In-network data store

For the complete version, please see the multicast branch.

Motivation

The goal of our project is to create a proof of concept in-network data store, that circulates data in packets between switches organized in loops on the network. It can be thought of as a key-value store, where there are a finite number of unique keys, representing some information stored in a packet. In our model, we can add a packet to the network, then query or remove it by its key.

Dependencies and prerequisites

• P4
• Python

To read more about how to obtain the required software please visit https://github.com/p4lang/tutorials#obtaining-required-software

Getting started

In order to try out our application, simply build the code with a make command and then type xtrem h1 h4. Start listening on host h4 by typing python receive.py You can send packets on host h1 and whenever you want to query a packet, it will appear on host h4.

Sending a packet:

You can:

• send in a new packet: python send.py --packet_id <packet_id> <message>
• query an existing packet: python send.py --packet_id <packet_id> --query <message>
• delete an existing packet: python send.py --packet_id <packet_id> --delete <message>