VLAN

 

VLAN

#en

#conf t

#Vlan <Vlan-ID> exp : vlan 10

#Name <name xxx>

#exit (untuk mengaktifkan vlan, kalau tidak exit maka tidak di save pengaturanya)

untuk menerapkan di interface

#en

#conf t fa/gig (port number) ex fa 0/1 or gig 0/1

#switchport mode access

#switchport access <Vlan-ID> exp : vlan 10

#exit

Delete Vlan

#no vlan  <Vlan-ID> exp : vlan 10

1. Check VLAN Summary

show vlan brief

• Displays all VLANs configured on the device, their names, status, and associated ports.

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2. Verify Interface VLAN Assignment

show interfaces [interface-id] switchport

• Replace [interface-id] with the specific interface (e.g., GigabitEthernet0/1).
• This shows:
  • Administrative and operational mode (e.g., access or trunk).
  • VLAN assigned to the interface.

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3. Check VLAN Trunking Information

show interfaces trunk

• Displays:
  • Interfaces in trunk mode.
  • Allowed VLANs on the trunk.
  • Native VLAN for the trunk.

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4. View VLAN in the Spanning Tree

show spanning-tree vlan [vlan-id]

• Replace [vlan-id] with the VLAN you want to check.
• Displays the spanning-tree topology for the specified VLAN.

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5. Verify the Running VLAN Configuration

show running-config

• Look for the VLAN configuration under the relevant interface or VLAN sections.

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6. Check VLAN Status in the Database

show vlan

• Provides more details, including VLAN IDs, names, and status (active/suspended).