Thursday, 15 November 2012

Difference between VTP versions

VTP version 1:

  • Supports normal VLAN numbers (1-1001)
  • Supports pruning of unused VLANs (no longer sends broadcasts and unknown unicasts
  • supports cleartext and MD5 digest password

VTP version 2:

  • Forwards the VTP messages without checking the version number or domain in transparent mode
  • Supports Token Ring
  • Performs consistency check on the VTP / VLAN parameters (from CLI or SNMP)
  • Pass on Unrecognised TLVs


VTP version 3:

  • Supports extended VLAN numbers (1-4095)
  • Transfer information regarding Private VLAN structure
  • Support for databases other than VLAN (for example MST)
  • Protection from unintended database overrides during insertion of new switches
  • Hidden password protection


- CCNP SWITCH 642-813 Official Certification Guide

7 comments:

  1. Thanks for putting this together...This is great reference.

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  2. Mr. Ali i am not agree with you statement " Forwards the VTP messages without checking the version number or domain in transparent mode ".

    Due to domain mismatch, trunk negotiation will not form.

    " %DTP-5-DOMAINMISMATCH: Unable to perform trunk negotiation on port Fa0/1 because of VTP domain mismatch.

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  3. They way of describing the VTP versions categorically is amazing this is the best way to communicate and explain the difference between all types of VTP's. latest international news in urdu must go through from it.

    ReplyDelete
  4. VTP ver2 enabled switch in transparent mode will not forward vtp update if domain doesnt match.

    ReplyDelete