massimogirondi / tutorial_ik2220

Code used in IK2220 at KTH to demonstrate how to integrate Click with POX in Mininet

IK2220 - Pox + Click

This repository contains some simple examples on how you can integrate POX with Click.

The mininet topology is composed by 2 hosts connected via 2 chained switches:

        ┌───────────────────┐
        │  POX Controller   │
        │                   │
        └──┬──────────────┬─┘
           │              │
           ▼              ▼
        ┌──────┐     ┌──────┐
       1│ SW1  │2   1│ SW2  │2
    ┌───┤id=0x1├─────┤id=0xf├──┐
    │   └──────┘     └──────┘  │
   0│                          │0
 ┌──┴──┐                    ┌──┴──┐
 │ H1  │                    │ H2  │
 └─────┘                    └─────┘

We'll replace SW2 with a Click-based forwarder, which will steal packets and do the forwarding instead of OpenVSwitch.

• controller_base.py is a simple POX controller that will start the standard LearningSwitch for all switches
• controller_click_base.py replaces the second controller/switch with Click
• controller.py is a complete example with also process termination management
• forwarder.click is a simple L2 forwarder with 2 ports (a.k.a. a bridge)
• forwarder.click is a L2 forwarder demonstrating Print, Script and DriverManager elements

How to use

• Start your network with sudo python topology.py
• Start a controller with PYTHONPATH=. python /opt/ik2220/pox/pox.py controller
• Send some packets from the mininet console: h1 ping h2
• Have fun!

Copyright

(C) Massimo Girondi 2022 - [email protected] - BY-NC-SA 4.0