1 / 17

Evolution of Receiver Partial-Reliable SCTP in VoIP Networks

Learn about the history, features, and advantages of SCTP in voice-over-IP networks. Explore the specialized transport protocol's developments, from call control signaling to enhanced reliability assessment. Discover SCTP's multiple delivery modes, message framing, and congestion control capabilities, with simulations showcasing its performance compared to UDP and PR-SCTP variants.

kuper
Télécharger la présentation

Evolution of Receiver Partial-Reliable SCTP in VoIP Networks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Advanced Computer Network SystemsInternet Protocols & Schemes Receiver Partial-Reliable SCTP Electrical & Computer Engineering Mississippi State University

  2. History of SCTP • IETF RFC 2960 • Developed specialized transport protocol for call control signaling in voice-over-IP (VoIP) networks. • Embracement of SCTP • SCTP became a general-purpose protocol joining UDP and TCP in the Transport layer. Electrical & Computer Engineering Mississippi State University

  3. SCTP Features • Multiple Delivery Modes • Message Framing • Multihoming • Multistreaming • TCP-friendly Electrical & Computer Engineering Mississippi State University

  4. (Partial-Reliability) SCTP • Extension of SCTP (RFC 3758) • Created a ForwardTSN chunk • Sender assigns degrees of reliability per stream to reduce retransmits • Time-to-live per stream Electrical & Computer Engineering Mississippi State University

  5. (Receiver Partial-Reliable) SCTP • Modification of SCTP • Gives receiver ability to judge the reliability of a stream of data • Receiver “SACKs” data not received in order to get the newest data Electrical & Computer Engineering Mississippi State University

  6. (Receiver Partial-Reliable) SCTP • Advantages over UDP • Congestion and Flow Control (TCP-Friendly) • Advantages over PR-SCTP • Reduces overhead Electrical & Computer Engineering Mississippi State University

  7. Network Simulator 2 (ns-2) • Wrote module in C++ • Created simulations with OTcl • Very fast simulation time provides efficient analysis Electrical & Computer Engineering Mississippi State University

  8. 0 1 Simulation One:UDP • Simple network of 2 nodes • 10Mb bandwidth and 200ms delay Electrical & Computer Engineering Mississippi State University

  9. Simulation One:UDP Electrical & Computer Engineering Mississippi State University

  10. Simulation One:UDP Electrical & Computer Engineering Mississippi State University

  11. Simulation Two:PR-SCTP (Reliability = 0) Electrical & Computer Engineering Mississippi State University

  12. Simulation Two:PR-SCTP (Reliability = 0) Electrical & Computer Engineering Mississippi State University

  13. Simulation Two:PR-SCTP (Reliability = 1) Electrical & Computer Engineering Mississippi State University

  14. Simulation Two:PR-SCTP (Reliability = 2) Electrical & Computer Engineering Mississippi State University

  15. Simulation Two:RPR-SCTP Electrical & Computer Engineering Mississippi State University

  16. Simulation Two:RPR-SCTP Electrical & Computer Engineering Mississippi State University

  17. Will Jenkins and Kennabec Walp SCTP References • R. Stewart and Q. Xie et. al., “Stream Control Transmission Protocol.” IETF RFC 2960. October 2000 • S. Fu and M. Atiquzzaman, “SCTP: state of the art in research, products, and technical challenges.” Computer Communications. pp. 85-91. October 2003. • R. Stewart. M. Ramalho, Q. Xie, and P. Conral. “SCTP Partial Reliable Extension.” IETF RFC 3758. • H. Wang, Y. Jin, W. Wang, J. Ma, and D. Zhang. “ The performance of PRSCTP, TCP, and UDP for MPEG-4 multimedia traffic in mobile network.” International Conference on Communication Technology. pp. 414-419. April 2003. • K. Fall and K. Varadnam, “The ns Manual.” December 2003. [Online] Available: http://www.isi.edu/nsnam/ns/ns-documentation Electrical & Computer Engineering Mississippi State University

More Related