Is there a command to show spanning tree state?

dchenbecker · March 8, 2025, 3:26pm

I know I can use “ip -d link show ” but I was hoping that there’s a regulat “show …” command. I’ve been digging around a while in the docs and in the CLI, but haven’t found anything yet.

Thanks!

Apachez · March 8, 2025, 4:27pm

VyOS is a router and not a switch so no wonder spanning-tree isnt that worked on.

However it do exists but its disabled by default - you will find its settings under “interfaces bridge”.

So I would expect any show command to be in the range on “show interfaces bridge” or so, similar to how Mikrotik does this aswell.

And I think it could be a good feauture request that you could file for over at https://vyos.dev to make some op-mode commands to show spanning-tree information.

For more info:

https://docs.vyos.io/en/latest/configuration/interfaces/bridge.html

https://docs.vyos.io/en/latest/configuration/interfaces/bridge.html#stp

github.com

vyos/vyos-1x/blob/current/op-mode-definitions/show-interfaces-bridge.xml.in

<?xml version="1.0"?>
<interfaceDefinition>
  <node name="show">
    <children>
      <node name="interfaces">
        <children>
          <tagNode name="bridge">
            <properties>
              <help>Show specified Bridge interface information</help>
              <completionHelp>
                <path>interfaces bridge</path>
              </completionHelp>
            </properties>
            <command>${vyos_op_scripts_dir}/interfaces.py show --intf-name="$4" --intf-type=bridge</command>
            <children>
              <leafNode name="brief">
                <properties>
                  <help>Show summary of the specified bridge interface information</help>
                </properties>
                <command>${vyos_op_scripts_dir}/interfaces.py show_summary --intf-name="$4" --intf-type=bridge</command>

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github.com

vyos/vyos-1x/blob/current/src/op_mode/interfaces.py

#!/usr/bin/env python3
#
# Copyright (C) 2022-2023 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import os
import re
import sys

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system · April 7, 2025, 4:27pm

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