Changes between Version 24 and Version 25 of GENIExperimenterWelcome

07/08/12 16:57:20 (7 years ago)



  • GENIExperimenterWelcome

    v24 v25  
    2929|| [ NAT Traversal / Non-transitive connectivity ]  || [[Image(Seattle.png, nolink, 100%)]] || The purpose of this assignment is to illustrate several important networking concepts by measuring the connectivity between computers spread around the Internet. For this task we will be using Seattle, and in the first part of this assignment you will familiarize yourself with the Seattle demokit. Once you are comfortable with the demokit, we will run an all-pairs-ping on computers distributed around the world. The goal of running the all-pairs-ping is to observe non-transitive connectivity (when two computers cannot communicate, but they can both communicate with a third computer). Following this, we will set up one-hop detour routing to circumvent non-transitive connectivity to allow the computers to communicate through the intermediate node. The final part of the assignment investigates whether or not a computer is behind a NAT (network address translator) and illustrates the practical issues with communicating with a NATed node.||
     31|| [ Stop And Wait Protocol ]  || [[Image(Seattle.png, nolink, 100%)]] || In this assignment, you will implement a reliable datagram protocol using the  stop-and-wait (also known as  alternating bit) protocol. You will write client and server programs that communicate using your library. The server will listen for messages and send back acknowledgements. The client will send messages and listen for acknowledgements. The client will consider a message delivered once it receives an acknowledgment and resend an unacknowledged message after a timeout. After a finite number of resent messages, the client will give up and report an error. ||
    3233|| ClickExampleExperiment || [[Image(ClickExampleExperiment.png, nolink, 50%)]] || This example experiment shows how to use GENI resources to test a simple non-IP routing technique. This experiment will be of interest to experimenters working with novel protocols, particularly those with Click-based implementations.[[br]][[br]]You will use ProtoGENI hosts and Click modular router software to build your network.[[br]][[br]]In order to try this example experiment, you should have GENI credentials and be familiar with using the omni command line tool. Learn more about credentials Learn more about credentials at SignMeUp or by sending us mail []. ||