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HPE6-A45 Exam - Question 16

Refer to the exhibits.

Exhibit 1 -

Exhibit 2 -

In the exhibits, VLAN 20 under a device name indicates that the device is configured with that VLAN. The exhibits also indicate whether VLAN 20 is statically configured on each link, either as an untagged or a tagged VLAN. If the link has no label, VLAN 20 is not statically configured on that link.

A network administrator needs to deploy AOS-Switches that use port-based tunneled node. The plan calls for tunneled-node endpoints to be assigned to VLAN 20 and for the Aruba Mobility Controller to handle the tunneled-node traffic at Layer 2. Which exhibit shows the correct plan for VLAN 20 in the wired infrastructure?

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Correct Answer: C

In a port-based tunneled node configuration, the tunneled-node endpoint should be assigned to an untagged VLAN. This untagged VLAN communicates the desired default VLAN to the controller. Since the VLAN exists on the Mobility Controller at the distribution or core, it does not need to be tagged on the switches' uplinks. Exhibit C shows this correct setup, where the tunneled-node endpoint is connected to the untagged VLAN 20 on Switch-1 and the controller handles VLAN 20 traffic at Layer 2.

Discussion

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EdwinHOption: C
Mar 31, 2020

COrrect answer is C. Keep in mind that the switch is simply using the untagged VLAN on the tunneled-node port to communicate the desired default VLAN to the controller. It is not switching the tunneled-nodes’ traffic in this VLAN, so you don’t need to tag it on the switches’ uplinks as you normally would. Instead, the VLAN exists on the MC at the distribution or core.

barsoom1980Option: C
May 12, 2020

C is the correct answer, the VLAN exists on the MC

GiGiWRCOption: C
May 26, 2020

yes, C

lmtnhohgwaOption: D
Mar 22, 2020

23 D is correct

sco77
Apr 10, 2020

"If the link has no label, VLAN 20 is not statically configured on that link."

DGriffOption: A
Sep 15, 2020

This is Layer 2 tunnel-mode forwarding, which the access switch has an untagged port in tunnel mode (port-base), and the MC taggs the frame on its end of the tunnel before forwarding it to the distribution