Discovery of path characteristics using STUN

Document Type Expired Internet-Draft (individual)
Authors Tirumaleswar Reddy.K  , Dan Wing  , Paal-Erik Martinsen  , Varun Singh 
Last updated 2015-07-24 (latest revision 2015-01-20)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A host with multiple interfaces needs to choose the best interface for communication. Oftentimes, this decision is based on a static configuration and does not consider the path characteristics, which may affect the user experience. This document describes a mechanism for an endpoint to discover the path characteristics using Session Traversal Utilities for NAT (STUN) messages. The measurement information can then be used to influence the endpoint's Interactive Connectivity Establishment (ICE) candidate pair selection algorithm.


Tirumaleswar Reddy.K (
Dan Wing (
Paal-Erik Martinsen (
Varun Singh (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)