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Zorluk: OrtaVLAN Configuration and 802.1Q Trunking

A network administrator is updating the configuration of an IEEE 802.1Q trunk link on interface `GigabitEthernet1/0/48` connecting two switch stacks. The interface currently passes traffic for VLANs 10, 20, and 30. The administrator must permit VLAN 50 across the link without disrupting the traffic of the existing VLANs. Which command should be applied under interface configuration mode to accomplish this requirement?

  1. switchport trunk allowed vlan add 50Cevap
  2. B
    switchport trunk allowed vlan 50
  3. C
    switchport access vlan 50
  4. D
    switchport trunk native vlan 50

Cevap

The command 'switchport trunk allowed vlan add 50' appends VLAN 50 to the existing list of allowed VLANs on an 802.1Q trunk interface without replacing current entries.
The command containing the 'add' parameter appends VLAN 50 to the existing allowed list (VLANs 10, 20, and 30). This allows VLAN 50 traffic to cross the trunk while keeping active production traffic on the existing VLANs uninterrupted.

Adım Adım Çözüm

1
Identify the goal for trunk VLAN modification
VLAN 50 must be appended to the allowed VLAN trunk list alongside existing VLANs 10, 20, and 30.
Omitting the 'add' parameter causes the command to overwrite the existing allowed VLAN list entirely.
2
Select the proper Cisco IOS trunk configuration syntax
Use 'switchport trunk allowed vlan add 50' on interface GigabitEthernet1/0/48.
The 'add' keyword preserves currently permitted VLANs while expanding trunk access to include the new VLAN ID.

Anahtar Kavram

802.1Q Trunk Allowed VLAN List Modification
Tahmini Süre:1m 15s
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Konular

VLAN Configuration and 802.1Q Trunking

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