How stp BPDU communicate between cst,pvst and mst spanning tree mode

Unanswered Question
Jul 24th, 2007
User Badges:


i am facing pvid inconsistancy and type inconsistancy problem in my network.

network connectivity


sw1 is cisco siwtch(spanning tree mode pvst+)

sw2 is extreme switch(spanning tree mode is CST,it is work on cst only)

Sw3 is cisco (spanning tree mode pvst+)

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Francois Tallet Tue, 07/24/2007 - 08:44
User Badges:
  • Gold, 750 points or more

Make sure you are using the same native vlan on the link between Sw1/Sw2 and Sw2/Sw3.

Else, run MST on sw1 and sw3.



Francois Tallet Tue, 07/24/2007 - 08:51
User Badges:
  • Gold, 750 points or more

Oh, my previous email was for the pvid inconsistency. Make also sure that you're trunking on those two links;-)

If this still does not help, please, tell us exactly what inconsistency message you get, on which port, and the trunking configuration of the different ports involved.



This Discussion