Abstract:
Nowadays, networking and virtualization technology has been developing in
momentum. Software Defined Networking (SDN) has been popular for research and
innovation. Universities and research labs are the basic points for innovation because
innovation by academia and research organizations can accelerate the rate of change in
industries. SDN construction exercises have been developed in e-Learning. Software-
Defined Networking (SDN) is a networking approach that decouples the control plane
from the data plane, allowing centralized network management. It remains popular in
the research field for its benefits that researchers continue to explore various aspects
such as: network security, traffic management, network virtualization, edge computing,
machine learning and so forth. SDN's flexibility and programmability keep it relevant
for emerging technologies and innovative network solutions.
When performing network construction exercises, novice learners cannot
understand the behavior of their network and fail to satisfy the requirements for the
network reachability of communication data. In this system, learners construct SDN
network construction exercises by using Trema and OpenFlow Protocol is used for
communication between controllers and switches. Here, some learners cannot find their
bugs from their settings due to the reasons such as ping cannot find delivery routes
including switches, switches have no function to log rules used for choosing output
ports for packets, and Trema cannot find execution statements used for setting rules to
switches. To satisfy these problems, learners need help and the system will provide
analysis results for learners in visual way so that they can narrow down executed
statements that cause incorrect communication. This dissertation presents a
Dependency Analyzing System for Communication Activities in Network Construction
Exercises using Trema. It includes four main modules: constructing Software Defined
Network (SDN) Construction Exercises Using Trema, collecting data packets from
constructed virtual network, collecting executed statements in controller program, and
giving the analysis results to learners so that they can narrow down their visualizing
packet location and executing statement information in chronological order.
