I glad for any help on this topic



  • Does this link help?
    – Zac67
    Aug 23, 2021 at 14:16
  • 1
    Copy the vlan.dat file from src switch to the dst switch, and reload without any "write". VTP is a cisco proprietary method of sync'ing vlan data across a domain -- it's ancient, has no security, and creates more headaches than it helps. (you still have to go to each member switch to assign ports)
    – Ricky
    Aug 23, 2021 at 17:32
  • @Ricky There is security, it’s just really poor. But yeah, VTP should be left in transparent mode and never messed with if it can be avoided.
    – Jesse P.
    Aug 23, 2021 at 19:10


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