{
  "draft": "draft-ietf-straw-sip-traceroute-03",
  "doc_id": "RFC7403",
  "title": "A Media-Based Traceroute Function for the Session Initiation Protocol (SIP)",
  "authors": [
    "H. Kaplan"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "7",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Sip Traversal Required for Applications to Work",
  "abstract": "SIP already provides the ability to perform hop-by-hop traceroute for SIP messages using the Max-Forwards header field to determine the reachability path of requests to a target.  A mechanism for media-loopback calls has also been defined separately, which enables test calls to be generated that result in media being looped back to the originator.  This document describes a means of performing hop-by-hop traceroute-style test calls using the media-loopback mechanism to test the media path when SIP sessions go through media-relaying back-to-back user agents (B2BUAs).",
  "pub_date": "November 2014",
  "keywords": [],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC7403",
  "errata_url": null
}