Archives for ndn testbed

Tunnel Ethernet Traffic Over NDN

[This post is a repost from written by NDN developer Junxiao Shi]

Named Data Networking (NDN) is a common network protocol for all applications and network environment. NDN’s network layer protocol runs on top of a best-effort packet delivery service, which includes physical channels such as Ethernet wires, and logical connections such as UDP or TCP tunnels over the existing Internet. Using this underlying connectivity, NDN provides a content retrieval service, which allows applications to fetch uniquely named “Data packets” each carrying a piece of data. The “data” could be practically anything: text file chunks, video frames, temperature sensor readings … they are all data. Likewise, a packet in a lower layer network protocol, such as an Ethernet frame, is also a piece of data. Therefore, it should be possible to encapsulate Ethernet traffic into NDN Data packets, and establish a Virtual Private Network (VPN) through NDN communication. This post describes the architecture of a proof-of-concept Ethernet-over-NDN tunneling program, and shows a simple performance benchmark over the real world Internet.

The Program

tap-tunnel creates an Ethernet tunnel between two nodes using NDN communication. Each node runs an instance of tap-tunnel.
This program collects packets sent into a TAP interface, and turn them into NDN packets. It then gains NDN connectivity by connecting to the local NDN Forwarding Daemon (NFD). The diagram below shows the overall architecture: Read More

Named Data Networking (NDN) Project Newsletter for April/May 2017

The NDN project team compiles and publishes this newsletter periodically to inform the community about recent activities, technical news, meetings, publications, presentations, code releases, and upcoming events. You can find these newsletters posted on the Named Data Networking Project blog.

Community Outreach

  • The NDN team will conduct a half-day SIGCOMM tutorial presenting an introduction to the architectural concepts, recent research results and remaining topics. For people interested in exploring more, the team will offer another half-day of activities for demonstrations of the NDN testbed and a set of NDN applications, introductions to the open-source codebase and code development, experimental tools, NDN emulator, mini-NDN, an NDN simulator, and discussions of future development. For more details, please see NDN Tutorial @ SIGCOMM 2017. To register for the tutorial, please see SIGCOMM 2017 registration site.

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