# Search for root bridge

**URL:** https://forum.networklessons.com/t/search-for-root-bridge/23762
**Category:** Routing & Switching
**Created:** [February 16, 2022, 7:53am UTC](https://forum.networklessons.com/t/search-for-root-bridge/23762 "2022-02-16T07:53:11Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![colella](https://cdn-forum.networklessons.com/letter_avatar_proxy/v4/letter/c/91b2a8/32.png) [@colella](https://forum.networklessons.com/u/colella)
#### Post date: [February 16, 2022, 7:53am UTC](https://forum.networklessons.com/t/search-for-root-bridge/23762/1 "2022-02-16T07:53:11Z")

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Goodmorning everyone  
what practical advice to find the root bridge on a network with about 290 switches ?

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [February 18, 2022, 5:31am UTC](https://forum.networklessons.com/t/search-for-root-bridge/23762/2 "2022-02-18T05:31:27Z")

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Hello Giovanni

Take a look at this response here:

> [@Spanning-Tree Root Bridge Configuration](https://forum.networklessons.com/t/spanning-tree-root-bridge-configuration/13949/4):
>
> Hello Giovanni In order to find the root bridge, you can issue the show spanning-tree command, and this will show you the root bridge for each VLAN configured on the switch. You’ll get something like this: SW2#show spanning-tree vlan 10 VLAN0010 Spanning tree enabled protocol ieee Root ID Priority 24586 Address 5254.001a.935a Cost 4 Port 1 (GigabitEthernet0/0) Hello Time 2 sec Max Age 20 sec Forward Delay 15 …

I hope this has been helpful!

Laz