When a Cisco switch receives untagged frames on a 802.1Q trunk port, Which VLAN ID is the traffic switched to by default?

Last Updated: Dec 31, 2024
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When a Cisco switch receives untagged frames on a 802.1Q trunk port, Which VLAN ID is the traffic switched to by default?

  • unused VLAN ID
  • native VLAN ID
  • data VLAN ID
  • management VLAN ID

Explanation: A native VLAN is used to forward untagged frames that are received on a Cisco switch 802.1Q trunk port. Untagged frames that are received on a trunk port are not forwarded to any other VLAN except the native VLAN.

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