Examplesļƒ

For the basic example, we will be having all nodes fall under one NFD. This means we can eliminate routing for a quick run.

1. Edit NFD config to see things happen

cs_max_packets 0

2. Start / Restart NFD

3. Configure Repo Prefix Strategy

$ nfdc strategy set /<group-prefix> /localhost/nfd/strategy/multicast

4. Run the following on 2 or more terminals.

$ cd ndn-python-svs # inside root directory
$ python3 examples/chat.py -n <node-name> [-gp <group-prefix>] [-h]

  • group-prefix : The registered-multicast group prefix for all under the SVS group. All should be ran with the same prefix. (example: /svs)

  • node_name : A unique, per node, name. Always unique, create new on restart. (example: node1)

5. Chat!

You should be able to chat away! See how the chat room operates when a node is down or see how it handles lots of data.

6. Investigate

Now that you see the overview of what happens, take a closer look at the mechanisms behind the StateVectorSync Protocol!

Instead of examples/chat.py try examples/count.py with ā€˜-vā€™ (verbose flag). This should be automatic (no input required) and will allow you to see the insides of the StateVectorSync Protocol.