Follow these steps:
1. Click on New Graph button.
2. As soon as the new graph is added, the initial table will be created automatically initially depicting the directly connected nodes.
3. For each node table individually, click the Update button to get the final table.
4. For adding an extra edge specify the source and destination along with the weight to connect the two nodes and click the Submit button.
5. After the new edges have been added, again update the table by clicking on Update button.
6. For sending the data packet, provide the source node and destination node in the space provided and click the Send Message button.
7. The best path will be chosen and displayed using red lines.