There are many challenges associated with performing valid experiments in network testbeds. Generating realistic and responsive traffic that reflects different network conditions and topologies is one of such key challenges. To perform network experiments, researchers often use a collection of commodity Linux machines as traffic generators. However, creating a large number of connections in ord...

Software Defined Networking (SDN) breaks the barrier of Internet innovation and has attracted tremendous attentions from both industrial and academic communities. Although OpenFlow is the de factor SDN protocol nowadays, which defines the interface between the data plane switches and the control plane controllers, there are emerging SDN proposals. Even for OpenFlow itself, it keeps evolving. As...

Parallel programs written using the standard Message Passing Interface (MPI) frequently depend upon the ability to efficiently execute collective operations. MPI_Scan is a collective operation defined in MPI that implements parallel prefix scan which is very useful primitive operation in several parallel applications. This operation can be very time consuming. In this paper, we explore the use ...

The rapid growth of Internet and the fast emergence of new network applications have brought great challenges and complex issues in deploying high-speed and QoS guaranteed IP network. For this reason packet classification and network intrusion detection have assumed a key role in modern communication networks in order to provide Qos and security. In this thesis we describe a number of the most ...

We present an implementation of NAT (Network Address Translation) for the NetFPGA platform capable of line-rate Gigabit Ethernet. Our implementation features RAM and CAM (Random Access and Content Addressable) memories for a fast and efficient NAT table. Several simulation and regression tests are included.

Generating realistic network traffic that reflects different network conditions and topologies is crucial for performing valid experiments in network testbeds. Towards this goal, this paper presents Precise Traffic Generator (PTG), a new tool for highly accurate packet injections using NetFPGA. PTG is implemented using the NetThreads platform, an environment familiar to a software developer whe...