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• Verifying That Q-in-Q Tunneling Is Working    

• Related Topics
• Configuring Q-in-Q Tunneling (CLI Procedure)
• Example: Setting Up Q-in-Q Tunneling on EX Series Switches

Verifying That Q-in-Q Tunneling Is Working

Purpose

After creating a Q-in-Q VLAN, verify that it is set up properly.

Action

1. Use the show configuration vlans command to determine if you successfully created the primary and secondary VLAN configurations:
   
   

   user@switch> show configuration vlans

   svlan {
      vlan-id 300;
      dot1q-tunneling {
         customer-vlans [ 101–200 ];
      }
   }

2. Use the show vlans command to view VLAN information and link status:
   
   

   user@switch> show vlans s-vlan-name extensive

   VLAN: svlan, Created at: Thu Oct 23 16:53:20 2008
   802.1Q Tag: 300, Internal index: 2, Admin State: Enabled, Origin: Static
   Dot1q Tunneling Status: Enabled
   Customer VLAN ranges:
                        101–200
   Protocol: Port Mode
   Number of interfaces: Tagged 1 (Active = 0), Untagged  1 (Active = 0)
         ge-0/0/1, tagged, trunk
         ge-0/0/2, untagged, access
   

Meaning

The output confirms that Q-in-Q tunnling is enabled and that the VLAN is tagged, and lists the customer VLANs that are associated with the tagged VLAN.