🛰️ SDN INT (In-Band Network Telemetry)

This project demonstrates the use of P4 and BMv2 to implement In-Band Network Telemetry (INT), with support for RTT measurement, Mininet simulation, and optional integration with Finisy.

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✅ Prerequisites

Before running the project, ensure the following are installed on your system:

• Python 3
• Mininet
• P4Runtime (P4Rc)
• BMv2 (Behavioral Model v2)
• P4C (P4 Compiler)
• Finsy

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🐍 Python Virtual Environment (Only for Finisy)

If you intend to use Finisy, you'll need to set up a Python virtual environment and install its dependencies.

Step 1: Create and activate a virtual environment

python3 -m venv venv
source venv/bin/activate

Step 2: Install required packages

pip install -r requirements.txt

# before running make sure that you copy paste alrady compiled p4 to venv env or compile the protobufs mannualy.
cp -r /usr/lib/python3/dist-packages/p4 /home/sathira/SDN-INT/venv/lib/python3.12/site-packages/p4

📝 This setup is only required if you are running Finisy. For core INT functionality with P4 and BMv2, this step is not needed. The example-ping-line-topology-with-digest requires this

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🔧 Commands

Log into a BMv2 switch:

sudo simple_switch_CLI --thrift-port 9090

Replace 9090 with the appropriate port number depending on your topology (e.g., 9091, 9092...).

Example commands inside the CLI:

show_tables
register_read rtt_result 0

TODO

• Move contoller logic of all to finsy
• Do Some refactoring and Re-organizing of files