#Userspace netmap code#

However, the developed code and documentation is available at. benchmark of the new device: comparison of the new device with the FdNetDevice in standard emulation mode in a real scenario of back-to-back through ethernet of two ns-3 nodes performance evaluation in term of throughput, rtt, qdisc backlog and dropping.ĭue to the short timespan of SOCIS 2017, there will be a single deliverable at the end of the project.functional testing of the new device by ping a real host connected back-to-back through ethernet with or without presence of traffic load.EmuFdNetDeviceHelper extension to provide helper functions useful to set the netmap emulation mode.the NetmapNetDevice to send and receive packet using the netmap primitives on an emulated real device and its support for flow control and BQL.The final step perform a benchmark of the new device by comparison of the new device with the FdNetDevice in emulation mode in a back-to-back through ethernet scenario of two ns-3 nodes.īy the end of the project, the following will be delivered to the ns-3 fd-net-device module The performance bottleneck will be evaluated with profiler and we expect to improve the incoming phase, e.g., by removing the dynamic memory allocation, and the outgoing phase, e.g., with the transfer of batch of packets to the new device. In the final step, the project will introduce further optimization to gain the performance improvement on real device emulation scenarios. The support for flow control and BQL will be tested by ping a real host connected back-to-back through ethernet and with presence of traffic load (to saturate the transmission ring capacity). The flow control and BQL will be fundamental to keep a backlog in traffic-control where we will evaluate the presence of backlog and the effectiveness of the Active Queue Management algorithms as consequence of the presence of such mechanisms. Also, the project will introduce support for Byte Queue Limit (BQL) in the new device. In the second step, the project introduces a realistic flow control mechanism between the traffic control of ns-3 and the real device ring. This step includes functional testing of the new device by ping a real host connected back-to-back through ethernet. Also, the emu-fd-net-device-helper will be extended with the introduction of a new function to set the emulation in netmap mode. This step includes the integration of the netmap headers in ns-3 and the introduction of a new device, i.e., NetmapNetDevice, in the fd-net-device module. netmap allows to bypass the host networking stack and to map the device memory in user space area. In the first step, the project introduces netmap in ns-3 to gain direct access to network device. About me: I am a PhD student in Information Technology and Electrical Engineering at University of Naples Federico II.The project enables a more accurate evaluation of high level protocols, e.g., Deley Tolerant Networking protocols (DTN), and of the scheduling algorithms in emulated scenarios. Finally, the project introduces a performance evaluation of the introduced device in ns-3 in emulation scenarios on real device. Also, the project introduces a flow control mechanism between the traffic control of ns-3 and the device ring. netmap is a fast packets processing that bypasses the host networking stack and gains direct access to network device. The project introduces a device in ns-3 that uses the netmap primitives to process the incoming and outgoing traffic. Abstract: The goal of the project is the improvement of the emulation performance of the simulator.Project name: High Performance Emulation of Real Devices in ns-3.4.9 Wrapping Up (September 4-September 24).4.1 Community Bonding Period (July 3-July 16).

Userspace netmap