Question 1,250 of 2,015
EtherChannelmediumDrag & DropObjective-mapped

Quick Answer

The correct order for Layer 3 EtherChannel setup steps is to first create the port-channel interface, then assign an IP address to it, add member ports with the no switchport command, configure the channel-group mode, and finally verify routing and port-channel status. This sequence is correct because a routed port-channel operates at Layer 3, meaning the logical interface must exist and have an IP before physical ports can be bound to it as routed ports; the no switchport command on each member port ensures they operate as Layer 3 interfaces rather than switchports, and the channel-group command ties them into the logical bundle. On the ENCOR 350-401 exam, this drag-and-drop task tests your understanding of the strict procedural order required for routed EtherChannels, and a common trap is forgetting to apply no switchport to the member ports before adding them to the channel-group, which would leave them as Layer 2 interfaces and break the configuration. A helpful memory tip is to think “Create, IP, no switchport, bundle, verify” — or simply “CINBV” — to lock in the correct sequence from first to last.

350-401 EtherChannel Practice Question

This 350-401 practice question tests your understanding of etherchannel. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Drag and drop the steps of Layer 3 EtherChannel (routed port-channel) setup into the correct order, from first to last.

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "first"

    Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Create port-channel interface with no switchport

Layer 3 EtherChannel setup requires creating port-channel interface, assigning IP, adding member ports with no switchport, configuring channel-group, and finally verifying routing.

Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.

Common exam traps

Common exam trap: an active trunk can still block the VLAN you need

A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.

Detailed technical explanation

How to think about this question

VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.

KKey Concepts to Remember

  • Access ports place end devices into a single VLAN.
  • Trunk ports carry multiple VLANs between switches.
  • Allowed VLAN lists decide which VLANs can cross a trunk.
  • Native VLAN mismatch can create confusing symptoms.

TExam Day Tips

  • Use show vlan brief to verify access VLANs.
  • Use show interfaces trunk to verify trunk state and allowed VLANs.
  • Do not treat every same-VLAN issue as a routing problem.

Key takeaway

A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.

Real-world example

How this comes up in practice

A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.

What to study next

Got this wrong? Here's your next step.

Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-401 questions on switching, trunking, and access-port configuration.

Related practice questions

Related 350-401 practice-question pages

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FAQ

Questions learners often ask

What does this 350-401 question test?

EtherChannel — This question tests EtherChannel — Access ports place end devices into a single VLAN..

What is the correct answer to this question?

The correct answer is: Create port-channel interface with no switchport — Layer 3 EtherChannel setup requires creating port-channel interface, assigning IP, adding member ports with no switchport, configuring channel-group, and finally verifying routing.

What should I do if I get this 350-401 question wrong?

Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-401 questions on switching, trunking, and access-port configuration.

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Access ports place end devices into a single VLAN.

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Same concept, more angles

1 more ways this is tested on 350-401

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. Drag and drop the steps of Layer 3 EtherChannel (routed port-channel) setup into the correct order, from first to last.

medium
  • A.Create port-channel interface with 'interface port-channel'
  • B.Assign IP address to port-channel interface
  • C.Configure member ports as no switchport (L3)
  • D.Enable port-channel interface with 'no shutdown'
  • E.Verify routing with 'show ip route' and ping

Why A: Layer 3 EtherChannel setup requires creating the port-channel interface, assigning an IP address, adding member ports as L3 ports, enabling the interface, and verifying routing.

Last reviewed: Jun 18, 2026

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