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Experimental Behaviour Discovery for P2P Overlay Networks

This document outlines an experimental approach for behavior discovery in peer-to-peer overlay networks, focusing on STUN servers, to assess network performance and stability. The methodology aims to reduce costly mistakes in network parameter selection by leveraging behavior discovery knowledge. The success criteria include demonstrating improved performance and stability through the implementation of behavior discovery.

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Experimental Behaviour Discovery for P2P Overlay Networks

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  1. draft-ietf-behave-nat-behavior-discovery-02 Derek MacDonald Bruce Lowekamp

  2. Changes from IETF-69 • Changed intended status to experimental, based on list discussion. • Per discussion at 69 and changes to 3489bis: • Removed mandatory shared secret, either use rate-limiting or credentials • 3489bis compatibility addressed by making attributes optional, renaming attributes that now have different numbers.

  3. Applicability • Clarify not intended to duplicate original 3489 • Two uses described: • Diagnostics • Intended for administrator/programmers • Not considered experimental • Application tuning • Example of P2P role selection • Describes experimental aspects (on next slide)

  4. Experimental Use: P2P Overlay • Proposed as specific example of experimental test case. • Perform behavior-discovery using other peers collectively as stun server • Determine whether able to be a peer or client (or whether to provide TURN service) based on results and contact with other peers • Used for initial selection of parameters. Choices will likely vary with further experience. • Key question: does behavior discovery provide less likelihood of costly mistakes than other approaches?

  5. Criteria for Success • An experiment would be considered a success if: • An implementation determines its initial choice of behavior based on behavior-discovery knowledge • Must operate either in a deployment with STUN servers or duplicating a STUN server’s behavior with multiple peers • Must present experimental evidence that the use of behavior-discovery results in improved performance and network/application stability • A protocol specification must define how behavior-discovery is applied

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