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New Member

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

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?

3 REPLIES

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

for IOS switch:

show spanning-tree vlan #

or show spanning-tree root

For set base catos switch:

show spantree

show spantree summary

Silver

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

Not accessible because of restrictions or version of OS?

New Member

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

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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