We're Sorry, Full Content Access is for Members Only...

If you like to keep on reading, Become a Member Now! Here is why:

  • Learn any CCNA, CCNP and CCIE R&S Topic. Explained As Simple As Possible.
  • Try for Just $1. The Best Dollar You've Ever Spent on Your Cisco Career!
  • Full Access to our 651 Lessons. More Lessons Added Every Week!
  • Content created by Rene Molenaar (CCIE #41726)

451 Sign Ups in the last 30 days

100% Satisfaction Guaranteed!
You may cancel your monthly membership at any time.
No Questions Asked!

Tags: ,

Forum Replies

  1. Hi Rene

    Please can you advise what I can do, I am trying to create vlan 50 on this switch and keep getting following

    SW1(config)#vlan 50
    VTP VLAN configuration not allowed when device is not the primary server for vlan database.
    SW1#sh vtp status
    VTP Version : 3 (capable)
    VTP version running : 3
    VTP Domain Name : CCIE-domain
    VTP Pruning Mode : Disabled (Operationally Disabled)
    VTP Traps Generation : Disabled
    Device ID : aabb.cc00.0700
    Feature VLAN:
    VTP Operating Mode : Server
    Number of existing VLANs : 8
    Number of existing e
    ... Continue reading in our forum

  2. Hi Mohamed,

    There are two trunking protocols, 802.1q and ISL. Some newer switches only support 802.1Q and in that case this command will be unavailable.

    It’s also possible that packet tracer doesn’t support it, it’s a simulator after all. It doesn’t matter too much though…when this command doesn’t work then the switch will use 802.1Q when you configure the interface as a trunk.


  3. Thanks, I will give it a go, I have not done that. I was speaking to a guy in my office and he was explaining that, although I had added VLAN 50, at layer 2 level. I would still need to give the VLAN an address to allow layer 3 routing.

  4. I have got it to work with the suggestions made, the mistake I made was not entering int vlan 50 as I was entering vlan 50 on its own and then trying to add the ip address which fails.

46 more replies! Ask a question or join the discussion by visiting our Community Forum