# Issue

**Title:** STP is not classified as a switch across RTAs

## Description
When STP (Spanning Tree Protocol) is present, the system fails to classify it as a switch. This misclassification occurs consistently across both RTAs.
Expected behavior: STP should be correctly identified and classified as a switch.

## Task

Modify the repository so that the issue described above is resolved. The task's test suite verifies your patch by applying it on top of the base commit `8dcabe8aeec4` and running the modified tests.