Examkin

Soru

Zorluk: KolayVLAN Configuration and 802.1Q Trunking

A network administrator configures an IEEE 802.1Q trunk interface on a switch and executes the command `switchport trunk native vlan 20`. How does the switch handle outgoing frames belonging to VLAN 20 on this trunk interface?

  1. It transmits the frames onto the link without adding an 802.1Q VLAN tag.Cevap
  2. B
    It encapsulates the frames with an 802.1Q header containing VLAN ID 20.
  3. C
    It drops the frames because native VLAN traffic cannot travel across a trunk link.
  4. D
    It routes the frames directly to VLAN 1 without requiring a Layer 3 device.

Cevap

It transmits the frames onto the link without adding an 802.1Q VLAN tag.
On an IEEE 802.1Q trunk port, traffic belonging to the designated native VLAN is transmitted across the link without an added 802.1Q header tag. Because VLAN 20 is configured as the native VLAN, outgoing frames for VLAN 20 are sent untagged.

Adım Adım Çözüm

1
Identify the operation of IEEE 802.1Q native VLANs on trunk interfaces.
IEEE 802.1Q defines a native VLAN for trunk links where traffic is forwarded without an 802.1Q header tag.
Native VLAN configuration allows untagged frame transmission across trunk links for backward compatibility with non-tagging devices.
2
Apply the configuration command to VLAN 20.
Frames associated with VLAN 20 on this specific port will be egressed untagged.
The command explicitly sets VLAN 20 as the native VLAN for the trunk port.

Anahtar Kavram

802.1Q Native VLAN Tagging Behavior
Bu soruyu puanla

Konular

VLAN Configuration and 802.1Q Trunking

Bu konudan daha fazla soru