{
  "number": 8985,
  "title": "The RACK-TLP Loss Detection Algorithm for TCP",
  "authors": [
    "Y. Cheng",
    "N. Cardwell",
    "N. Dukkipati",
    "P. Jha"
  ],
  "published": "2021-02",
  "status": "Proposed Standard",
  "stream": "IETF",
  "area": "wit",
  "working_group": "tcpm",
  "pages": 29,
  "formats": [
    "HTML",
    "TXT",
    "PDF",
    "XML"
  ],
  "abstract": "This document presents the RACK-TLP loss detection algorithm for TCP. RACK-TLP uses per-segment transmit timestamps and selective acknowledgments (SACKs) and has two parts. Recent Acknowledgment (RACK) starts fast recovery quickly using time-based inferences derived from acknowledgment (ACK) feedback, and Tail Loss Probe (TLP) leverages RACK and sends a probe packet to trigger ACK feedback to avoid retransmission timeout (RTO) events. Compared to the widely used duplicate acknowledgment (DupAck) threshold approach, RACK-TLP detects losses more efficiently when there are application-limited flights of data, lost retransmissions, or data packet reordering events. It is intended to be an alternative to the DupAck threshold approach.",
  "keywords": [
    "TCP",
    "Loss Recovery",
    "Reordering"
  ],
  "draft": "draft-ietf-tcpm-rack-15",
  "doi": "10.17487/RFC8985",
  "urls": {
    "html": "https://rfc.dk/rfc8985/",
    "text": "https://rfc.dk/rfc8985.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc8985",
    "datatracker": "https://datatracker.ietf.org/doc/rfc8985/"
  },
  "text_modified": "2021-02-21T02:19:59.853955889Z"
}