| 3 | 3 | To simulate real networks Emulab offers a choice of injecting delays and dropping packets. This is done by inserting intercepting nodes, running dummynet, that delay packets and induce some artificial losses. DETER inherited this feature from emulab, however, real network's behaviour is far different from static loss and delays. This new delay node tries to emulate real delays that fits into some well-know probability distribution. Also, it allows the user to configure a more sophisticated loss model. This new delay node is similar to dummynet by the mean of intercepting connections. These nodes runs Click modular routers, with some new modules developed in DETER. Below is the description of the command that sets up networks and configure nodes with the new features. The new command syntax is similar to the old make-lan to make an easy transition. However, it doesn't require the user to memorise the position of the parameters. |
