5 Replies Latest reply on Feb 29, 2012 12:25 PM by noor Branched from an earlier discussion.

    VLAN Limitation on 3120 Switchports

    c.morgan New Member

      I have run into another issue that has to do with 802.1q on the 3120.  While using one of the switch ports as the WAN interface for a customer router I have found that the 3120 only supports vlan numbers from 1 to 512.  This is another problem as I have different area starting with different vlan numbers and some start at 1000.  I know that standard vlans range from 1 to 4096.  Can you please find out why they limited the 3120 to only support up to 512?

       

      Thanks,

       

      Charley

        • Re: Does the WAN port of a 3120 support vlans?
          Employee

          Charley,

           

          I branched the your question into a new discussion.

           

          Could you provide more details as to where you are running into this limitation (i.e. error message, configuration)? You are correct that the vlan IDs can range from 1 to 4094. I have not run into any issues in configuring a Vlan or a Vlan interface with an ID higher than 512.

           

          If you are providing details of your configuration, please be sure to remove any information that may be sensitive to your network.

           

          Thanks,

          Noor