunk still holds two members, returning an error that the interface has ports and cannot be deleted. It is the command you would use only after the trunk is empty.

Why B and D fall short Options B and D (the image-based commands) each remove only a single member interface. That leaves one member still bound to Eth-Trunk 1, so the trunk still exists and still cannot be deleted — the deletion goal is unmet.

Why A is correct Option A (the image-based command set) removes both GigabitEthernet 0/0/1 and GigabitEthernet 0/0/2 from the trunk. Once the Eth-Trunk has no member interfaces, the trunk can be deleted. The community comments agree with this reasoning: "each interface must be deleted from eth-trunk before deleting eth-trunk," and B/D "remove only one member each → the trunk still has a member and cannot be deleted." So the correct choice is A.

Exam Strategy

On configuration-equality questions, always read the display output first and list every prerequisite state it reveals — here, the two member interfaces. Reject any option that acts on only part of that state, and treat a single direct undo interface X as a trap whenever the object still has dependencies attached; sequence questions usually reward the option that clears all prerequisites.

Frequently Asked Questions

Why can't `undo interface Eth-Trunk 1` delete the trunk directly?

Because Eth-Trunk 1 still has member interfaces (GigabitEthernet 0/0/1 and 0/0/2). VRP refuses to delete an Eth-Trunk that has ports bound to it, so you must detach every member first.

How do I remove a member interface from an Eth-Trunk on a Huawei switch?

Enter the member interface (or the Eth-Trunk) and remove the binding, repeating for each member shown in display interface Eth-Trunk 1. Only when no members remain can you run undo interface Eth-Trunk 1.

What does `display interface Eth-Trunk 1` tell me before deletion?

It shows the trunk's status and, crucially, its list of member interfaces. Every member listed must be removed before the Eth-Trunk itself can be deleted.

More H12-811 FAQ →

Community Votes

A
100%

100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 4 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 4

  1. e9b92a4 👍 1 Answered A
    To delete Eth-Trunk 1 on a Huawei switch, you must first remove all member interfaces from the trunk, then delete the trunk: B, D remove only one member each → the trunk still has a member and cannot be deleted. C tries to delete the trunk while it still has members → operation is rejected.
  2. Fmoura17 👍 1 Answered A
    A. The correct answer is A. Explanation From the display interface Eth-Trunk 1 output, we can see that Eth-Trunk 1 has two member interfaces: GigabitEthernet 0/0/1 GigabitEthernet 0/0/2
  3. ButcherCapybara 👍 1 Answered A
    each interface must be deleted from eth-trunk before deleting eth-trunk.
  4. Heidorn 👍 1 Answered A
    All interfaces must be deleted firstly

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