Multilayer Software Switch

This project implements a Multilayer Software Switch as a part of the Switching and Routing in IP Networks course (SS 2023/2024). The software is designed to meet specified requirements, including MAC table management, traffic statistics, and advanced features such as Access Control Lists and Syslog integration.

Features

1. Media Access Control (MAC) Table

• The software switch dynamically learns and displays the MAC table.
• Records include the MAC address, associated port, and the remaining lifetime.
• Includes features to:
  • Automatically update MAC table entries.
  • Clear the MAC table via a GUI button.
  • Configure timers for MAC record expiration.
  • Handle cable disconnection and reconnection events effectively.

2. Traffic Statistics

• Displays real-time statistics for OSI layers 2-4 for each port, including:
  • Received and sent counters for Ethernet II, ARP, IP, TCP, UDP, ICMP, and HTTP traffic.
• Includes a reset button to clear statistics.

3. Access Control Lists (ACLs)

• Implements packet filtering without relying on built-in PCAP functions.
• Supports filtering by:
  • Source and destination MAC and IP addresses.
  • Transport layer ports and ICMP types.
• Allows combinations of rules, such as:
  • Enabling HTTP for a specific IP while disabling ICMP (ping) for a specific MAC.
• Displays the list of rules in the GUI, with options to delete them individually.
• Differentiates rules for incoming and outgoing traffic on each port.

4. Syslog

• There is a possibility to connect to remote Syslog server.
• Syslog server will receive custom logs (severities similar to CISCO logs)

Installation

1. Clone the repository:

   git clone git@github.com:xtruhlar/Software-Switch.git

Usage

1. You have to run the main.py as sudo user (on macOS) so the software can use scapy lib.

2. Configure features:

   • Set MAC table timers.
   • Add, modify, or delete Access Control List rules.
   • Connect to Syslog server

3. Monitor and interact with the switch:

   • View MAC table and traffic statistics in real-time.
   • Use the GUI buttons to reset statistics or clear the MAC table.

Note: This project is a semestral assignment for educational purposes and may require adaptation for production use. Let me know if you’d like further refinements!