WeOS
5.20.1

# Transparent Bridge

## Introduction

A transparent bridge is used to configure multiple ports in a group that can only forward traffic between those ports. The ports configured in a transparent bridge is isolated from other ports, including the CPU.

## Overview

The figure below shows a configured switch where ports 1 through 4 is configured as normal switched ports. Ports 5 and 6 is configured in a transparent bridge, thus traffic passing trough those ports are isolated from the other ports.

                       Switch A
                 .--------------------.
    -------------+ 1 -----\ /------ 2 +-------------
                 |         X          |
    -------------+ 3 -----/ \------ 4 +-------------
                 |                    |
    -------------+ 5 -------------- 6 +-------------
                 '--------------------'

Figure 1: Transparent bridge for ports 5 and 6

## Configuration

Transparent bridges is configured from the port contex, setting the bridge id for port(s).

    example:/#> configure
    example:/config/#> port ethX5,ethX6
    example:/config/port-ethX5..ethX6/#> bridge-group 1
    example:/config/port-ethX5..ethX6/#> leave

Note

Make sure you are not configuring the port that you are accessing the unit from in a transparent bridge as you will loose access to the unit.

### Syntax

`[no] bridge-group [id]`

  Set the id for the transparent bridge.

  no
    Disable the transparent bridge.
  id
    Use id (number) for the transparent bridge.

## Status

The current configured transparent bridge(s) can be observed with `show port`

    example:/#> show port
    [...]
    ethX5            Down    100-T  ----------  No-Link         br-grp-1
    ethX6            Down    100-T  ----------  No-Link         br-grp-1
    [...]

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