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

mirica1979 · ‎07-23-2007

Hello,

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

JORGE RODRIGUEZ · ‎07-23-2007

for IOS switch:

show spanning-tree vlan #

or show spanning-tree root

For set base catos switch:

show spantree

show spantree summary

Jorge Rodriguez

Pavel Bykov · ‎07-24-2007

Not accessible because of restrictions or version of OS?

mchoo2005 · ‎07-24-2007

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.