How can I find out who is the root bridge of a vlan?

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Jul 23rd, 2007
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Hello,

How can I find out who is the root bridge of a vlan?

What if "show spanning-tree vlan 1" command is not accessible.Is there any way to find out the root bridge of a vlan?

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JORGE RODRIGUEZ Mon, 07/23/2007 - 07:45
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for IOS switch:


show spanning-tree vlan #


or show spanning-tree root



For set base catos switch:


show spantree

show spantree summary



Pavel Bykov Tue, 07/24/2007 - 11:48
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Not accessible because of restrictions or version of OS?

mchoo2005 Tue, 07/24/2007 - 22:51
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Ethereal/Wireshark might be able to capture some of the Spanning Tree chatter. Especially if you could plug your laptop/PC with Ethereal/Wireshark directly to a trunk port.

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