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

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Jul 24th, 2007
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Hi,


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


network connectivity

Sw1----------------Sw2--------------Sw3

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+)


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Francois Tallet Tue, 07/24/2007 - 08:44
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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.

Regards,

Francois

Francois Tallet Tue, 07/24/2007 - 08:51
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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.

F.

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