spanning-tree (PVST)-root bridge change


Can anyone tell me the reason for the following ? There are 4 switches which is running spanning-tree (PVST). I turned off spanning-tree for the root bridge,but nothing happened except that another switch became root bridge.

thanks in advance

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did u do a sh spanning tree?check yr configuration.

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Jovan Yeo

Well what would you like to happen? :-)

Depending on your network topology it is quite possible that even with STP off on one or more switches that the network will still operate correctly or even optimally.

If you post the topology (ASCII art or maybe a link to a diagram somewhere) then maybe someone will come up with some firm suggestions.

I forget whether with STP off cisco switch are transparent to BPDUs or if they block them. Well I have never turned STP off.

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